Unlock modem. Recovery attempts to enter.
UNLOCKING MODEM: As usual, modems from cellular operators are delivered blocked - they can work only with SIM cards of this operator. The list of plmn-codes allowed for use can be viewed with the command
at ^ simlock? .
Of course, this situation does not suit us - we want, having bought a modem, to use it with any sim card. For this, the manufacturer laid the opportunity to unlock the modem. This is done by entering the unlock code (
nlock code ), calculated by a special tricky algorithm from the IMEI modem.
Calculator to calculate codes
can be downloaded here (there are versions for windows and linux).
To unlock, follow these steps :
- Calculate the unlock code using the above calculator. Of all the codes he uses,
code v201 .
- Insert someone else's sim card into the modem (sim card of another cellular provider, not the one who sold you the modem).
- Connect the modem to the computer. Further, the control program (for stick-modems) or the web interface (for hilink-modems) will ask for the unlock code, which must be entered. All - the modem is unlocked and will work with any sim card.
In addition to entering the code through the program and the web interface, you can also enter it via the AT command. This is especially true for stick-modems under linux.
The team looks like this:
at ^ cardlock = "unlock code" - used
code v201 *****
RECOVERY ATTEMPTS: The number of attempts to enter the code is limited
10 attempts . If the wrong code was entered 10 times, the modem blocks further attempts - more, the at ^ cardlock command will not unblock it, even if you enter it with the correct code. If you still managed to exhaust all input attempts, that's okay - they are easy to recover.
This is done by such teams.:
at ^ datalock = "unlock code" - used
code v201 at ^ maxlcktms = 10 10 is the new number of attempts (you can enter any number from
1 before
255 ). You can then enter the command
at ^ cardlock with the correct code and unlock the modem.
Total: consistently enter AT commands from top to bottom:at ^ datalock = "NCK code" - used
code v201 at ^ maxlcktms = 10 - you can enter any number from
1 before
255 #
at ^ cardlock = "NCK code" - used
code v201