I have a MC7304 fitted in a M.2 socket with drivers installed. Its showing the following in log file:
ATQ0V1E0 - OK
AT+GMM - MC7304
AT+FCLASS=? - +FCLASS: (0-1)
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - COMMAND NOT SUPPORTED
AT+GCI=? - COMMAND NOT SUPPORTED
ATI1 - Manufacturer: Sierra Wireless, Incorporated
Revision: SWI9X15C_05.05.58.00 r27038 carmd-fwbuild1 2015/03/04 21:30:23
IMEI SV: 18
I have replaced IMEI number with x’s, shows valid number.
In Windows I get “Insert SIM”. Its connected to SIM2 connections on the M2 socket. The SIM worked fine in my phone. I have inserted it the right way round. I have thoroughly checked wiring is correct.
I have wires soldered on to the SIM card pins with scope probes attached and I see no activity at all not even sim power.
Is this a configuration issue? Any ideas what to try. Does it need to be on SIM1?
I have an unpopulated ESIM footprint on my board so shouldn’t see anything on SIM1.