Digitech QC1932 Digital Storage Oscilloscope (Siglent SDS1000A) Stuck on bootup. - Page 1
Forum section: electronics / repair

author: RobinPR
author_rank: Contributor
timestamp: November 02, 2024, 01:55:32 pm
content: Hi, My first post. I am a Retired 72 year old Electrician\Electronics Tradesman.. Bought a used digital scope thinking i could fix it, but think it is a stuck in bootup fault and probably need to reflash and can't seem to find any files needed.I have tried constantly pressing the Math buttton on statup but does not help. Have taken the back off and seen it is a Siglent board inside, has no serial port but does have a micro sd card holder. Always wanted a digital scope, and would love to bring it back to life. Any help will be greatly appreciated. Thankyou.

author: Harry_22
author_rank: Frequent Contributor
timestamp: November 02, 2024, 03:31:07 pm
content: Hello!First you need to look through the boot sequence.Seems that J11 is a diagnostic USB connector.Connect only Rx, Tx and GND but check it first for GND position.Here you can see some additional information with Google translator:https://vlab.su/viewtopic.php?f=170&t=106767PSAll questions are welcome!

author: coromonadalix
author_rank: Super Contributor
timestamp: November 02, 2024, 07:34:39 pm
content: maybe Tautech member here can help send him a pm

author: tautech
author_rank: Super Contributor
timestamp: November 04, 2024, 06:58:33 am
content: RobinPR7" display ?500 MSa/s and LAN suggests it's a SDS1000DL+......initially thought SDS1000CNL+ but they are 1 GSa/s and never were offered in low BW.We have recovery packages for these.

author: tautech
author_rank: Super Contributor
timestamp: November 04, 2024, 08:08:37 am
content: Siglent HQ kindly searched the SN# and confirmed it is SDS1022DL+ for which we have recovery methods.RobinPR, send me PM with your email address.

author: RobinPR
author_rank: Contributor
timestamp: May 27, 2025, 12:34:06 pm
content: Hi, Never got to try repair before, had 2 major health scares and was last thing on my mind. Can't find anything you sent before and can't remember any details. Now i am in a better frame of mind i would like to try again to resurrect it. Could you please send me the necessary files and instructions to try and fix my scope. Thanking you in anticipation.Email:robray11@bigpond.com

author: tautech
author_rank: Super Contributor
timestamp: May 27, 2025, 08:18:49 pm
content: Quote from: RobinPR on May 27, 2025, 12:34:06 pmMy Outbox indicates I sent you mail 5 Nov 2024, check your Spam/Junk folder.....

author: RobinPR
author_rank: Contributor
timestamp: June 17, 2025, 01:38:25 pm
content: Hi, Found the 3 files you sent me, and tried with several different usb sticks and different formats, just nothing happens. Got an Arduino UNO and connected to J11 Tx, Rx, Gnd and in Arduino IDE monitor mode recieved the data i have attached in the text file. just not smart enough to figure out what it is telling me. At least i can see it trying to boot, getting stuck loading the Kernel. Any ideas to help would be appreciated. Thanks.

author: tunk
author_rank: Super Contributor
timestamp: June 17, 2025, 05:17:31 pm
content: Seem to remember that some older scopes doesn't likelarge memory sticks. Do you have some old 1GB or 2GBsticks you could try? Don't know if it will work, but youcould try to format some larger sticks with 1GB.

author: RobinPR
author_rank: Contributor
timestamp: June 18, 2025, 12:13:03 am
content: Hi, Thanks for answering, i found a 1gb usb stick but still same result, dont think it is looking at the usb at all.

author: tautech
author_rank: Super Contributor
timestamp: June 18, 2025, 01:43:03 am
content: Quote from: RobinPR on June 18, 2025, 12:13:03 amWe know it's a SDS1022DL+ which should recover via USB as IIRC all DL+ firmware versions supported such.Looking back in the release notes of 2016 they fixed a bug that could lead to the boot freeze you have which might indicate yours has the earlier firmware.You might need the SD card recovery package which is a little complex and requires some disassembly.If you are up to that reply to my email and I'll flick it to you.

