Unlock Samsung Galaxy Note 4
- Insert the foreign SIM card into your Samsung Galaxy Note 4.
- Turn your handset off and back on again.
- On the dialpad on your phone, type in *#197328640#.
- Then select [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3] Perso SHA256 OFF.
- Wait for 30 seconds or so before returning to your main menu by choosing back.
- In the main menu, you should see a “Network Lock” message, now choose [4] NW Lock NV Data INITIALLIZ.