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Mobile data connection troubleshooting (view source)
Revision as of 11:59, 21 May 2020
, 11:59, 21 May 2020→Debugging process
+CPIN: READY
+CPIN: READY
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'''Note:''' reboot the module if it fails to identify SIM
'''Note:''' reboot the module if it fails to identify SIM*Use command '''AT+CREG''' to check GSM connection:
*Use command '''AT+CREG''' to check GSM connection:
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AT+CREG?
AT+CREG?