author: RobinPR
author_rank: Contributor
timestamp: June 18, 2025, 04:46:59 am
content: Hi, Thanks for replying, I have actually got the back off and tried a 1gb micro sd card in the slot but just using the same 3 files you sent, and no different results, behaves the same whether using front usb or rear sd card or nothing at all. Definetly like to try something else.. Thankyou for your assistance, hate to be beaten until nothing else to try..

author: tautech
author_rank: Super Contributor
timestamp: June 18, 2025, 06:57:46 am
content: Quote from: RobinPR on June 18, 2025, 04:46:59 amThat's why they are called USB recovery files.....hopefully you did no further SW damage.Email me for the SD card recovery files, this time it won't end up in your Spam folder.

author: RobinPR
author_rank: Contributor
timestamp: June 20, 2025, 07:35:41 am
content: Hi, Well still no go, tried an 8gb and a 2gb micro SD card with the files after formatting. Seems it ignores the USB and just repeatably runs whats on the nand, maybe the guy i bought it off was smarter than i thought. Is there any way to get it to look at the USB or SD card. Thanks for your help , seems like a tough one, maybe end of the line..

author: tautech
author_rank: Super Contributor
timestamp: June 20, 2025, 07:45:27 am
content: Quote from: RobinPR on June 20, 2025, 07:35:41 amDid you solder on the required links ?This sets the data path to the SD card socket.The mention of positive and negative refers to top side or bottom side of the mainboard PCB.

author: RobinPR
author_rank: Contributor
timestamp: June 20, 2025, 01:16:12 pm
content: Hi, No do not know about soldering any links, but was hoping there might be something like that or using a jumper somewhere. Might need you to tell me where to find them. Thanks, still some hope then..

author: tautech
author_rank: Super Contributor
timestamp: June 20, 2025, 09:15:36 pm
content: Quote from: RobinPR on June 20, 2025, 01:16:12 pmSee section 12 in the instructions PDF:12) Short connecting the ZR85 to change the boot sequenceStudy carefully to identify the #'s on the PCB and apply the solder links as directed.

author: RobinPR
author_rank: Contributor
timestamp: June 25, 2025, 04:04:43 am
content: Hi, Followed your instructions properly this time and voya , got it working, everthing looked and seemed perfect, but when trying with a probe connected to the calbration pont, discovered no input at all, even though the calibration point is working ok. upon further testing connected to a function generator with sine, triangular and square wave still nothing checked probe and even changed to another probe but same result.have tried every calibration and reboot test etc but no better. Inspected the main board and found nothing obvious, voltages seemed ok 5v, 3.3v every function seems to set up ok but always no input detected. Green led on mainboard still has a double flash constantly, but not sure if that means ok or a fault. It looks great but thats all. Any ideas would be appreciated, but thanks for your help, got it back to life anyway, and that was a miracle anyhow.

author: tautech
author_rank: Super Contributor
timestamp: June 25, 2025, 06:53:47 am
content: Access Utility> System Info and report the SW/FW version installed with the recovery process.It should be Version： V6.02.01.13You can get the latest version here:https://int.siglent.com/download/firmwares/?ProId=42Have you looked through the Service manual, this one is for CNL+ models so almost identical guts:https://siglentna.com/download/2710/?tmstv=1750834264I guess you tried both channels but you didn't say.

author: RobinPR
author_rank: Contributor
timestamp: June 26, 2025, 10:20:28 am
content: Hi, Yes i did try both channels and acted the same, no signal..I repeated the complete recovery procedure thinking i may have messed up somewhere but acted just the same, did several self calibrations, upgraded firmware, tried other probes. Every functiom seems to work but just no measuring ability. Tried hooking channel 1 and channel 2 to the calibration point and nothing on screen. Tried my function generator with i 1khz sine , triangular and square waves still no signal. No certain whether that can be turned off in software or is it a case of some damaged chip or component on the board although there is absolutely no physical signs of any damage anywhere. Looks like i may have to slowly trace my way back through the input path, when i have time, my wife wants her kitchen table back.. hahah.Thanks heaps for your expert help and knowledge. at least it looks very pretty when turned on.

author: coromonadalix
author_rank: Super Contributor
timestamp: June 26, 2025, 07:27:15 pm
content: self calibration, no probes nothing connected ? it's important

author: tautech
author_rank: Super Contributor
timestamp: June 26, 2025, 11:14:26 pm
content: Quote from: RobinPR on June 26, 2025, 10:20:28 amDid you complete the CFG update via USB stick ?Section 18 in the SD card recovery instructions.For this stage the SD card needs be removed.

