In theory, the practice that the operators of sell mobiles tied to your own company, it is not a legal practice and we have every right to facilitate the unlock code of the terminal to be able to use it with any telephone company. Do you want to find out how to know if my mobile is free?
But as sometimes this is not just fulfilled, today we bring you the way to free the Samsung Galaxy S4 model GT-I9505, ourselves and completely free.
It cannot be said that neither Androidsis nor I myself are responsible for what may happen to your device, although if you follow the instructions to the letter nothing strange should happen, the only thing is that we will have our brand new Samsung Galaxy S4 completely free and without paying a penny for the work.
How to unlock the Samsung Galaxy S4 model GT-I9505 completely free
The first thing we should do is open the telephone keypad and dial * # # 0011, we press the menu button and in the drop-down that appears we select back or back, we press the menu button again and select the option key input, we wrote 1 and we accept to enter the mode ServiceMode.
Now we press again on the menu button and again ago, in the new screen that appears we will select the first option UMTS.
Now we select the first option again, called debug screen and then the option number 6 PhoneControl.
In this new screen we select the option 6 Network Lock.
Now we select the third option called PERSONAL SHA256 OFF
Now we will return to the main menu of ServiceMode pressing on the menu key and then back or back.
Now we will select the option 6Common and then the option number 6 NV Rebuild.
In this new screen the terminal informs us that there is a Gold Backup, we will click on the number option 4 Restore Backup.
If we have followed all the steps correctly, the terminal will initially remain as blocked, then it will will restart automatically although before that we will be left with the black screen for a while, the blue led on and the two capacitive buttons also on.
This process may take a couple of minutes or three, when you wake up again we will have our Samsung Galaxy S4 completely released and valid for any company, all this permanently and without having spent a penny or without having to learn how to root Samsung Galaxy S4 to release it.
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