SIM7600 Shield not registering with Mexico operators SKU:TEL0124

Account cancelled 2021-05-05 11:09:51 334 Views0 Replies
I tested 3 companies SIMs with no success, TELCEL, MOVISTAR and AT&T

What I missing?

I sending

AT
OK
AT+COPS?

+COPS: 0

AT+CREG?

+CREG: 0,0

OK

Any help?