Siglent SDM3045X - Enough is enough - Page 1
Forum section: electronics / testgear

author: eloso
author_rank: Regular Contributor
timestamp: December 31, 2021, 12:10:45 pm
content: I was going to add a reply to a current thread about the 3045X but I was thinking maybe because I present a new question at the end, I should start a new thread. I trust the sysops will keep me right.I have tried very hard to like my new Siglent 3045X Bench Multimeter - it is built into a proper steel case, beautiful LCD but it more or less stops there for me. It is indeed a first for me I am going to sell a piece of gear that is less than 6 months old and I will take the hit on cost.For the record, the relay activation when measuring above 2V is so damn annoying. It occurs whether in Manual or Auto. - its not the noise , its the delay every single time you apply the probe to a point to be measured. OK, so the first thing I do at switch-on is set it to manual 60V which covers most of my bench work and gets rid of the annoying click. But what a PITA. I thought I was getting a nice multimeter experience but I can't see the low contrast blue on grey writing as used by the shift key, the thing clicks like crazy and the menu system is somewhat convoluted for me. Why can't you have a setting that allows it to restart in the same config as when you turned it off ? The SDS2000X Plus and the SVA3021X do this. Presumably the B-team were set to work on the cheaper bench meter.What made me realise I was flogging a dead horse is that I usually switch on my trusty old cheap chinese VC8145 which apart from the flimsy case and the rather old hat (but gorgeously large and clear) display seems better in so many ways. Assuming the Siglent is accurate and within spec, then the VC8145 is too - they are extremely close on all ranges. Not much point in having the Siglent if it is the VC8145 that I instinctively choose for each session.But I won't be defeated, for my retirement hobby and the occasional piece of work that still comes my way I like the idea of a good bench meter that is readable, has a screen like the Siglent, easy to use, doesn't click every time you make a measurement, switches on quickly, remembers the last settings and doesn't move around the bench when you press buttons. A test intrument that makes me feel happy to use, like my new SVA3021X and SDS2000X plus which are just great.Any suggestions as to where I go once the 3045X has gone to a new owner. Apart from staying with the VC8145 which ticks many of those boxes (when glued to the shelf that is...CheersEloso

author: nctnico
author_rank: Super Contributor
timestamp: December 31, 2021, 01:25:46 pm
content: You probably want to look at Keysight or Tektronix (Keithley) for a decent DMM. But it is going to cost you... Do you really need it? I have a Keysight 34461A 6.5 digit DMM but I only use it when I need to measure something really accurate; it has been bought for a specific project. My daily driver DMM is a VC8145 as well (for the last 10 years).

author: voltsandjolts
author_rank: Unknown
timestamp: December 31, 2021, 02:07:57 pm
content: Sounds like an excellent excuse for watching ebay for a broken 6.5 digit in need of some repair.Keithley 2000 pop up quite cheap now and again, unofficial schematic is available, as is much experience from knowledgable folks here.And you can fit a 20 channel scan card to it if you want to.

author: tautech
author_rank: Super Contributor
timestamp: December 31, 2021, 03:45:38 pm
content: Quote from: eloso on December 31, 2021, 12:10:45 pmI've always wondered this about 3045X.....There is no such model for the Chinese market but instead a 5.5 digit SDM3055X-E, that doesn't have the different measurement ranges to the other models a 3045X does.Therefore I've always thought these might be candidates for hacks to SDM3055 which do have a 2V range.Does SDM3045X HW = SDM3055X-E HW ? I think it might.Calling tv84.........Who's game to try ?

author: tv84
author_rank: Super Contributor
timestamp: December 31, 2021, 04:07:03 pm
content: Called me? I still have 2021 time to break something...

author: tautech
author_rank: Super Contributor
timestamp: December 31, 2021, 04:15:27 pm
content: Quote from: tv84 on December 31, 2021, 04:07:03 pmhttps://int.siglent.com/upload_file/zip/firmware/A_multimeter/SDM3045X_5.01.01.07R1.ziphttps://www.siglent.com/upload_file/zip/firmware/Desktop_multimeter/SDM3055X-E_2.01.01.12.zip

