How to Unlock Samsung Galaxy S4 (GT-i9505)

Free PROGRAMS

1 - The first thing to do is open the phone dialer and press * # 0011 #

2 - Then, press Menu and then Back . Then slowly press the Menu again and choose Key Input . He writes one and press OK to enter Service Mode .

3 - Press Menu again and then back . This will bring up the Main Menu ( Main Menu) to Service Mode . There press [1] UMTS .

4 - Select [1] DEBUG SCREEN , then [6] PHONE CONTROL .

5 - In the next screen you must choose [6] NETWORK LOCK .

6 - There you will have three options: click on [3] OFF PERSONAL SHA256 .

7 - Return the Main Menu by pressing Menu followed by Back . In the menu select [6] COMMON , then [6] NV REBUILD .
8 - The device will say that Golden Backup exists. Click on [4] Restore Back-up.

Then the device will go through a series of "conditions" and freeze. After a couple of screens appear and finally restart automatically (be patient, all this can take a few minutes).

9 - Ready! 've Managed to release Samsung Galaxy S4 and can be used with the company you want!

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