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sometime host cannot deactivate the LTE when the network registration status is 2

Siyou over 5 years ago

Hi,

We found sometime the LTE cannot be deactivated during the modem is trying to attach or searching network;

It can be reproduced by below steps:

Condition: there is no catM1 network and no NB network(You can assume it is in shielded room)

1), AT+CEREG=5

2), AT+CFUN=21

Wait until the the CEREG notified "+CEREG: 2,....."

3), AT+CFUN=20

Sometime the network registration status cannot chage to 0 even the result of AT+CFUN? is "+CFUN: 4"

It can be found both catM1(AT%XSYSTEMMODE=1,0,1,0) and NB(AT%XSYSTEMMODE=0,1,1,0) mode.

modem fw version: mfw_nrf9160_1.1.1