AND-DNV3N1 Series
45
5. FAQ
Q 1. Where is the serial number located on my system?
• The serial number (S/N) is an alpha-numeric character located on the bottom or
side chassis.
(for reference only)
Q 2. How to active the second SIM card SIERRA EM7455/EM7430 ?
•
Make sure the second SIM card (UIM2) is enabled by check AT!CUSTOM?
•
Make sure SIM hot swap for both SIMs (UIM1 & UIM2).
Use AT!UIMS to select active SIM between the two SIM cards.
Q 3. How to active the second SIM card Quectel EM06-A/EM06-E 4G ?
• AT+QDSIM=?
+QDSIM: (0,1)
//List the number of currently supported card slots
OK
• AT+QDSIM?
+QDSIM: 0
//The current card slot is 1
OK
• AT+QDSIM=1
//Switch to card slot 2
OK
//reboot module
