What you mean that the sim card is not recognized ?
The modem request me the pin, I enter the pin, and I have +CEREG and CGATT response which mean that I am register on network.
How I know that the sim card is not recognized, can I run a CMD for that ?
AT + CPIN? Or AT + CIMI returned
AT+CIMI
2020109204984:7
OK
AT+CPIN?
+CPIN: READY
OK
Try turning off AT + NPIN
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you mean to disable PIN ?
Yes,Confirm if this is the cause.
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thank you for your great support , that was the problem.
I have no idea that for the PSM mode need to disable the PIN.
Maybe you must add this on the manual
Hi Elton
Glad to solve your problem.
I will submit your valuable comments for next revision.
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