author: tv84
author_rank: Super Contributor
timestamp: December 31, 2021, 06:29:58 pm
content: SDM3045X_5.01.01.07R1 parsing:Code:File Header Size: 0000007000000000 - File Checksum: BAFFC355 [00000004-008ADCFD] (with only the File Header decrypted) CKSM OK00000004 - File Size: 008ADC8E (without 0x70 bytes of the File Header)0000000C - Product_ID: 1180000000026 - Vendor/Brand: SIGLENT0000003A - USB Host Controller: ISP1763****************************************************Decrypting the 0x2800 and 0x1400 blocks...Reversing file...XORing with 0xFF (incrementing pattern)...XORing with 0xFF from 0x00456E47 until 0x008ADC8D****************************************************00000000 --- Section Checksum: B7DE4C8100000004 --- Section Size: 008ADC5A [00000034-008ADC8D] CKSM OK00000008 --- Section Type: 7 (config.zip)00000034 --- 008ADC8D ***** ZIP file *****Offset Ver Flag Comp Size Packed Modified CRC32 Name Permissions Extra Details00000034 2.0 0000 0008 00200000 00001640 23/05/2015 14:37:10 B8E3CEE6 [0000005C-0000169B] datafs.img MT: 23/05/2015 07:37:21 AT: 30/08/2021 02:09:39 CT: 30/08/2021 02:09:390000169C 2.0 0000 0008 000ADD8D 0003B8C3 03/07/2015 14:55:22 E74F3CF7 [000016C6-0003CF88] libglog.so.0 MT: 03/07/2015 07:55:45 AT: 30/08/2021 02:09:40 CT: 30/08/2021 02:09:390003CF89 2.0 0000 0008 0028AD38 00285BB5 25/12/2015 11:18:11 377779EB [0003CFB0-002C2B64] ro_uImage MT: 25/12/2015 03:18:22 AT: 30/08/2021 02:09:40 CT: 30/08/2021 02:09:40002C2B65 2.0 0000 0008 0028AD38 00285B7C 25/12/2015 11:23:05 7ACA06CE [002C2B8C-00548707] rw_uImage MT: 25/12/2015 03:23:10 AT: 30/08/2021 02:09:40 CT: 30/08/2021 02:09:4000548708 2.0 0000 0008 00002A49 00000920 19/02/2016 16:56:10 644202F4 [00548733-00549052] siglentlib.sh MT: 19/02/2016 08:56:21 AT: 30/08/2021 02:09:40 CT: 30/08/2021 02:09:4000549053 2.0 0000 0008 00000205 000000E3 31/03/2016 17:58:23 3A037020 [0054907A-0054915C] update.sh MT: 31/03/2016 10:58:47 AT: 30/08/2021 02:09:40 CT: 30/08/2021 02:09:400054915D 2.0 0000 0008 00007D46 00003215 26/10/2018 09:52:10 71C1EFB0 [00549186-0054C39A] g_usbtmc.ko MT: 26/10/2018 02:52:21 AT: 30/08/2021 02:09:39 CT: 30/08/2021 02:09:390054C39B 2.0 0000 0008 00200000 000010CD 28/01/2019 14:29:13 5B5BA7C3 [0054C3C6-0054D492] firmdata0.img MT: 28/01/2019 06:29:27 AT: 30/08/2021 02:09:39 CT: 30/08/2021 02:09:390054D493 2.0 0000 0008 0005A2E8 0002D242 21/06/2021 18:00:13 501F2B13 [0054D4BB-0057A6FC] u-boot.img MT: 21/06/2021 11:00:27 AT: 30/08/2021 03:52:45 CT: 30/08/2021 02:09:400057A6FD 2.0 0000 0008 000137D1 0000AF05 21/06/2021 18:00:18 7C461EB5 [0057A71E-00585622] MLO MT: 21/06/2021 11:00:36 AT: 30/08/2021 03:52:45 CT: 30/08/2021 02:09:4000585623 2.0 0000 0008 00944E04 003033FC 30/08/2021 09:10:15 62B86DD3 [00585648-00888A43] sdm.app MT: 30/08/2021 02:10:31 AT: 30/08/2021 02:11:47 CT: 30/08/2021 02:09:4000888A44 1.0 0000 0000 00000000 00000000 30/08/2021 09:09:20 00000000 [00888A69-00888A68] config/ MT: 30/08/2021 02:09:41 AT: 30/08/2021 02:09:43 CT: 30/08/2021 02:09:4100888A69 2.0 0000 0008 000000FD 0000008A 25/01/2019 15:14:08 E54E5D04 [00888AA9-00888B32] config/NSP_config_upgrade_info.xml MT: 25/01/2019 07:14:16 AT: 30/08/2021 02:09:41 CT: 30/08/2021 02:09:4100888B33 1.0 0000 0000 00000000 00000000 30/08/2021 09:09:20 00000000 [00888B60-00888B5F] config/ui_data/ MT: 30/08/2021 02:09:41 AT: 30/08/2021 02:09:43 CT: 30/08/2021 02:09:4100888B60 2.0 0000 0008 0000433D 000041F3 03/09/2014 10:45:29 00DE4F09 [00888B9C-0088CD8E] config/ui_data/basic_ms_4w.jpg MT: 03/09/2014 03:45:59 AT: 30/08/2021 02:09:41 CT: 30/08/2021 02:09:410088CD8F 2.0 0000 0008 0000361E 000034C3 03/09/2014 10:45:29 B4EF016D [0088CDCC-0089028E] config/ui_data/basic_ms_dcc.jpg MT: 03/09/2014 03:45:59 AT: 30/08/2021 02:09:41 CT: 30/08/2021 02:09:410089028F 2.0 0000 0008 00003AEC 00003988 03/09/2014 10:45:29 661F2326 [008902CC-00893C53] config/ui_data/basic_ms_dcv.jpg MT: 03/09/2014 03:45:59 AT: 30/08/2021 02:09:41 CT: 30/08/2021 02:09:4100893C54 2.0 0000 0008 00000F58 00000D9E 03/09/2014 10:45:29 EDEE1F8D [00893C8E-00894A2B] config/ui_data/softkey_1.jpg MT: 03/09/2014 03:45:59 AT: 30/08/2021 02:09:41 CT: 30/08/2021 02:09:4100894A2C 2.0 0000 0008 00000D0D 00000C0F 03/09/2014 10:45:29 1E1129C1 [00894A66-00895674] config/ui_data/softkey_2.jpg MT: 03/09/2014 03:45:59 AT: 30/08/2021 02:09:41 CT: 30/08/2021 02:09:4100895675 2.0 0000 0008 00000B6F 000009DE 03/09/2014 10:45:29 85144740 [008956AF-0089608C] config/ui_data/softkey_3.jpg MT: 03/09/2014 03:45:59 AT: 30/08/2021 02:09:41 CT: 30/08/2021 02:09:410089608D 2.0 0000 0008 00006800 00004354 02/06/2015 17:39:08 F6E55110 [008960C3-0089A416] config/ui_data/Thumbs.db MT: 02/06/2015 10:39:17 AT: 30/08/2021 02:09:41 CT: 30/08/2021 02:09:410089A417 2.0 0000 0008 00004E05 00001D13 19/01/2015 16:40:10 5589C750 [0089A43C-0089C14E] gpib.ko MT: 19/01/2015 08:40:20 AT: 30/08/2021 02:09:39 CT: 30/08/2021 02:09:390089C14F 2.0 0000 0008 00020F50 0000D460 23/05/2015 12:04:19 7A7B9C9C [0089C179-008A95D8] musb_hdrc.ko MT: 23/05/2015 05:04:39 AT: 30/08/2021 02:09:40 CT: 30/08/2021 02:09:40008A95D9 2.0 0000 0008 00006677 000027C0 23/05/2015 12:04:19 897F1663 [008A9600-008ABDBF] ti81xx.ko MT: 23/05/2015 05:04:39 AT: 30/08/2021 02:09:40 CT: 30/08/2021 02:09:40008ABDC0 2.0 0000 0008 00003C38 000014FC 23/05/2015 12:04:19 5E171496 [008ABDE9-008AD2E4] udc-core.ko MT: 23/05/2015 05:04:39 AT: 30/08/2021 02:09:40 CT: 30/08/2021 02:09:40Disk Entries: 25 Total Entries: 25 Directory Size: 2451 bytes [008AD2E5-008ADC77]****************************************************File Processed OKSDM3055X-E_2.01.01.12 parsing:Code:File Header Size: 0000007000000000 - File Checksum: BB35EDC0 [00000004-008A1AB4] (with only the File Header decrypted) CKSM OK00000004 - File Size: 008A1A45 (without 0x70 bytes of the File Header)0000000C - Product_ID: 1150000000026 - Vendor/Brand: SIGLENT0000003A - USB Host Controller: ISP1763****************************************************Decrypting the 0x2800 and 0x1400 blocks...Reversing file...XORing with 0xFF (incrementing pattern)...XORing with 0xFF from 0x00450D23 until 0x008A1A44****************************************************00000000 --- Section Checksum: B844291E00000004 --- Section Size: 008A1A11 [00000034-008A1A44] CKSM OK00000008 --- Section Type: 7 (config.zip)00000034 --- 008A1A44 ***** ZIP file *****Offset Ver Flag Comp Size Packed Modified CRC32 Name Permissions Extra Details00000034 2.0 0000 0008 00020F50 0000D460 23/05/2015 12:04:19 7A7B9C9C [0000005E-0000D4BD] musb_hdrc.ko MT: 23/05/2015 05:04:39 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:000000D4BE 2.0 0000 0008 0028AD38 00285BB6 25/12/2015 11:18:11 377779EB [0000D4E5-0029309A] ro_uImage MT: 25/12/2015 03:18:22 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:000029309B 2.0 0000 0008 0028AD38 00285B7C 25/12/2015 11:23:05 7ACA06CE [002930C2-00518C3D] rw_uImage MT: 25/12/2015 03:23:10 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:0000518C3E 2.0 0000 0008 00919340 002F72A5 29/06/2021 14:07:00 005C5A6D [00518C63-0080FF07] sdm.app MT: 29/06/2021 07:07:01 AT: 29/06/2021 07:10:17 CT: 29/06/2021 07:03:000080FF08 2.0 0000 0008 00002A49 00000929 19/02/2016 16:56:10 644202F4 [0080FF33-0081085B] siglentlib.sh MT: 19/02/2016 08:56:21 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:000081085C 2.0 0000 0008 00006677 000027C9 23/05/2015 12:04:19 897F1663 [00810883-0081304B] ti81xx.ko MT: 23/05/2015 05:04:39 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:000081304C 2.0 0000 0008 0005A2E8 0002D246 21/06/2021 18:00:13 501F2B13 [00813074-008402B9] u-boot.img MT: 21/06/2021 11:00:27 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:00008402BA 2.0 0000 0008 00003C38 000014FE 23/05/2015 12:04:19 5E171496 [008402E3-008417E0] udc-core.ko MT: 23/05/2015 05:04:39 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:00008417E1 2.0 0000 0008 00000205 000000E3 05/01/2016 13:43:16 3A037020 [00841808-008418EA] update.sh MT: 05/01/2016 05:43:33 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:00008418EB 1.0 0000 0000 00000000 00000000 29/06/2021 14:03:00 00000000 [00841910-0084190F] config/ MT: 29/06/2021 07:03:01 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:0100841910 2.0 0000 0008 000000FD 00000086 06/01/2016 16:53:14 430CA9C7 [00841950-008419D5] config/NSP_config_upgrade_info.xml MT: 06/01/2016 08:53:28 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:01008419D6 1.0 0000 0000 00000000 00000000 29/06/2021 14:03:00 00000000 [00841A03-00841A02] config/ui_data/ MT: 29/06/2021 07:03:01 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:0100841A03 2.0 0000 0008 0000433D 000041F3 03/09/2014 10:45:29 00DE4F09 [00841A3F-00845C31] config/ui_data/basic_ms_4w.jpg MT: 03/09/2014 03:45:59 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:0100845C32 2.0 0000 0008 0000361E 000034C3 03/09/2014 10:45:29 B4EF016D [00845C6F-00849131] config/ui_data/basic_ms_dcc.jpg MT: 03/09/2014 03:45:59 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:0100849132 2.0 0000 0008 00003AEC 00003988 03/09/2014 10:45:29 661F2326 [0084916F-0084CAF6] config/ui_data/basic_ms_dcv.jpg MT: 03/09/2014 03:45:59 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:010084CAF7 2.0 0000 0008 00000F58 00000D9E 03/09/2014 10:45:29 EDEE1F8D [0084CB31-0084D8CE] config/ui_data/softkey_1.jpg MT: 03/09/2014 03:45:59 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:010084D8CF 2.0 0000 0008 00000D0D 00000C0F 03/09/2014 10:45:29 1E1129C1 [0084D909-0084E517] config/ui_data/softkey_2.jpg MT: 03/09/2014 03:45:59 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:010084E518 2.0 0000 0008 00000B6F 000009DA 03/09/2014 10:45:29 85144740 [0084E552-0084EF2B] config/ui_data/softkey_3.jpg MT: 03/09/2014 03:45:59 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:010084EF2C 2.0 0000 0008 00006800 00004356 02/06/2015 17:39:08 F6E55110 [0084EF62-008532B7] config/ui_data/Thumbs.db MT: 02/06/2015 10:39:17 AT: 29/06/2021 07:03:01 CT: 29/06/2021 07:03:01008532B8 2.0 0000 0008 00200000 00001687 23/05/2015 14:37:10 B8E3CEE6 [008532E0-00854966] datafs.img MT: 23/05/2015 07:37:21 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:0000854967 2.0 0000 0008 00200000 00000F6C 25/12/2015 10:58:00 B3B995C5 [00854992-008558FD] firmdata0.img MT: 25/12/2015 02:58:00 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:00008558FE 2.0 0000 0008 00007D46 0000321A 26/10/2018 09:52:10 71C1EFB0 [00855927-00858B40] g_usbtmc.ko MT: 26/10/2018 02:52:21 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:0000858B41 2.0 0000 0008 00004E05 00001D1B 19/01/2015 16:40:10 5589C750 [00858B66-0085A880] gpib.ko MT: 19/01/2015 08:40:20 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:000085A881 2.0 0000 0008 000ADD8D 0003B8CC 03/07/2015 14:55:22 E74F3CF7 [0085A8AB-00896176] libglog.so.0 MT: 03/07/2015 07:55:45 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:0000896177 2.0 0000 0008 000137D1 0000AF04 21/06/2021 18:00:18 7C461EB5 [00896198-008A109B] MLO MT: 21/06/2021 11:00:36 AT: 29/06/2021 07:03:00 CT: 29/06/2021 07:03:00Disk Entries: 25 Total Entries: 25 Directory Size: 2451 bytes [008A109C-008A1A2E]****************************************************File Processed OK

