IoT Starter kit not connecting to LTE

Solved
tnkumar's picture
tnkumar
Junior(0)

I was earlier able to connect through LTE to flow.

I made a small change to the software (changed poll rate to 4 seconds from 5 seconds), recompiled, copied the software to the embedded device, powered off and powered on again. I am not able to connect to LTE.

Below, I am listing the serial logs, in case it assists.

Please help and suggest next steps.

Regards.

- Kumar

Serial logs

------------ software_init_mdm! --------->
Send: <<AT+CSQ>>
[AT+CSQ+CSQ: 99,99OK]
Send: <<AT+CPIN?>>
[AT+CPIN?+CPIN: READYOK]
Send: <<AT+CREG?>>
[AT+CREG?+CREG: 0,0OK]
------------ software_init_mdm! --------->
Send: <<AT+CSQ>>
[AT+CSQ+CSQ: 99,99OK]
Send: <<AT+CPIN?>>
[AT+CPIN?+CPIN: READYOK]
Send: <<AT+CREG?>>
[AT+CREG?+CREG: 0,0OK]
------------ software_init_mdm! --------->
Send: <<AT+CSQ>>
[AT+CSQ+CSQ: 99,99OK]
Send: <<AT+CPIN?>>
[AT+CPIN?+CPIN: READYOK]
Send: <<AT+CREG?>>
[AT+CREG?+CREG: 0,0OK]
------------ software_init_mdm! --------->
Send: <<AT+CSQ>>
[AT+CSQ+CSQ: 99,99OK]
Send: <<AT+CPIN?>>
[AT+CPIN?+CPIN: READYOK]
Send: <<AT+CREG?>>

jflynn129's picture
jflynn129
Moderator(2)

As a starting point, I would roll back to the original 
SW and validate that it is infact still working.  Assuming it is, then I would diff the changes you made and see if all the changes were what you expected.  The timing of polling should make to difference, my guess is that something else changed in the SW or the build process between the two builds.