read SIM problem

Official Hardware MKR Family MKR GSM 1400
1

hello everyone,

sometime my MKR1400 hangs during SIM card read. It hangs and not responding.
when it happens, I push the reset button and it works untill read the SIM card.
I try to reprogramming and sometimes works sometimes not.

can you help me??

thanks

2

When sim card is not inserted, it will be in the same way. it's possible? it stay hangs on
"if (gsmAccess.begin(PINNUMBER) == GSM_READY)"

test with SerialGSMPassthrough sketch:
SIM not inserted:
->AT+CPIN=?
->OK
is it regular??