I’ve been trying to use the Raspberry Pi Hat with a M2 modem that I have but I have some trouble getting it to recognize the SIM card that is inserted on the HAT.
AT Commands work well but as soon as I try to ping the SIM (using AT+CPIN?), I get an error “SIM not inserted”.
I reckon this might have to do with the pretty atypical setup that I used to try this out (M2 modem → miniPCIe Adapter → Sixfab HAT) but this still is strange to me since the pinout of the adapter should be alright, and I can ping and see every info about the modem so most of it seems to work.
Here a picture of the setup :
And the output from the AT commands :
For the full setup : RPi 4 on Bullseye, Fibocom FM101-EAU modem (QMI-enabled) (also tried with Intel-based Fibcom L850-GL), Sixfab Raspberry PI LTE Hat.
Thank you for any info that you have.