If you own the Samsung Galaxy S4, S3, Note 2 or Note 3, then you can use the engineers unlock code that has been found online.
Once you unlock the device it can be taken to another carrier. You could even sell your handset, or give it away to a friend or family member overseas.
So if you want to go ahead and unlock your handset you can follow the guide below:
1. At the dial pad, key in *#197328640#.
2. This will prompt a message.
3. Go to your main menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3] Perso SHA256 OFF.
4. Select ‘back;’ after leaving the device idle for a minimum of a minute.
5. There will be the network lock prompt.
6. Choose [4] NW Lock NV Data INITIALLIZ.
The number sequence should be like this: Asterisk Pound One Nine Seven Three Two Eight Six Four Zero Pound
This code could work on any of the Samsung handsets as the code has been used for some time.
