Author Topic: Uni-T UTD1050DL oscilloscope firmware dump needed (Read 6252 times)

Finderbinder · « **on:** September 10, 2021, 03:51:44 pm »

Hello,
I got this handheld oscilloscope new for cheep. When powering on, the SHIFT button turns green and display goes to a red Uni-T logo on black screen and then nothing happens/changes. I can power it off. When I connect it to a PC there is no reaction from PC side.
I suspect factory defect, but can't guarantee. Would want to reflash a NAND chip. Or/and SPI Flash. Measurements in some control points would be welcome also.
I may share photos of internals of the device.

Tappaja · « **Reply #1 on:** November 03, 2021, 07:52:59 am »

Hi,
did you moved forward?
Thanks
Roman

Finderbinder · « **Reply #2 on:** December 28, 2022, 10:02:29 pm »

Hello,
without changes. Dump still needed.

rlohmann · « **Reply #3 on:** June 06, 2023, 03:43:13 pm »

Hi,

I'm in a similare situaltion:
UTD1050DL no start,
only one button light up green,
not even the display gets on, in my case,

Poked around and found a uart on the 12 pin-connector "9J2":
Pin 9: 3V3
Pin10: GND
Pin11: TX
Pin12: RX (I guess)

With a FTDI adaptor (115.2kb) I can read:
CCCCCCCC
U-Boot SPL 2011.09 (Feb 27 2020 - 10:56:49)
Texas Instruments Revision detection unimplemented

U-Boot 2011.09 (Mar 20 2020 - 13:08:02)

I2C:

Checked I2C flash "8U6" (GD25Q80) but it's empty (all „FF“).

Maybe someone could help my with a dump of "8U6".

darkspr1te · « **Reply #4 on:** June 07, 2023, 07:19:55 am »

Looking at this board/layout I suspect 8U6 is calibration data or similar. The large flash next to it is where i suspect the main firmware lies.
As you have u-boot access see if a serial terminal will allow you to type "printenv" no quotes and see if it dumps the uboot environment.
you can also dump the flash to serial port this way too.
depending on the uboot build you may even be able to write the firmware via serial too
I also suspect that the two row connector next to 9LED2 (pic 3, bottom right ) is JTAG and with a device that runs uboot then it's no doubts for me.
Also if this is built like of uni-t scopes then it will have a DMM chip too in some way and they wont finish bootup until that DMM chip spits out it's initial values, I have tested this with a faulty uni-t 81B and a working one and the broken unit had no serial output from the dmm chip but the dmm chip still functioned (i could connect lcd to it's lcd output pins and that showed it working and displaying correct values)
I dont know what under the pads in the board pics but i will guess you will find a DMM Single chip solution that they use for basic value reading (non scope mode)

darkspr1te

rlohmann · « **Reply #5 on:** June 08, 2023, 07:57:48 am »

Hi darkspr1te,

thank for your feedback. I'll give "printenv" a try and keep you updated.
Maybe you could provide some instructions on how to dump the flash via serial.

Yes, I assume the DMM in in between the two DSO front-ends.
Will also check if I can find some kind of serial communication there.

Will also try to peel-off the thermal pads and get some IDs from the devices underneath.

Regards,

pindrei · « **Reply #6 on:** May 28, 2025, 07:47:31 pm »

Hello,
i have the same problem. But my output looks like this:

^{Terminal ready
CCCCCCCC
U-Boot SPL 2011.09 (Feb 27 2020 - 10:56:49)
Texas Instruments Revision detection unimplemented

U-Boot 2011.09 (Mar 20 2020 - 13:08:02)

I2C: ready
DRAM: 256 MiB
WARNING: Caches not enabled
Found a daughter card connected
SKU#01
Configurou interrupcao
zipCnt:1930
unzipCnt:76800
Configurou LCD
sizeof(image1) :307232
NAND: HW ECC Hamming Code selected
128 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1}

My display shown only a "loading" text. No Logo.
Maybe it is helpfull or somebody have a idea to find a way do verify my problem....

Pyati · « **Reply #7 on:** July 04, 2025, 03:52:10 pm »

Hello. I encountered this problem on the utd1050cl. It didn't start every time. I counted 50 times and saved it on my computer. Then I flashed the new memory one by one with each saved firmware using the Xgecu t56 programmer. On the fifth firmware, the oscilloscope started working. However, it's unclear how accurate it is. If anyone needs it, I can share it.

