Firmware keeps corrupting on windows 7 pc NRF52832 DK pcb 2.0.0/2.1.0 version

[deep2021]

I have Windows 7 pc on which PCA10040 DK is used to test UUT.

- Devkit frequently gets corrupted for unknown reason.

-It has custom Firmware which is validated to be working fine at another setup with same versions (It has windows 10).

-Once corrupted, I am able to see the Jlink com port as usual but cannot configure it.

-On nrf Connect when read from the device it only shows MBR or Application(Orange slot) region. { this is read on windows 10 computer because I am not able to find any orking nrf app for windows 7)

-Basically we have to frequently reprogram the devkit in win10 and jump to win7 pc for testing.

[Jørgen Holmefjord]

deep2021 said:

The devkit is being corrupted.

The DK consists of many parts. I assume you are referring to the flash of the nRF52832 chip on the DK?

deep2021 said:

It is a custom firmware consist of softdevice and application files.

Can you share the hex-file(s) that you flash to the DK?

deep2021 said:

When I connect back to nrf devkit it only read MBR while softdevice and application are gone.

Can you upload a readout of the flash from nrfjprog, after the device have been corrupted? 

nrfjprog --readcode flash.hex