Sony Xperia Z5 Premium Dual (E6833) can have its screen lock removed by flashing a stock firmware file ( ) using the third-party Sony Flashtool
: Connecting the Sony E6833 to the computer via a USB cable. The device needs to be recognized by the Flash Tool.
Download the correct E6833 stock firmware ( .ftf ) for your specific regional variant. sony e6833 lock remove ftf
Move to the section on the right side of the screen. Ensure USERDATA and APPLOGS are both checked.
Before diving into the lock removal process, it’s crucial to understand what an FTF file is. Sony Xperia Z5 Premium Dual (E6833) can have
In the source folder, select the folder created during the decryption step (Step 2).
: The user then selects the downloaded FTF file within the Flash Tool and initiates the flashing process. This process writes the contents of the FTF file to the device's firmware, effectively modifying its system software. Move to the section on the right side of the screen
: The process will begin automatically. Once "Flashing finished" appears, disconnect and reboot your phone.
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Launch (use Flashtool64.exe if running a 64-bit Windows OS).
Click on the menu, then select Bundles -> FILESET Decrypt . Navigate to the folder where you downloaded the FTF file.