Reply To: No SIM detected

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I have the same issue with my boards.

I can confirm that it’s not a board issues, since I tested on 8 different ones. Sometimes, in random occasions after boot AT+CPIN? returns READY.

But on 99% of the cases I receive +CME ERROR: SIM not inserted.


returns the following:

+CIND: 5,3,0,0,0,0,0,0,1,0,0,0

Can you provide some assistance please? I have 20 GPS+GPRS boards from you, and I can’t get them out into production.

Blip, blop, bloop…