Pyati · « **Reply #8 on:** July 04, 2025, 03:55:28 pm »

maybe it will be useful to someone

r011 · « **Reply #9 on:** July 10, 2025, 11:03:01 am »

It would be nice if you can send me bin file
Thanks

SeagateAL · « **Reply #10 on:** October 12, 2025, 03:59:24 pm »

Hello, could you send me your oscilloscope firmware dump?

Messtechniker · « **Reply #11 on:** January 18, 2026, 10:26:43 am »

Quote from: Pyati on July 04, 2025, 03:52:10 pm

Hello. I encountered this problem on the utd1050cl.

The UTD1050CL given to me by a friend for repair is stuck at "System loading ...." with green SHIFT button.
So the next thing I will have to do is to get a FTDI adaptor.

SeagateAL · « **Reply #12 on:** February 06, 2026, 12:50:32 pm »

If you can, please make a dump nand from your device and share it with me.

Messtechniker · « **Reply #13 on:** February 06, 2026, 06:19:26 pm »

Sorry, in the mean time I returned the unit to my friend giving
him the UNI-T address for repairs in Europe.
Since I am basically an analogue electronics guy, such a repair is way
beyond the equipment and digital abilities I have.

SeagateAL · « **Reply #14 on:** February 08, 2026, 06:34:25 pm »

If the device is repaired, ask your friend to make a dump nand. I really need it to repair my device.
repaired device

KACZANUK · « **Reply #15 on:** March 22, 2026, 05:02:20 am »

Quote from: Pyati on July 04, 2025, 03:52:10 pm

Hello. I encountered this problem on the utd1050cl. It didn't start every time. I counted 50 times and saved it on my computer. Then I flashed the new memory one by one with each saved firmware using the Xgecu t56 programmer. On the fifth firmware, the oscilloscope started working. However, it's unclear how accurate it is. If anyone needs it, I can share it.

Hi friend!

I'm also having trouble with a Utd1025DL stuck on startup.
If you could share the files, I would be very grateful.

Pyati · « **Reply #16 on:** March 22, 2026, 05:47:30 am »

Write me an email and I will send you everything I have counted.

Pyati · « **Reply #17 on:** March 22, 2026, 05:51:00 am »

Or send an email to [email protected] with the subject "firmware for unit." I'll send it back to you.

KACZANUK · « **Reply #18 on:** March 22, 2026, 06:44:39 am »

Quote from: Pyati on March 22, 2026, 05:51:00 am

Or send an email to [email protected] with the subject "firmware for unit." I'll send it back to you.

Hi friend!
Email sent

blackblock · « **Reply #19 on:** March 29, 2026, 08:02:51 am »

Quote from: Pyati on March 22, 2026, 05:47:30 am

Write me an email and I will send you everything I have counted.

I need same file. Could you send me? Thanks. My email: [email protected]

proff2000 · « **Reply #20 on:** April 16, 2026, 01:35:16 pm »

Hi, I have this product available. Those interested can contact me.
29f1g08abaea
gd25q80
https://drive.google.com/file/d/1cBP9ZYIuPc7bMKqqTIHX31TvTbC6v_wT/view?usp=drive_link
https://drive.google.com/file/d/1pG_cbuZP_hTtWDp1mf5mQJrnhFHf4J98/view?usp=drive_link

Chrispy · « **Reply #21 on:** May 28, 2026, 11:27:00 am »

Hello,
Looking for working dumps for UNI-T UTD1025DL
Need GD25Q80 SPI flash and Flash
My unit hangs on "UNI-T" logo after brownouts. SPI reads all 0xFF (chip alive, data wiped).
Thanks!

Step12 · « **Reply #22 on:** September 15, 2026, 08:35:30 am »

Good afternoon!
I read your post and wanted to ask for your help.
Some guys here have already done me a huge favor, but I still have a few questions...
Could you please tell me if you connected directly to the 9J2 connector using an FTDI adapter?
If it’s not too much trouble, could you enlighten me on how to do that?
Thanks in advance, Stepan!

Step12 · « **Reply #23 on:** September 16, 2026, 10:29:33 am »

Good day Chrispy!
Could you please tell me if you found the "GD25Q80 SPI flash" file you were looking for?
Could you please share the file and explain how you flashed it?
Thanks in advance!

Samuraj1 · « **Reply #24 on:** September 17, 2026, 06:58:12 am »

Hello. I still have this problem with my utd1050cl. It just sat in the closet for a while - and didn't turn on when it was really needed. I would appreciate the firmware files for it.


EEVblog® Main Site	EEVblog® on Youtube	EEVblog® on Twitter	EEVblog® on Facebook	EEVblog® on Odysee

Author Topic: Uni-T UTD1050DL oscilloscope firmware dump needed (Read 6252 times)

Share me