BK2190E Oscilloscope Stay in the on screen. - Page 1
Forum section: electronics / testgear

author: E_Sosa
author_rank: Newbie
timestamp: September 08, 2022, 11:53:21 pm
content: Hello EverybodyI work in a school and we have 3 BK2190 oscilloscopes that stay stuck in the on-screen. Is there a way to update the firmware or apply an hardware reset?I found this posthttps://www.eevblog.com/forum/repair/bk-precision-2190e-stuck-in-boot-screen/msg3647065/#msg3647065but it doesn´t work for me.Can somebody help me please?

author: tautech
author_rank: Super Contributor
timestamp: September 09, 2022, 12:54:07 am
content: Quote from: E_Sosa on September 08, 2022, 11:53:21 pmOnly with the recovery package listed in that thread.Read, understand and follow the PDF instructions exactly.2190E is a SDS1102CNL+ but at glance the BK recovery package appears identical to the CNL+ one from Siglent.Getting the USB stick configured correctly and it being 8GB or smaller is of highest importance for the recovery process to work.Try several 8GB or smaller USB sticks until you find the one that works. Those with an activity LED are most useful to see the files are being transferred over.There is also this:https://siglentna.com/operating-tip/oscilloscope-hardware-reset/

author: E_Sosa
author_rank: Newbie
timestamp: September 09, 2022, 10:34:32 pm
content: Thanks for your reply.I have formatted the usb in FAT32 mode and pasted the 3 files in the root, my usb is 1GB but hasn't LED. I'll try with another one.

author: E_Sosa
author_rank: Newbie
timestamp: September 09, 2022, 11:26:03 pm
content: Bad news!The USB doesn't turn the LED on.I think the oscilloscopes are beyond repair!

author: tautech
author_rank: Super Contributor
timestamp: September 10, 2022, 12:18:40 am
content: Quote from: E_Sosa on September 09, 2022, 11:26:03 pmMaybe not, we have some other tools.When I have some spare time I can contact you to get your email and we'll try another line of attack !

author: dtex
author_rank: Newbie
timestamp: September 22, 2022, 07:11:17 pm
content: Hello. I've got two 2190e scopes that have this same issue as E_Sosa posted above. I've tried the USB drive with the recovery_by_USB_driver files, and have also tried the method of pressing MATH repeatedly upon power up, both to no avail. If any of you have other tips, I would be excited to hear them. Thanks!

author: tautech
author_rank: Super Contributor
timestamp: September 22, 2022, 09:16:12 pm
content: Quote from: dtex on September 22, 2022, 07:11:17 pmWelcome to the forum.The USB stick and how it's configured is the key to success.It must be max 8GB, formatted in FAT32 4k clusters and suitable for bootable application.The recovery files must also be in the root of the drive.Multiple attempts are sometimes required as is using a different USB stick.

author: dtex
author_rank: Newbie
timestamp: September 27, 2022, 07:23:58 pm
content: Thanks tautech. I'll give a few more usb sticks a try. I've tried two so far to no avail, both 8GB, both formatted to be FAT32 and both with the recovery files in the root of the USB stick. I've got a few more sticks I can try.

author: tautech
author_rank: Super Contributor
timestamp: September 27, 2022, 07:27:04 pm
content: Quote from: dtex on September 27, 2022, 07:23:58 pmIdeally you want a stick with an activity LED to see the files being transferred over then give it some time to rebuild the OS before it can continue on to boot.It should be quick but not instant so give it time to do its thing.

author: dtex
author_rank: Newbie
timestamp: October 27, 2022, 05:48:20 pm
content: Life got busy so it took me a while to get back to this. Trying several different USB sticks helped. After trying several USB stickss (all <8GB) I found an old 256MB stick and that finally worked... for one of my two frozen scopes. The other scope does not respond in any way to the recovery USB stick in that the USB stick shows no activity at all when plugged in. I'm going to try the USB-B on the rear of the oscilloscope once I receive a USB-A to USB-B adapter. Will report back after that's done.Thanks for the suggestions!

author: tautech
author_rank: Super Contributor
timestamp: October 28, 2022, 01:37:00 am
content: Quote from: dtex on October 27, 2022, 05:48:20 pmGood, you got one working.Is there any chance the other is older and was running on an older firmware version ?We may need to use a different recovery process.

author: slbender
author_rank: Regular Contributor
timestamp: October 28, 2022, 08:41:30 pm
content: Slightly off topic, but might be useful. I have a B&K 2190 completely different earlier unit, but the soldering was so bad - one channel blew a dual mosfet at the input. Also some of the board interconnector’s pins pulled right out of the board connectors - probably this set escaped being inspected before it was packed in the box.Steven

author: dtex
author_rank: Newbie
timestamp: November 04, 2022, 07:41:15 pm
content: It is possible that one has older firmware than the other. I purchased two batches of these oscilloscopes, separated by about a year. I don't know which batch each of these oscilloscopes came from.What would this different recovery process entail? Is there any harm to trying it?

