I confirm the correct operation of the method on Galaxy Note 2 (i317m) locked on rogers and Galaxy s3 as well locked on Bell. LTE and 4g Works fine also after the unlocking.
The method works well.
When you click on PERSO SHA256 OFF you can show a message like MENU NOT EXIST ; it does not bother, just click on it again and continue.
Once the phone is restarted the unlock will be done with success.
for galaxy note 2
1-put a different sim card on the phone
3-Clic on UMTS
4-Clic on DEBUG SCREEN
5-Clic on PHONE CONTROL
6-Clic on NETWORK LOCK
7-Clic on PERSO SHA256 OFF (wait 30 seconde)
8-Clic on NW LOCK NV DATA INITIALLIZ
wait 1 minute and reboot the phone. After wait between 1 and 5 minute
Sorry for my english ...
Thanks a lot OP