How do I test to see if a SIM slot is bad in a Digi Transport via CLI commands

With the router powered off, insert a SIM card into BOTH SIM slots of the Digi Transport and open the CLI interface.
Access to the CLI (Command Line Interface) – this can be achieved:

• Through the serial port @115200 bps
• Via a telnet or SSH connection
• Via the “execute a command” page of the web user interface.

 
Issue the following command:
 

simconn ?

This command tells you which SIM slots are populated and also the SIM that is currently in use. The value before the comma is SIM 1 and the value after the comma is SIM 2. 1000 means that the SIM is present. 1001 means that the SIM is present and the active SIM. Here is a summary:
 
1 = SIM not present
1000 = SIM present
1001 = SIM present and connected
 
 
 
The output should be as follows:
 
 

 
Showing that SIM 1 is present and active and SIM 2 is present.
If the SIM cards are physically inserted but do not show as present please request an RMA with reason “SIM DETECTION FAIL”