RE: nRF9160 UICC failure

Adamcs — Mon, 19 Jan 2026 14:53:09 GMT

[quote userid="148570" url="~/f/nordic-q-a/126572/nrf9160-uicc-failure/558993"]Does it have the "SIM current measurement" jumper (P30) on,[/quote]

Ahhh, that was the issue. Thanks Simon, I was losing my mind over this during the weekend.

RE: nRF9160 UICC failure

Simon D-M — Mon, 19 Jan 2026 10:56:34 GMT

Hi Adam,

First thing you can check is if the board is configured correctly. Does it have the "SIM current measurement" jumper (P30) on, and is the "SIM select" switch (SW7) on "SIM" (even tho iBASIS call their cards "eSIM", they are normal SIM cards. eSIMs are an electronic chip that you solder to your board. wikipedia link).

If you have another nRF91 development kit, you can try to use the SIM card on this other device to check if the SD card is working.

For the iBASIS cards, you should be able to check on your nRF Cloud account how much data is remaining on your SIM.

Tell me if any of this worked !

If not, please send the modem traces (link) so that I can analyze a bit more what is happening ?

Best regards,

Simon D-M