How to SIM Unlock the Samsung Galaxy Note 3:
Launch your smartphone’s dialer.
Enter the following code : *#197328640#
Press the Menu softkey.
Press Back.
Press Menu and then open the Key input.
Enter 1, press OK.
Press Menu and press Back again.
Tap [1]UMTS
Tap [1]Debug Screen
Tap [8]Phone Control
Tap [6]Network Lok
Tap Options and then tap [3]Perso SHA256 OFF
Press Menu and Back.
Press [6]COMMON
Tap [4]NW Lock NV Data INITIALLIZ.
If the process was successful, you should see the following text: “Asterisk Pound One Nine Seven Three Two Eight Six Four Zero Pound. The Galaxy Note 3 will restart and boot in normal mode.
We cannot be held responsible in case your brick the phone or it becomes unusable after using this tutorial. That’s why this guide is destined to be used by advanced users.
If the FREE SIM Unlock For Galaxy Note 3 method listed above doesn’t work, then you can always choose to buy an unlock code.
Find your Galaxy Note 3 IMEI Code by going to Settings > About Device > Status, or you can choose to open the Dial Pad and type *#06#
After you find your phone’s IMEI you should go to DoctorSIM or CellUnlocker.net and buy one of their unlock codes.
These were all the steps that we had for you, now you should test the tutorial. If neither method works, then you can always choose to contact your carrier and ask for an unlock code. Some carriers will offer it for free.
For any other questions please use the comments field below.