DSO4104B firmware

alex-k

Hello.
I'm using DSO4104B.
When I changed to DSO4000B Firmware updated on July 1, 2021,I can't operate the waveform correctly.

The value is incorrect even if a 1KHz 2Vp-p reference waveform is input.
You will also see error -100.


I would like to revert to the original firmware, where can I download it?



Thanking you in advance.

alex-k

Thank you for your reply.



I restarted, but it still doesn't work properly.

I also tried calibration, but as soon as I started, the message "ERROR: 502d4" was displayed and it stopped.



If there is a way to get it back, please let me know.

I'm sorry, but thank you.

alex-k

Thank you for Jing's advice.

I tried to calibrate after warming up for about 1 hour without connecting anything, but it was also "ERROR: 520d4".
(I wrote "ERROR: 502d4" yesterday, but "ERROR: 520d4" is correct)

I downloaded the firmware again and tried updating it again, but it didn't work either.

alex-k

Jing replied at 2021-12-13 16:51
Open the machine to see if there is an SD card in the SD card slot. If there is an SD card, short  ...

Thank you for your advice.
I'm on a business trip right now, so I'd like to try it when I get home.
Open the cover and look for the SD card.
Is the P5 terminal a pin in the SD card slot?
And it would be very helpful if you could tell me the pin number to short the P5 terminal.

Thank you for telling me a lot.
Thank you.