IPC Failure

RE: IPC Failure

Arend — Fri, 23 Oct 2026 09:44:55 GMT

Yes that was there before the issue occurred. We have managed to get one working on a different board. It was very strange thought that this appeared on 5 different boards.

RE: IPC Failure

Syed Maysum Abbas Zaidi — Thu, 22 Oct 2026 14:22:11 GMT

Hi,

Thanks for providing the Sip marking. I can see some soldering on the board, so just like to ask if that was done before or after the issue occurred.

RE: IPC Failure

Arend — Thu, 22 Oct 2026 05:19:32 GMT

RE: IPC Failure

Arend — Thu, 22 Oct 2026 05:17:35 GMT

I also assumed this. The configuration at a point was to have P0.20 as internal pull up, also connected to an external pull and to a GPIO on an ESP32 with an internal pullup to. The I would drive P0.20 low as a signal, I do not know the internals of the chip and if this might have shorted something inside the NRF.

RE: IPC Failure

Syed Maysum Abbas Zaidi — Wed, 21 Oct 2026 15:53:06 GMT

Also can you share the picture of SiP marking on your board. Thanks.

RE: IPC Failure

Syed Maysum Abbas Zaidi — Wed, 21 Oct 2026 15:33:36 GMT

Hi,

Thanks for confirmation. It most likely looks a hardware issue on this board, do you have second custom board by any chance to check if it behaves the same?

RE: IPC Failure

Arend — Wed, 21 Oct 2026 14:51:00 GMT

Yes, I did recover then flash modem firmware then app. As well as power cycle. I tried both mfw_nrf9151-ntn_1.0.1 and mfw_nrf91x1_2.0.4. Both failing and being unsuccesfull.

RE: IPC Failure

Syed Maysum Abbas Zaidi — Wed, 21 Oct 2026 14:32:29 GMT

Hi,

Thanks for reaching out.

Have you tried the recovery steps, first nrfutil device recover, then modem firmware, then the app, then doing full power cycle. Also can you share the modem firmware version you are flashing?

Best Regards,
Syed Maysum