[HELP] MC7700 card locked

IoT Modules MC/EM Series
1

Hello everyone,
I don’t know if I’m in the right place, so if I make a mistake, let me know.

I have a Sierra Wireless MC7700 module that is locked, and I’m looking for advice or assistance on how to unlock it.

I’ve tried several methods to unlock it, but so far, I haven’t been able to find an effective solution. The module is responding only with Skylight connection manager and need a code to unlock it with a maximum of 255 attemtps.

I would greatly appreciate any help or suggestions you can provide. Thank you in advance for your valuable assistance.

2

Do you have modem port in device manager?
If yes, please show the response of the followings:


Ati3
at!entercnd="A710"
at!gstatus?
at+cpin?
at!pcinfo?
at+cfun?
at!gobiimpref?
3

On Windows it is not recognized like a Modem, I have MC7700 in Networks adapters and in USB devices, and the gps sensor in Sensor. So i dont have any com port. When I go on Linux, I can run some AT commands in the terminal and here are the results :

turbomind@turbomind:~ $ mmcli -m 1 --command=ATI3

response: 'Manufacturer: Sierra Wireless, Incorporated
Model: MC7700
Revision: SWI9200X_03.05.21.01ap r5616 carmd-en-10527 2012/12/11 19:18:49
IMEI: 012810002283370
IMEI SV: 16
FSN: CDC0953172010
3GPP Release 8
+GCAP: +CGSM,+DS,+ES'

turbomind@turbomind:~ $ mmcli -m 1 --command=AT!ENTERCND=“A710”

error: command failed: 'GDBus.Error:org.freedesktop.ModemManager1.Error.MobileEquipment.Unknown: Unknown error'

turbomind@turbomind:~ $ mmcli -m 1 --command=AT!gstatus?

response: '!GSTATUS: 
Current Time:  668		Temperature: 25
Bootup Time:   6		Mode:        LOW POWER MODE 
System mode:   Unknown    	PS state:    Not attached 
GMM (PS) state:NULL           	---            
MM (CS) state: NULL           	---            '

turbomind@turbomind:~ $ mmcli -m 1 --command=AT+cpin?

response: '+CPIN: PH-NET PIN'

turbomind@turbomind:~ $ mmcli -m 1 --command=AT!pcinfo?

response: 'State: 0 (LPM)
LPM force flags - W_DISABLE:0, User:0, Temp:0, Volt:1, Auth:0
W_DISABLE: 0
Poweroff mode: 0
'PM Persistent: 0

turbomind@turbomind:~ $ mmcli -m 1 --command=AT+cfun?

response: '+CFUN: 0'

turbomind@turbomind:~ $ mmcli -m 1 --command=AT!gobiimpref?

error: command failed: 'GDBus.Error:org.freedesktop.ModemManager1.Error.MobileEquipment.Unknown: Unknown error'

It seems that some commands are unavailable due to the fact that the card is locked

4

you need to use minicom to open the serial port to enter those AT commands.

PH-NET PIN — MT is waiting for the network personalization password to be given
“PH-NET PIN” happens also when the module is SIM LOCK to an operator while this operator is not present in area of the module

In addition, “Volt:1” shows there is voltage problem (i.e.Voltage is outside operational limits)

5

Here is the result in minicom :

ati3
Manufacturer: Sierra Wireless, Incorporated
Model: MC7700
Revision: SWI9200X_03.05.21.01ap r5616 carmd-en-10527 2012/12/11 19:18:49
IMEI: 012810002283370
IMEI SV: 16
FSN: CDC0953172010
3GPP Release 8
+GCAP: +CGSM,+DS,+ES


OK
at!entercnd="A710"
OK
at!gstatus?
!GSTATUS: 
Current Time:  150              Temperature: 22
Bootup Time:   1                Mode:        LOW POWER MODE 
System mode:   Unknown          PS state:    Not attached 
GMM (PS) state:NULL             ---            
MM (CS) state: NULL             ---            



OK
at+cpin?
+CPIN: PH-NET PIN

OK
at!pcinfo?
State: 0 (LPM)
LPM force flags - W_DISABLE:0, User:0, Temp:0, Volt:1, Auth:0
W_DISABLE: 0
Poweroff mode: 0
LPM Persistent: 0


OK
at+cfun?
+CFUN: 0

OK
at!gobiimpref?
ERROR

The AT!GOBIIMPREF? command still not work, but the entercnd one worked.
So, I dont clearly know what I need to do now. Do I need to give it a password ? But how do I get it and how do i give it ?

6

as said before, there are two issues:

  1. Voltage is outside operational limits
  2. the module is SIM LOCK to an operator while this operator is not present in area of the module