Users used Dual SIM function but it does not correspond to a dynamic switch-over when SIM1 was invalided.
The following steps will never succeed to connect to cell network,
Step
|
Action
|
SIM1
|
SIM2
|
ANT A
|
ANT B
|
RSSI
|
Result
|
1
|
Cold start
|
ISP1
|
ISP2
|
YES
|
YES
|
15
|
Connected to ISP1
|
2
|
Eject SIM1
|
-
|
ISP2
|
YES
|
YES
|
-
|
Lost connection and never switch to ISP2
|
The SIM status will show below,
The System log will show below,