- Dial *#197328640#
- Go to Main Menu >  UMTS >  Debug Screen >  Phone Control >  Network Lock > Options Perso SHA256 OFF
- Wait 30 seconds
- Press Menu and Back (This will take you back to  Network Lock
- Choose  NW Lock NV Data INITIALLIZ
- Wait 1 minute
- This should have unlocked you Galaxy Note 2
What's my model number?
There are several ways to locate your model number:
- Option 1
- On your device, go to Settings, then "About device" and scroll down to "Model number"
- Option 2
- Often times you can view the model number inside the device, by removing the battery
- Option 3
- Using Samsung's model/serial number location tool