author: tv84
author_rank: Super Contributor
timestamp: December 31, 2021, 06:34:17 pm
content: tautech,You want someone to try crossflashing the SDM3055X-E_2.01.01.12 FW in a SDM3045X, right?

author: tautech
author_rank: Super Contributor
timestamp: December 31, 2021, 07:18:45 pm
content: Quote from: tv84 on December 31, 2021, 06:34:17 pmIt's my suspicion it could be done.We can chat privately if you wish.

author: tv84
author_rank: Super Contributor
timestamp: December 31, 2021, 07:36:15 pm
content: Quote from: tautech on December 31, 2021, 07:18:45 pmOK, in that case, patch the original SDM3055X-E_2.01.01.12.ADS with the following 16 bytes.Then it's ready to flash in a SDM3045X. As always, do it at your own risk.

author: tautech
author_rank: Super Contributor
timestamp: December 31, 2021, 07:51:13 pm
content: Quote from: tv84 on December 31, 2021, 07:36:15 pmGreat, will try tonight.....things to do today.

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 07, 2022, 11:34:57 pm
content: So ... did you try?

author: tautech
author_rank: Super Contributor
timestamp: January 08, 2022, 03:19:57 am
content: Quote from: Pinkus on January 07, 2022, 11:34:57 pmNo as we have an impending sale on our last one.Still it's something I'd like to try when we have the chance.PM me if you like.

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 09, 2022, 06:15:49 pm
content: Quote from: tv84 on December 31, 2021, 07:36:15 pmSince Tautech assured me that there were ways to undo this (in the case of bricking my unit), I tried it for me and for you folks: it works without problems. My SDM3045x became a SDM3055x.Beside the extra digit and different ranges (now 200mV / 2V etc. instead of 600mV / 6V etc.) I did not recognize any other differences at the first glance.Though my SDM3045x is silent, as it comes without a fan. I am wondering if I should add one now, as the SDM3055 does have one afaik.

author: tv84
author_rank: Super Contributor
timestamp: January 09, 2022, 06:19:38 pm
content: Quote from: Pinkus on January 09, 2022, 06:15:49 pmPost an image, please.

author: tautech
author_rank: Super Contributor
timestamp: January 09, 2022, 06:36:43 pm
content: Quote from: Pinkus on January 09, 2022, 06:15:49 pmSDM3055X-Eis the model it should be now, NOT SDM3055 !Re the fan, at this time we do not know if the China only X-E model sports a fan. Only measurement stability checks can indicate if it might need one.

author: tautech
author_rank: Super Contributor
timestamp: January 09, 2022, 07:47:46 pm
content: To those that might also be inspired to flash their 3045X...Do at your own risk....3045X don't have a precision divider and instead use SMD components to substitute the Caddock divider used in 3055 and 3065X therefore a flashed 3045X can never be a 3055 but instead the China only model SDM3055X-E.Pics of the internal differences can be found linked in the POI list in the opening post here:https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/

author: Kleinstein
author_rank: Super Contributor
timestamp: January 09, 2022, 07:56:29 pm
content: As there are some HW differences, one should check the lower ranges, if they actually work correctly. A point that may fail could be the input impedance at around 2 V. A possible way to look at this would be to watch a low leakage 10 nF or so capacitor charge or discharge from some +-2 V. The input current will show as drift rate, that can be measured with the meter itself.

