: In the "Wipe" pane, ensure USERDATA and CUST-RESET are checked to ensure the lock is actually removed. 4. Flash the Device
: Due to Factory Reset Protection (FRP), you must know the Google account previously synced to the phone to complete the setup after flashing. Step-by-Step Guide to Removing the Lock 1. Download Required Tools & Files
Flashing an FTF file completely reinstalls the Android operating system. This is useful if: You are stuck on a screen lock you can't bypass.
Getting locked out of your can be frustrating, especially if you’ve forgotten your pattern, PIN, or password. While a factory reset is the standard fix, using an FTF firmware file to flash the device is a powerful alternative for a clean slate. Why Use an FTF File to Remove the Lock?
Launch (or Flashtool64.exe for 64-bit systems). 3. Select the Firmware Click the Lightning Bolt icon and select Flashmode . Select the Sony Xperia L1 G3311 from the list.
: You can find official firmware files for the G3311 model on sites like Full-Repair-Firmware .