Unable to Recover nRF52832 After Debugging Session

RE: Unable to Recover nRF52832 After Debugging Session

EricF1 — Wed, 12 Nov 2025 22:17:58 GMT

If anyone else is having issues and this solution does not work, try out this setup using an nRF52 DK and your custom board. I did not have any luck with the batch script but using the nRF52 DK worked https://devzone.nordicsemi.com/f/nordic-q-a/14058/external-programming-using-nrf52-dk?ReplySortBy=CreatedDate&ReplySortOrder=Ascending

RE: Unable to Recover nRF52832 After Debugging Session

tr-Puck — Mon, 07 Apr 2025 19:46:03 GMT

This also saved me with my nrf52840 DK. Thank you!

RE: Unable to Recover nRF52832 After Debugging Session

Håkon Alseth — Mon, 03 Feb 2025 13:23:32 GMT

Glad to hear it worked out!

Kind regards,

Håkon

RE: Unable to Recover nRF52832 After Debugging Session

Red J. — Mon, 03 Feb 2025 13:14:17 GMT

Hi Håkon,

After loads of attempts, it finally recovered.

Thank you for your help!

RE: Unable to Recover nRF52832 After Debugging Session

Håkon Alseth — Mon, 03 Feb 2025 12:56:49 GMT

Hi,

It sounds like your device is continuously asserting, where the default behaviour is then to do a soft-reset. If this happens early in the boot-process, it is quite hard to recover the device.

Try to run nrfjprog --recover in a loop, by creating a batch file like this (rename it to recover.bat or something):

:loop
nrfjprog --recover -f nrf52
goto loop

And run this while power-cycling your DUT.

Could you try this and report back if you still have issues?

Kind regards,

Håkon