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 09, 2022, 10:11:36 pm
content: Quote from: tv84 on January 09, 2022, 06:19:38 pmOK here are pictures. Keep in mind, I have not tested the unit yet, just made the conversion and looked through the menus.

author: tautech
author_rank: Super Contributor
timestamp: January 09, 2022, 11:03:28 pm
content: Quote from: Pinkus on January 09, 2022, 10:11:36 pmOh, that's interesting as it still reports it's a 3045X.Maybe tv84 can have a deeper look into the FW ?Yet you got the extra digit and the 2V range.Press the Range button so we can see the selection of ranges now available.

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 10, 2022, 12:00:57 am
content: Quote from: tautech on January 09, 2022, 11:03:28 pmSure: 200mV - 1000V

author: tv84
author_rank: Super Contributor
timestamp: January 10, 2022, 09:39:09 am
content: Quote from: tautech on January 09, 2022, 11:03:28 pmSure, it needs the .cfg of a true X-E. (remember the post I wrote about Performa01's SDS2504X+ designation...)Can anybody access one? I haven't checked if it's in the FW package.

author: tautech
author_rank: Super Contributor
timestamp: January 10, 2022, 09:47:12 am
content: Quote from: tv84 on January 10, 2022, 09:39:09 amNothing here amongst my goodies.See what you can manage to conjure up tv84.

author: tv84
author_rank: Super Contributor
timestamp: January 10, 2022, 09:50:59 am
content: Quote from: tautech on January 10, 2022, 09:47:12 amAFAIR, show me the contents of the NSP_system_info.xml file.

author: Ringmodulator
author_rank: Regular Contributor
timestamp: January 10, 2022, 12:32:14 pm
content: Looks like the specs for the 3055X-E are hard to find.See attachment and use some fantasy...I have not yet found a site to get the firmwareupdates from.Chris

author: tautech
author_rank: Super Contributor
timestamp: January 10, 2022, 12:42:00 pm
content: https://www.siglent.com/upload_file/document/SDM3055X-E_DataSheet_DS06035-C04A.pdfhttps://www.siglent.com/download/firmware/?ProId=25

author: Ringmodulator
author_rank: Regular Contributor
timestamp: January 10, 2022, 01:52:34 pm
content: Compairing the claimed accuracy of the 3045X and the 3055X-E, I can not see, how the additional digit of the 3055X-E gives any useful additional information.

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 10, 2022, 02:06:28 pm
content: For my tasks, I usually don't need absolute accuracy. It is enough for me to know whether the voltage is 3,30 Volt, if it is 3.3001 or 3.3005 does not interest me.But if I measure e.g. very small currents or resistances, then one digit more is quite informative.And this is now the case with my SDM3045x with 5.5 digits. The new last digit is stable, thus: quite useful.I would also not object about one more digit. For the SDM3065 there is already the possibility to extend it from 6.5 to 7.5 digits..... thus I would not mind 6,5 digits on my SDM3045x (of course, here the usefulness is questionable).If I really needed absolute accuracy, I would of course buy a DMM with better specs than the SDM3045. But I am satisfied, though the extra digit is a nice-to-have and actually quite usable for me.

author: Kleinstein
author_rank: Super Contributor
timestamp: January 10, 2022, 02:34:41 pm
content: On the PC interface there should already be a 6th and maybe even 7th digit. The accuracy would not be great, but at the low end (e.g. thermal EMF measrured in the 200 mV range it is nice to resolve 1 µV or maybe even 100 nV.With the new SW version one may have to redo the calibration. No sure how good the old calibration from the SDM3048 SW still is with different ranges.

author: tautech
author_rank: Super Contributor
timestamp: January 11, 2022, 09:40:19 am
content: Quote from: tv84 on January 10, 2022, 09:50:59 amWho can pull this file for tv84 please ?

author: n3mmr
author_rank: Regular Contributor
timestamp: January 11, 2022, 06:35:30 pm
content: Can this 3055X-E-for-the-3045X fw be made accessible, somewhere?

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 11, 2022, 10:19:08 pm
content: Quote from: n3mmr on January 11, 2022, 06:35:30 pmIt is all explained above how to patch the existing firmware. It is a matter of two minutes work.

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 11, 2022, 10:20:15 pm
content: Quote from: tautech on January 11, 2022, 09:40:19 amI wanted to copy it today, but there was no time left. It might take another day or two.

author: n3mmr
author_rank: Regular Contributor
timestamp: January 12, 2022, 08:02:09 am
content: Quote from: Pinkus on January 11, 2022, 10:19:08 pmSorry for being mixed up.I can't seem to find the original 3055X-E fw file.I thought, and possibly still think, that it is the original fw file for the 3055x-e that I'm supposed to patch to make it installable on a 3045x.I tried the link provided by Tautech just before the patch instructions, but that link just times out.

author: tautech
author_rank: Super Contributor
timestamp: January 12, 2022, 08:06:36 am
content: Quote from: n3mmr on January 12, 2022, 08:02:09 amThe SDM3055X-E FW link downloads directly into your browsers download folder.Just checked it and it works just as it should.

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 12, 2022, 08:26:15 am
content: Quote from: n3mmr on January 12, 2022, 08:02:09 am6th post in this thread. I tried it too - the link works.

author: dl6lr
author_rank: Frequent Contributor
timestamp: January 12, 2022, 08:57:10 am
content: Quote from: tautech on January 12, 2022, 08:06:36 amAt least from Germany the link redirects to the basehttps://int.siglent.com/and from there you can only download FW for the 3045, not 3055. Maybe the download is restricted with geolocation services:Code:bernd@laptop:~ $ wget https://www.siglent.com/download/firmware/?ProId=25--2022-01-12 09:54:04-- https://www.siglent.com/download/firmware/?ProId=25Resolving [url=http://www.siglent.com]www.siglent.com ([url=http://www.siglent.com]www.siglent.com)... 39.108.136.251Connecting to [url=http://www.siglent.com]www.siglent.com ([url=http://www.siglent.com]www.siglent.com)|39.108.136.251|:443... connected.HTTP request sent, awaiting response... 302 Moved TemporarilyLocation: http://int.siglent.com --2022-01-12 09:54:07-- http://int.siglent.com/Resolving int.siglent.com (int.siglent.com)... 72.52.197.8Connecting to int.siglent.com (int.siglent.com)|72.52.197.8|:80... connected.HTTP request sent, awaiting response... 302 FoundLocation: https://int.siglent.com/ --2022-01-12 09:54:07-- https://int.siglent.com/Connecting to int.siglent.com (int.siglent.com)|72.52.197.8|:443... connected.HTTP request sent, awaiting response... 200 OKLength: unspecified [text/html]Saving to: ‘index.html?ProId=25’index.html?ProId=25 [ <=> ] 114.55K 352KB/s in 0.3s2022-01-12 09:54:08 (352 KB/s) - ‘index.html?ProId=25’ saved

author: n3mmr
author_rank: Regular Contributor
timestamp: January 12, 2022, 09:02:37 am
content: It worked after I changed device and browser.Sorry.But the post by dl6lr seems to indicate there is some problem reaching the chinese site from europe.Both my devices are on the same network, but one is on WiFi. Needs testing.I have a similar problem reaching some Czech sites....

