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Mobile data connection troubleshooting (view source)
Revision as of 15:59, 22 May 2020
, 15:59, 22 May 2020Protected "Mobile data connection troubleshooting" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))
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* You probably won't see anything when you type commands, and that’s because the screen echo may be disabled. '''ATE1''' command will enable it so that you can see what you write. '''AT+QCSQ=0''' and '''AT+CREG=0''' commands stops showing unnecessary output:
* You probably won't see anything when you type commands, and that’s because the screen echo may be disabled. '''ATE1''' command will enable it so that you can see what you write.
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ATE1
ATE1
OK
OK
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* Use commands '''AT+QCSQ=0''' and '''AT+CREG=0''' to stop showing unnecessary output:
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at+qcsq=0
at+qcsq=0
OK
OK
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'''Note:''' reboot the module if it fails to identify SIM
'''Note:''' reboot the module if it fails to identify SIM
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*Use command '''AT+CREG''' to check GSM connection:
* Use command '''AT+CREG''' to check GSM connection:
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AT+CREG?
AT+CREG?
''<authentication>'' The authentication methods (0 – NONE; 1 – PAP; 2 – CHAP; 3-PAP or CHAP).
''<authentication>'' The authentication methods (0 – NONE; 1 – PAP; 2 – CHAP; 3-PAP or CHAP).
Example: use '''AT+QICSGP=1,1,"APN_Name","","",1'''
Example: '''AT+QICSGP=1,1,"APN_Name","","",1'''
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AT+QICSGP=1,1"bangapro","","",1
AT+QICSGP=1,1"bangapro","","",1