author: tautech
author_rank: Super Contributor
timestamp: November 04, 2022, 07:44:43 pm
content: Quote from: dtex on November 04, 2022, 07:41:15 pmOpening it. No harm at all but the process is more complex.Continue with email.

author: dtex
author_rank: Newbie
timestamp: November 04, 2022, 08:30:35 pm
content: PM sent with contact info. Thanks!

author: arnoudvh
author_rank: Newbie
timestamp: September 29, 2023, 04:40:10 pm
content: The reset worked for me! Great! Of course... after I disassembled the whole scope to check all wire connections, etc... (hw guy...)I guess I should update the firmware - or is that going to risk another boot-up hang?

author: tautech
author_rank: Super Contributor
timestamp: September 29, 2023, 06:29:20 pm
content: Quote from: arnoudvh on September 29, 2023, 04:40:10 pmWelcome to the forum.FW updates never brick scopes.If you used the latest USB recovery method you should already have the latest FW version installed, V6.01.01.25

author: arnoudvh
author_rank: Newbie
timestamp: September 29, 2023, 09:30:29 pm
content: I actually have the BK 2190D- where can I find the latest firmware for that? I have 5.01.02.22R5.Thx!!

author: tautech
author_rank: Super Contributor
timestamp: September 29, 2023, 11:27:48 pm
content: Quote from: arnoudvh on September 29, 2023, 09:30:29 pmBK would be your first port of call.

author: arnoudvh
author_rank: Newbie
timestamp: September 30, 2023, 03:38:54 am
content: I forgot to mention that the BK site doesn't list Firmware - neither for D or E model - links:https://www.bkprecision.com/products/discontinued/2190dhttps://www.bkprecision.com/products/oscilloscopes/2190EKind of strange.But I saw you mention (in this post:https://www.eevblog.com/forum/testgear/bk2190e-stay-in-the-on-screen/msg4406332/#msg4406332:~:text=Siglent%20Distributor%20NZ.-,Re%3A%20BK2190E%20Oscilloscope%20Stay%20in%20the%20on%20screen.,-%C2%AB%20Reply%20%231)that:"2190E is a SDS1102CNL+ but at glance the BK recovery package appears identical to the CNL+ one from Siglent."So I was wondering if anybody knows if there is also a package at for the BK 2190D in there:https://siglentna.com/service-and-support/firmware-software/digital-oscilloscopes/Thanks!

author: tautech
author_rank: Super Contributor
timestamp: September 30, 2023, 07:10:56 am
content: BK D model has 40kPts mem depth which makes it equivalent to older CNL models (without LAN) for which there is no recent firmware.

author: arnoudvh
author_rank: Newbie
timestamp: May 15, 2024, 01:00:48 pm
content: Repeatedly pushing the MATH button during power-up worked for me (after a few tries).

author: cujo31
author_rank: Newbie
timestamp: June 23, 2024, 11:48:51 pm
content: I also have this issue with my 2190E. The Math button method didn't work for me. I have also tried several different USB drives ranging from 512MB - 8GB, but the USB port doesn't appear to have power. Tautech, if you have any other tricks up your sleeve, I'd appreciate the help.

author: tautech
author_rank: Super Contributor
timestamp: June 24, 2024, 06:34:55 am
content: Quote from: cujo31 on June 23, 2024, 11:48:51 pmCheck your messages.

author: bpottle
author_rank: Newbie
timestamp: October 13, 2024, 08:34:20 pm
content: Good day! I turned on my 2190E for the first time in around 6 months and found it hung on the boot screen like others noted. I used the flash drive method with the recovery files, and now it moves past the boot screen, but none of the buttons or dials are working, nor will it display any activity on channels 1 or 2.Strangely, it does recognize when a USB device is removed or inserted; it makes a sound and the notification appears on the screen.Any ideas on what could work? I’ve tried the Math button approach, and a few different flash drives formatted to FAT32 with 4k clusters, ranging from 1GB to 2GB in size.

author: tautech
author_rank: Super Contributor
timestamp: October 13, 2024, 09:38:13 pm
content: Quote from: bpottle on October 13, 2024, 08:34:20 pmWelcome to the forum.Exactly what flash drive method and from where/whom ?

author: bpottle
author_rank: Newbie
timestamp: October 13, 2024, 10:43:53 pm
content: Hi Tautech,On one of the posts was a link to the .zip file entitled “2190E_recovery_by_USB_driver”; I downloaded this and followed the pdf’s instructions included in the .zip file, and further followed your suggestions in the comments (on trying different USB drives 8GB or under).Thank you!Brian

author: tautech
author_rank: Super Contributor
timestamp: October 13, 2024, 10:57:29 pm
content: Quote from: bpottle on October 13, 2024, 10:43:53 pmWhich on further investigation is different to what I have here.Taken to PM