author: tautech
author_rank: Super Contributor
timestamp: January 12, 2022, 09:59:12 am
content: Quote from: n3mmr on January 12, 2022, 09:02:37 amYes I used to have this problem with an older version of Chrome where the siglent.com Chinese website was automatically diverted to the int.siglent.com English website.But now we can click on the globe on the international website and select the Chinese website.If you have both websites open the menu structures are almost identical which allows you to refer to the English website in order to navigate the Chinese website.......mostly.

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 12, 2022, 10:29:18 am
content: OK, here are the NSP files which were requested.Pulled from SDM3045x with installed patched SDM3055x-e firmware from the directory /usr/bin/siglent/usr/config/If these files exist multiple times in different directories and if I copied them from the wrong directory, please send a short message.

author: n3mmr
author_rank: Regular Contributor
timestamp: January 12, 2022, 01:42:19 pm
content: So I've patched the 3055x-e fw, and now I'm thinking of upgrading my 3045x with this patched fw.Can someone remind me how to revert to 3045x if this bricks my DMM?

author: n3mmr
author_rank: Regular Contributor
timestamp: January 12, 2022, 07:05:04 pm
content: Quote from: n3mmr on January 12, 2022, 01:42:19 pmAnd after a while I realised I had two more DMMs of sufficient quality for immediate needs, so I upgraded and tested.Things look good, at least initially.I don't have any voltage or current sources accurate enough for verification, but the last digit seems stable, which all on its own makes the "upgrade" actually useful.Also, for some reason, 0.2, 2 and 20 volts seem much more natural. Probably a deeply hidden memory of when I last worked in an electronic lab. Some fifty years ago!How can you get hold of accurate calibration sources w/o ruining your economy?

author: pcmihnea
author_rank: Contributor
timestamp: January 12, 2022, 09:32:18 pm
content: Quote from: n3mmr on January 12, 2022, 07:05:04 pmCan you compare the options available in the menus, for eg. the custom temperature menu added in the latest SDM3045X FW (https://siglentna.com/wp-content/uploads/dlm_uploads/2021/09/SDM3045X-Firmware-Revise-History.pdf)?If it's available, the FW for SDM3055X-E may be up to date with SDM3045X.You could also issue the SCPI *IDN? command to check if it returns any different info.

author: Kleinstein
author_rank: Super Contributor
timestamp: January 12, 2022, 11:07:13 pm
content: DC cal source are available, espeically if the only have to be resonable stable and not accurate, with a good meter to compare too.The tricky part is the AC side. Here a good source for the higher voltage higher frequency can get quite expensive.As the hardware is still the same, it is not clear if the meter with the 3055 firmware still uses the old 3048 calibration data. It may work, as the HW is still the same and they may use a compatible and maybe the same format. Hower this is not for sure, especially as different cal points are used.Without suitable cal data some ranges may be quite a bit out.A reasonabe good test would be checking a DC voltages of some 2 V in the 2 and 20 V range and see if both read reasonable (within the accuracy of the 3048) the same. This would test the input divider and here idividual units can scatter quite a bit. So wrong cal data would likely produce different readings.A similar (maybe even easier) could be done with resistors in different ranges (the very low end may not help here, as the 200 mV and 2 V range likely are done with the ADC internal gain and this is naturally quite close to nominal.

author: tautech
author_rank: Super Contributor
timestamp: January 13, 2022, 02:09:56 am
content: Quote from: Kleinstein on January 12, 2022, 11:07:13 pmFirst I'm gunna pull you up for constantly referring to 3048 and 3068 where there are no such models in the SDM range !Only SDM3065X, 3055, 3045X and the China version 3055X-E.As to the bold paragraph above if we look back to the OP in this thread we can see although SDM3045X has ranges 600mV, 6V, 60V, 600V and 1kV the OP's issue was a range relay switching at ~2V and messing with measurements where if we are to believe the datasheet the range relay should've been switching at 6V but no, 3045X range relay behavior more closely mimics the 3055 where instead ranges are 200mV, 2V, 20V, 200V and 1kV.This alerted me to SDM3055X-E might equal SDM3045X and only the ranges were different due to different firmware and they may be calibrated as equals with just SW determining the model #.That China don't have SDM3045X further points to them having the same HW and as this seems so they are very likely to be calibrated equally.Another range switching data point might be needed to prove 3045X = 3055X-E beyond reasonable doubt.Unless evidence to the contrary arises I believe we can say these 2 models share the same HW and calibration procedures.

author: n3mmr
author_rank: Regular Contributor
timestamp: January 13, 2022, 07:43:31 am
content: Quote from: pcmihnea on January 12, 2022, 09:32:18 pmDid you mean the custom time base menu item?I couldn't find the custom timebase item in the 3055x-e fw.One more thing is that, not being conversant with chinese ideography, I cant read the included revision history.

author: pcmihnea
author_rank: Contributor
timestamp: January 13, 2022, 09:03:26 am
content: Quote from: n3mmr on January 13, 2022, 07:43:31 amI've always assumed the "Add the customer sensor support" feature reffers to the "Custom Sensor" menu present in temperature measurement mode, where you can define the sensor's LUT - it's on the bottom row, fifth one.

author: pcmihnea
author_rank: Contributor
timestamp: January 13, 2022, 09:06:53 am
content: Quote from: tautech on January 13, 2022, 02:09:56 amIt's seems even some calibration points are multiples of 2, not 6 (https://siglentna.com/wp-content/uploads/dlm_uploads/2019/05/SDM3045X_ServiceManual_SM06034-E02C.pdf)

author: tautech
author_rank: Super Contributor
timestamp: January 13, 2022, 09:19:02 am
content: Quote from: pcmihnea on January 13, 2022, 09:06:53 amGood sleuthing Sherlock !Amps and Capacitance on P12.Check out the western SDM3055 manual, pages 11 and 12.https://int.siglent.com/u_file/document/SDM3055_ServiceManual_SM06035-E01C.pdfAlmost identical spec.

author: Ringmodulator
author_rank: Regular Contributor
timestamp: January 13, 2022, 02:06:45 pm
content: How would be the steps to revert from a hacked 3055X-E back to the 3045X?Chris

author: tv84
author_rank: Super Contributor
timestamp: January 13, 2022, 03:45:45 pm
content: Quote from: Ringmodulator on January 13, 2022, 02:06:45 pmI have to make the reverse patch...

