Verizon SIM not detected with MC7455


#1

Our device has MC7455 and we could successfully test AT&T network. But our device is not able to detect Verizon network. When we try to read SIM, it always says failure.

AT+CPIN?
AT+CPIN?
+CME ERROR: SIM failure

done.

AT!GSTATUS?
AT!GSTATUS?
!GSTATUS:
Current Time: 95 Temperature: 25
Reset Counter: 1 Mode: ONLINE
System mode: WCDMA PS state: Not attached
WCDMA band: WCDMA 850
WCDMA channel: 4385
GMM (PS) state:DEREGISTERED PLMN SEARCH
MM (CS) state: IDLE NO IMSI

WCDMA L1 state:L1M_PCH_SLEEP LAC: DE8B (56971)
RRC state: DISCONNECTED Cell ID: 003A13DD (3806173)
RxM RSSI C0: -75 RxD RSSI C0: —
RxM RSSI C1: — RxD RSSI C1: —

OK

ATI
Manufacturer: Sierra Wireless, Incorporated
Model: MC7455
Revision: SWI9X30C_02.24.05.06 r7040 CARMD-EV-FRMWR2 2017/05/19 06:23:09
MEID: 35907206117326
IMEI: 359072061173262
IMEI SV: 12
FSN: LQ727585420310
+GCAP: +CGSM

Can you please help on what could be possible issue. We did try setting the module to factory default, but problem still persists.


#2

@vikashj,

Are you sure it is an LTE SIM and not a CDMA RUIM from Verizon?

SIM failure means the unit has attempted to connect to the SIM card but has failed to negotiate with it.

Regards

Matt


#3

Thanks for response, we are checking with verizon on SIM information.


#4

We found that there was some HW fault on device, after correcting the same SIM were detected fine.