author: tautech
author_rank: Super Contributor
timestamp: June 27, 2025, 12:48:50 am
content: From your image we can now see the Product Type is wrong.It should be SDS1022DL+ or a higher BW model, maybe SDS1052DL+We know and it has has been conformed by Siglent this is a DL+ model and OP pics show the LAN socket which also confirms it's a + model.This could be a CFG issue if that part of the recovery process was not done.

author: bingo600
author_rank: Super Contributor
timestamp: June 27, 2025, 05:42:24 am
content: @TautechJust wanted to say thank you , for your "Always excellent Siglent" support.Even on an older rebranded box .....Makes me even more happy , that i got a 2000+ scope./Bingo

author: tautech
author_rank: Super Contributor
timestamp: June 27, 2025, 06:58:46 am
content: Quote from: bingo600 on June 27, 2025, 05:42:24 amSome things just stare us in the face when conversant with a product/brand so I powered up a NIB SDS1052DL+ to double check how the Product Type was displayed already knowing Robin's pic gave the game away.I still think SDS2000X Plus is great bang for buck despite it not being the latest design or 12bit and they have certainly been our most popular 2000 series here in NZ.

author: RobinPR
author_rank: Contributor
timestamp: June 28, 2025, 01:39:34 pm
content: Hi, Next part of the saga is i keep getting "Updated Failed" message after going through the Update Cfg process. runs for about 4 seconds then the message pops up, have tried different USB sticks etc including crossing my fingers but seems to be yet another bump in the road. Do you think i might have to repeat the complete process from scratch using the recovery files on the sd card and shorting the solder pads again? I did notice a couple of times when i checked system status i t read Product Type SDS1022 even though it doesn't complete the update process, untill i get it back to the white Siglent in the upper left corner then when i check system status it now reads SDS102X again. Sorry being a pain... Thanks,,

author: tautech
author_rank: Super Contributor
timestamp: June 29, 2025, 12:54:30 am
content: Quote from: RobinPR on June 28, 2025, 01:39:34 pmThis suggests the CFG file is incompatible with your scope.If you don't do the CFG step, will the scope display a waveform ?

author: RobinPR
author_rank: Contributor
timestamp: July 03, 2025, 09:26:54 am
content: Hi, Yes updated the .cfg to DL+.cfg Software updated to (6.02.01.13) Still never sees any input on either channel, (No Signal) done the whole recovery another two times ,exactly per instructions, still the same. if i get into the Purple Siglent stage (Do Self Cal) (Cursors/Default Setup/Set to 50%/F5/Auto/Force )then check system status it shows product type as SDS1022 but when back in normal (Do Self Cal) ( 1x Default Setup/2x SaveRecall/ 3x Utility ) mode White Siglent it changes to read Product type back to SDS102X. The scope buttons all behaves normally (i think) just never sees any input signals. Almost as though it is turned off somehow. (FNIRSI-1014D Digital Scope is starting to look nice on line.)Thanks for all your help. (know anyone that needs a boat anchor)

author: tautech
author_rank: Super Contributor
timestamp: July 03, 2025, 10:40:23 am
content: Darn run outta ideas, sorry we didn't get a better result but we gave it our best.

author: tautech
author_rank: Super Contributor
timestamp: July 05, 2025, 02:30:58 am
content: Member and mate Muttley Snickers in Melbourne might have it on, he saved another different but similar Siglent model with boot freeze issues.I'll ping him to check if he's interested.

author: neofitou
author_rank: Newbie
timestamp: October 16, 2025, 11:47:41 pm
content: I have just been given the same model with the same initial problem of being stuck at the boot screen.I tried putting the latest firmware and the cfg I found in another post on a USB and it wont initiate the update, @Tautech, can I please PM you my email address and have you send me the SD card method?Thanks,Neo.

author: tautech
author_rank: Super Contributor
timestamp: October 18, 2025 12:36:01 am
content: Quote from: neofitou on October 16, 2025, 11:47:41 pmFlick an email to support@Siglent.com with the model and SN# asking for help.Carefully explain how you got to where you are and the exact problem.

author: neofitou
author_rank: Newbie
timestamp: October 18, 2025 08:40:54 am
content: Thanks! will do.