author: Ringmodulator
author_rank: Regular Contributor
timestamp: January 13, 2022, 05:35:21 pm
content: Quote from: tv84 on January 13, 2022, 03:45:45 pmMaybe, my question was not clear enough.If I hack my 3045X to the 3055X-E with the modified 3055X-E firmware and for some reason want to revert to the 3045X, what are the steps?Is it sufficient to simply install the normal (unmodified) 3045X firmware update?Chris

author: tv84
author_rank: Super Contributor
timestamp: January 13, 2022, 08:50:36 pm
content: Quote from: Ringmodulator on January 13, 2022, 05:35:21 pmYour question was clear, my answer seems not.You can only flash a 3045X FW again if I change its ProdID previously. If not, the machine will reject the FW package.

author: Kleinstein
author_rank: Super Contributor
timestamp: January 13, 2022, 09:27:34 pm
content: If the hacked 3055 FW has the 3045 ID to run on the 3045, it could well work with just a normal firmware update to the original 3045. We don't know the details and thus the rather good question on how to get possibly back, just in case (e.g. if you want to sell the meter).It may work with the original FW, or it may need a slightly patched one.Another similar question is, if there is a future SDM3055 FW update, how to apply this to the hacked meter ?

author: tautech
author_rank: Super Contributor
timestamp: January 13, 2022, 09:44:44 pm
content: Quote from: Kleinstein on January 13, 2022, 09:27:34 pmHopefully just install the new 3055X-E version:https://www.siglent.com/download/firmware/?ProId=25

author: tv84
author_rank: Super Contributor
timestamp: January 13, 2022, 09:49:30 pm
content: If it is "hacked" you can only install 3055X-E FW as tautech said.Edit: Here is the reversing instruction.

author: et328
author_rank: Contributor
timestamp: January 14, 2022, 04:00:54 am
content: Quote from: tautech on January 13, 2022, 09:44:44 pmThat link is not working for me, first the page changes to int.siglent.com main page and then towww.siglenteu.com.

author: tautech
author_rank: Super Contributor
timestamp: January 14, 2022, 06:24:29 am
content: Quote from: et328 on January 14, 2022, 04:00:54 amThat's what some browsers do.Go back to the int.siglent.com page and select the Chinese website from the globe pop down in the top right corner.The current 3055X-E firmware is linked a page or 2 back in this thread and it downloads to your browsers download folder.

author: et328
author_rank: Contributor
timestamp: January 14, 2022, 06:35:39 am
content: Quote from: tautech on January 14, 2022, 06:24:29 amStill doesn't work properly i.e. switch to Chinese. Your direct link for the firmware file does work. I have tried Edge, Chrome, Firefox all have the same issue.But after some trying I noticed if I use the url below, I can get directly to the Chinese site and can browse there to the SDM3055X-E page and from there to the firmware page.https://www.siglent.com/?l=1

author: tautech
author_rank: Super Contributor
timestamp: January 14, 2022, 07:05:55 am
content: Quote from: et328 on January 14, 2022, 06:35:39 amWorks fine with Chrome here so must be browser settings redirecting you......a reason why I never let them auto translate but instead manually translate anything I can't read.The Chinese Siglent website used to be notorious for redirecting you to an English version however none of them show the juicy new products that are coming our way.Quote

author: n3mmr
author_rank: Regular Contributor
timestamp: January 14, 2022, 09:02:08 am
content: Quote from: tv84 on January 13, 2022, 09:49:30 pmThank you!Can you give a one-liner explanation of what the patch does?Could it be that it describes a set of criteria for its suitability?

author: tautech
author_rank: Super Contributor
timestamp: January 14, 2022, 09:34:17 am
content: Quote from: n3mmr on January 14, 2022, 09:02:08 amYes, the FW version must match the HW and the OS checks if the FW version is the correct one. The patch fools the OS to believe the FW version is correct so it then goes on to load it.

author: et328
author_rank: Contributor
timestamp: January 14, 2022, 09:39:57 am
content: What about product id in the system info page? It still shows 3045. Were the .xml files uploaded here not the correct ones for tv84 to make a patch for it?

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 14, 2022, 09:43:59 am
content: Quote from: et328 on January 14, 2022, 09:39:57 amMy XML files are probably useless, as if you open them, you will see no information about the model number, thus it has to be stored somewhere else.

author: et328
author_rank: Contributor
timestamp: January 14, 2022, 09:47:03 am
content: Quote from: Pinkus on January 14, 2022, 09:43:59 amI think tv84 asked for file named NSP_system_info.xml and that was not in your zip. How do you access your 3045's file system? (I haven't connected it to usb or network.)

author: Ringmodulator
author_rank: Regular Contributor
timestamp: January 14, 2022, 10:01:02 am
content: Quote from: et328 on January 14, 2022, 09:47:03 amSee my post in the main SDM thread:https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg3346192/#msg3346192There is also the info on how to backup the calibration data.Credit for the ADS file is due to tv84Chris

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 14, 2022, 04:07:30 pm
content: OK, here are the files from the other directory including NSP_system_info.xml.Though there is just a serial # in there (I changed the last numbers into '0' as probably not important).This Zip also includes the calibration data. It shows that indeed the calibration borders are "2" and not "6", thus there should be no problem by using the 3055x-e firmware.

author: tv84
author_rank: Super Contributor
timestamp: January 14, 2022, 04:13:20 pm
content: Quote from: Pinkus on January 14, 2022, 04:07:30 pmExactly. Thanks for sharing.So, the the model name needs to be changed in the NSP_trends_config_info.xml.To be totally correct it would be good to see this file content in an official 3055X-E.

author: dl6lr
author_rank: Frequent Contributor
timestamp: January 14, 2022, 04:23:25 pm
content: Quote from: tautech on January 14, 2022, 06:24:29 amNo, the redirect is what the server sends. This may be based on UserAgent settings or similar, but it is never a browser decision. The browser decision is to either display the error or follow the redirect. You can clearly see this in my wget trace.

author: pcmihnea
author_rank: Contributor
timestamp: January 14, 2022, 05:19:48 pm
content: Quote from: Pinkus on January 14, 2022, 04:07:30 pmHow can you get filesystem access and/or telnet on the dmm?

author: Pinkus
author_rank: Frequent Contributor
timestamp: January 14, 2022, 05:26:58 pm
content: All information are here:https://www.eevblog.com/forum/testgear/hacking-the-siglent-sdm3055/

author: pcmihnea
author_rank: Contributor
timestamp: January 16, 2022, 09:57:24 pm
content: Quote from: Pinkus on January 14, 2022, 05:26:58 pmI've tested post #14 from linked thread on a SDM3045X with latest v5.01.01.07R1, with a 4GB FAT32 clean USB stick, but couldn't get past step 2 - any TCP connection on standard telnet port 23 is refused, while on the other open ports (111, 732, 5025) they drop instantly.Any hints are greatly appreciated.

author: Ringmodulator
author_rank: Regular Contributor
timestamp: January 17, 2022, 06:18:53 am
content: Quote from: pcmihnea on January 14, 2022, 05:19:48 pmSee my post in the main SDM thread:https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg3346192/#msg3346192There is also the info on how to backup the calibration data.Chris

author: pcmihnea
author_rank: Contributor
timestamp: January 17, 2022, 08:53:17 am
content: Quote from: Ringmodulator on January 17, 2022, 06:18:53 amOk, thanks.Tried the attached FW file, but any flashing attempts results in 'update failed'... Are there any special steps to be taken for flashing - especially since the unit may see it as a version downgrade?

