RE: nrf9151-laca-r7 - modem does not start

Øyvind — Fri, 23 Oct 2026 06:57:55 GMT

Hello, sorry, the picture issue was a hickup on my side. I have now been able to open the image.

Could you test with running nrfutil device recover and then reprogram the modem FW and application. How did you program the modem FW in the first place i.e. nrfutil or nrf connect for desktop programmer app?

If this does not help, could you try adding the following to the application prj.conf:

CONFIG_NRF_MODEM_LIB_LOG_LEVEL_DBG=y

CONFIG_LOG_MODE_IMMEDIATE=y

And collect a modem trace building the application with nrf91-modem-trace-rtt snippet

Kind regards,
Øyvind

RE: nrf9151-laca-r7 - modem does not start

Øyvind — Fri, 23 Oct 2026 06:43:40 GMT

Hello,

thanks for reporting this issue. Could you please provide some more details on your setup? Full logs from the device would be beneficial. The picture attached is not opening on m side. What are you trying to achieve? Are you working on the nRF9151DK or a custom design?

Thanks!

Kind regards,
Øyvind