Unlock nokia by USB cable works only for some models.
Before buying check is your Nokia supported.
How to check supported models:
1. instal driver for Your Nokia (You may install also nokia pc suite )
2. run nokia sl3 logger
3. connect Your Nokia using USB cable to PC
4. press “Check Phone”
If program showing “This Phone Can be Unlocked” You can unlock Your phone.
Watch video guide step 1
To unlock Nokia:
5. put login and pass to nokia sl3 logger
6. press “Send IMEI to server”
7. follow by instruction on software.
To finish unlocking watch video guide step 2