author: Ringmodulator
author_rank: Regular Contributor
timestamp: January 17, 2022, 12:30:48 pm
content: Quote from: pcmihnea on January 17, 2022, 08:53:17 amJust ignore the errormessage and dont reboot.Simply telnet the unit at the specified port.It helps to have notet the IP of the unit first.After reboot, the unit is back to its normal state.There is nothing really installed by this ADS file.Chris

author: pcmihnea
author_rank: Contributor
timestamp: January 17, 2022, 01:32:36 pm
content: Quote from: Ringmodulator on January 17, 2022, 12:30:48 pmAh, now that's a clever hack!As I've now have backups of my calibration files, I've succesfully flashed the SDM3055X-E patched FW, and it seems to still be in spec with a calibrated voltage source (0.01% on DC voltage), so it still has (at least) that measurement calibrated - I don't have any other precise references to test...As noted by previous posters, the device shows as SDM3045X. Also, new features added to the 3045X are not (yet) present on the 3055X-E FW, most notably the custom temperature sensor (and I assume the bugfixes, as well).

author: Ringmodulator
author_rank: Regular Contributor
timestamp: January 17, 2022, 03:34:45 pm
content: Quote from: pcmihnea on January 17, 2022, 08:53:17 amI am still curious, if the suggested "reverse hack" from tv84 really works. Afaik, he does not have the unit himself:https://www.eevblog.com/forum/testgear/siglent-sdm3045x-enough-is-enough/msg3938767/#msg3938767If you would try this, I would be interested in the result.The device name is defined in NSP_trends_config_info.xmlChris

author: n3mmr
author_rank: Regular Contributor
timestamp: January 17, 2022, 04:09:01 pm
content: Quote from: Ringmodulator on January 17, 2022, 03:34:45 pmIf you're asking about getting back to being an SDM3045X, yes. It works, as does the hack to make the SDM3045X be an SDM3055X-W.

author: tv84
author_rank: Super Contributor
timestamp: January 17, 2022, 04:33:18 pm
content: Quote from: Ringmodulator on January 17, 2022, 03:34:45 pmAs the other 99% devices I talk about...

author: pcmihnea
author_rank: Contributor
timestamp: January 19, 2022, 10:49:16 am
content: Quote from: n3mmr on January 17, 2022, 04:09:01 pmCan confirm as well, using the patched 3045X and 3055X-E firmwares, I can go between them (3045->3055, 3055->3045) without any issues.

author: mushroom
author_rank: Regular Contributor
timestamp: August 26, 2022, 05:16:38 pm
content: I confirm it does work, 3045X to 3055X-E and 3055X-E to 3045X.Thanks.BTW, a cal backup before the "updates" didn't hurt. Who knows...https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg3346192/#msg3346192Now building poor man's Kelvin-ish probes.

author: jimjam
author_rank: Regular Contributor
timestamp: February 02, 2023, 03:49:12 am
content: Quote from: eloso on December 31, 2021, 12:10:45 pmThat does sound very annoying. Does this happen with SDM3055?

author: tautech
author_rank: Super Contributor
timestamp: February 02, 2023, 05:21:07 am
content: Quote from: jimjam on February 02, 2023, 03:49:12 amNo.Please do your homework and compare datasheets to see the measurement range differences between 45X and 55 models.Then study the whole thread where it has been proven the Chinese 55X-E is the same HW as western 45X which can be converted to a 55X-E to not have the annoying range issues 45X has.

author: eloso
author_rank: Regular Contributor
timestamp: February 02, 2023, 09:43:11 am
content: I was the OP on the thread, feeling somewhat aggrieved by the switching behaviour at 2V of the SDM3045 even with a manual range setting. i.e. set it to 20V manual range, and measure a voltage of 1.5V everything is normal and the measurement appears on the screen quickly. Measure 2.5V and there is a pause, a click as a relay flips over and then eventually a reading appears.Folk seem happy to resolve this by flashing firmware from a different model and they also seem happy with the results. I was not happy with that solution to the problem and I contacted Siglent through the normal channel some 6 months after purchase when I was particularly unhappy at some results I was getting using logging (another reason why having some kind of automatic range switch when in a manual range is absolutely barmy). I really shouldn't have left it so long and I was not expecting much of a response. To their credit, I had an answer very quickly from a senior figure in Siglent. Flashing different firmware was not a solution but Siglent could not have been more supportive.I now have an SDM3055 which I should have purchased in the first place (they aren't much more cash than the 3045) and overall I am pleased with it.I have read some criticism of Siglent by folk feeling let down by unresponsive Siglent support. I can only comment with any authority on my own experiences and for me Siglent support has been nothing but good, and I have been left feeling pleased to be a Siglent customer both for this meter and for some other kit that I also have. Although not involvd with my particular case I also would commend the enthusiasm of our friend Tautech for his support, not just to his own Siglent customers but to folk all over the world through this forum and privately in the background. Well done !Eloso

author: MarkKn
author_rank: Contributor
timestamp: February 04, 2023, 03:05:32 am
content: My 3045 locked up again—simply measuring dc voltage and it locked in ‘overload’ power off and on resolved. Looking forward to some better firmware.

author: tautech
author_rank: Super Contributor
timestamp: February 04, 2023, 03:49:15 am
content: Quote from: MarkKn on February 04, 2023, 03:05:32 amWhat version are you on ?Latest is Version： V5.01.01.07R1Please confirm boot settings ? Default or Last ?For the last year or so every unit leaves here set to Last and as yet not been contacted by customers with boot problems. Something you might like to also try as if we can find settings that lead to freezes we have better info to give the SW engineers to provide a fix.

author: tomud
author_rank: Regular Contributor
timestamp: February 04, 2023, 05:33:24 am
content: Quote from: eloso on February 02, 2023, 09:43:11 amThere are sometimes no answers to reported bugs found in the software or questions about when to expect a fix for the software.Personally, I received a reply to one email, but not to the next e-mailQuoteJust looking at the fact that the last version of the software is from August 2021 and now we are in February 2023 is not a very comforting answer. Especially since the problem was reported a long time ago.Yes, this problem can be circumvented, but it does not change the fact that such errors should be corrected, and not searched for ways to circumvent them.

author: BillyO
author_rank: Super Contributor
timestamp: February 04, 2023, 03:43:42 pm
content: Did the problem exist in the previous version of the firmware?

author: bobt
author_rank: Newbie
timestamp: March 12, 2023, 12:02:01 pm
content: Hi,So, the SDM3055X-E firmware seems to work on the SDM3045.This tread did not answer me if it is a real improvement vs the original firmware other than issues around 2 volts ( relais clicking )Or Did I miss something?Thanks in advance,Bob

author: Pinkus
author_rank: Frequent Contributor
timestamp: March 12, 2023, 01:04:32 pm
content: Well it is now a 5.5 digit DMM instead of a 4.5 digit DMM. Function-wise the firmware is (afaik) identical.

author: Kleinstein
author_rank: Super Contributor
timestamp: March 12, 2023, 02:42:30 pm
content: The resolution and functions should be identical to the SDM3055, but the accuracy would still be lower as the hardware has a few cheaper parts. In addition the calibration can be a bit questionable after the FW change, as there are different ranges. Ideally one would compare it to some reference before and after the FW change to see if something goes wrong - I would not expect it, but better check.A big advantage with small voltages can be having a resolution of 1 µV in the 200 mV range compared to 10 µV in the 600 mV range. 10 µV resolution would work up to a little over 2 V.

