Samsung Galaxy S4 Tips: How To Unlock It

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The easiest way ti unlock your lock smartphone is to get your carrier to do it for you although they will only do it if your contract with them has ended or if you have to leave the country but of course, there are ways for you to unlock your Samsung Galaxy S4 on your own so that you can use a SIM from another carrier.

Here is how you can unlock your Samsung Galaxy S4. Before you start, make sure your device is either the GT-I9500 or the GT-I9505 and make a backup for all your important data.

First, open up the dial pad and type *#27663368378#, do not press call, the device will automatically take to ServiceMode. If the code does not work, try *#0011#. Now, select Menu > Back (in the menu) > Menu > Key Input and enter 1. Press OK.

You are on the right track if you are at the UMTS main menu. Now select [1] Debug Screen followed by [6] Phone Control > [6] Network Lock > [3] PERSO SHA256 OFF. Press the Menu button and select Back from the Menu once more.

Now choose [6] COMMON > [6] NV REBUILD > [4] Restore Back-up. Your smartphone should reboot now. After rebooting the device should be unlocked.

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