author: tautech
author_rank: Super Contributor
timestamp: March 13, 2023, 06:49:36 am
content: Quote from: MarkKn on March 13, 2023, 01:35:15 amDetailed reply in the SDM3045X, 3055 and 3065X thread.https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg4752410/#msg4752410

author: bobt
author_rank: Newbie
timestamp: March 13, 2023, 01:08:50 pm
content: Quote from: Kleinstein on March 12, 2023, 02:42:30 pmbasically that is my main concern as I don't have access (yet) to any references..For now the dmm is 'upgraded', calibration saved and original firmware downloaded and changed if I want to go back to the original version.Thanks,Bob

author: MarkKn
author_rank: Contributor
timestamp: March 14, 2023, 01:09:53 am
content: Quote from: tautech on February 04, 2023, 03:49:15 amThank you for looking into this. I did not change the boot setting and it was set to factory. I changed it to last. I don't know what that setting does, but from your comment, I am interpreting that as a suggestion to boot from last to reduce problems. I note that it has booted without problems, and froze up later, but I am willing to try and see if that helps. Since the problem is intermittent, not sure of a way of knowing that its fixed...I did register the product with siglent and sent them an inquiry as to warranty service. On the siglent website I was looking at, I could not find anything listing the process for seeking repair under warranty. The email was to sales, but perhaps they will know where to forward it. I am in USA. I like the meter quite a bit in general, I have two of them, but this occasional locking up is concerning. I note that it has only been booted 23 times--I don't use it often.

author: tautech
author_rank: Super Contributor
timestamp: March 14, 2023, 02:21:38 am
content: Quote from: MarkKn on March 14, 2023, 01:09:53 amThis conversation belongs here where you can read my detailed reply and requests:https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg4753937/#msg4753937Please shift the conversation there.

author: bobt
author_rank: Newbie
timestamp: March 18, 2023, 04:40:47 pm
content: FYI,I have received a simple voltage reference... 2.5,5,7.5 and 10 volts measured exactly the same ( depending on the number of digits available ) for the 3045X and 3055X-E firmwares..Have not checked anything else yet but for sure looks promisingBob

author: jemarro12
author_rank: Contributor
timestamp: November 01, 2023, 07:12:39 pm
content: Hi, i´ve used described method to change fw to 3055x-e and then reverted back to 3045x-e and it works flawlessly. No differences in measure (apart from 1+ digit).When 'hacked' to 3055x-e no problem updating new firmware (as SDM3055X-E_2.01.01.15R1).I´m really glad to tv84 and all of u guys for the effort!!Sould be able to open telnet when hacked to sdm3055x-e?? i´m only able to telnet when using telnet_SDM3045X.ads. This fw is only usable when prodID is 3045x (can´t use telnet over sdm3055x-e)Thanks!!

author: WimV
author_rank: Newbie
timestamp: February 05, 2024, 07:35:48 pm
content: Is it only possible to go from SDM3045X to SDM3055S-E or can I also go to SDM3055? I ask so because the frimware of SDM3055 has evolved much further than that of SDM3055X-E. thx in advance.

author: KungFuJosh
author_rank: Super Contributor
timestamp: February 05, 2024, 08:39:06 pm
content: Quote from: WimV on February 05, 2024, 07:35:48 pmNot likely, they're different hardware. The SDM3045X and the SDM3055X-E are the same hardware. There's a dedicated thread now for the upgrade:https://www.eevblog.com/forum/testgear/sdm3045x-to-sdm3055x-e-improvement-thread/msg5051191/#msg5051191I own both the SDM3055X-E upgraded DMM, and the SDM3055. They're both great, and I don't feel like I'm missing anything switching between the 2 (except the fan noise).

author: Kleinstein
author_rank: Super Contributor
timestamp: February 05, 2024, 09:32:57 pm
content: The hardware for the SDM3045/SDM3055S-E is slightly different from the full SDM3055. However the difference is with the accuracy of parts (more stable divider and reference) and may very well not effect the firmware side. So the same firmware should run on both. The E version is a cheaper version with reduced accuracy, but the same ranges.

author: McCarthy
author_rank: Contributor
timestamp: March 12, 2024, 06:11:08 am
content: Can the SDM3055 be modded to a SDM3065X?

author: tautech
author_rank: Super Contributor
timestamp: March 12, 2024, 06:12:57 am
content: Quote from: McCarthy on March 12, 2024, 06:11:08 amNo.However ....https://www.eevblog.com/forum/testgear/hacking-the-siglent-sdm3055/

author: phantom
author_rank: Contributor
timestamp: October 29, 2024, 09:25:07 am
content: Hi to all, i would like to buy and mod a 3045x to 3055xis it still possible?what i need?thank you very much for your help!

author: KungFuJosh
author_rank: Super Contributor
timestamp: October 29, 2024, 02:55:49 pm
content: Quote from: phantom on October 29, 2024, 09:25:07 amIf it's still possible depends on which hardware version you have, and if there's an available firmware for it or not. The thread for the upgrade is here:https://www.eevblog.com/forum/testgear/sdm3045x-to-sdm3055x-e-improvement-thread/

author: WimV
author_rank: Newbie
timestamp: March 12, 2025, 08:06:42 pm
content: I must be doing something wrong. update fail, with any usb stick....

author: tautech
author_rank: Super Contributor
timestamp: March 12, 2025, 08:11:49 pm
content: Quote from: WimV on March 12, 2025, 08:06:42 pmSDM3045X ?What update and from what source ?

author: KungFuJosh
author_rank: Super Contributor
timestamp: March 12, 2025, 11:56:25 pm
content: Quote from: WimV on March 12, 2025, 08:06:42 pmDid you follow the directions, and do the hex code edit?If you are certain you followed directions, and you have a newer unit, it might not work for you.

author: WimV
author_rank: Newbie
timestamp: March 13, 2025, 08:21:55 am
content: Thanks for sharing your thoughts. I changed the file as described with HxD edit, savec the file on a USB stick (tried 4 different ones, one was not recognised), did the firware update routine, and then it gives update fail. My unit is from early 2023.If this doesn't work, is there a new procedure possible?

author: WimV
author_rank: Newbie
timestamp: March 13, 2025, 08:26:59 am
content: file is SDM3055X-E_2.01.01.12.ADSMy unit has firmware version 09RHardware version is 03-00-00-05-00

author: KungFuJosh
author_rank: Super Contributor
timestamp: March 13, 2025, 02:27:54 pm
content: There's more discussion here:https://www.eevblog.com/forum/testgear/sdm3045x-to-sdm3055x-e-improvement-thread/Personally, I would try the smallest flash drive you can find formatted FAT or FAT32.I'd also try a different hex editor to edit the file.What's the full version of the FW currently on your meter?

author: WimV
author_rank: Newbie
timestamp: March 13, 2025, 03:12:46 pm
content: Hi, the full version is 5.02.01.09R2, So I'm affraid it won't work. Thanks anyhow. I will have to wait for new updates. Thanks for you great works you all.