Download and install the Sony Mobile Flasher (Flashtool) by Androxyde.
Click Flash . A window will appear prompting you to connect your device. Connect in Flash Mode: Turn off your Sony G3311 completely. Press and hold the Volume Down button.
Open the application and click on the Lightning Bolt icon, then select Flashmode . Configure Flash Settings: Select the G3311 firmware from the list.
Removing a screen lock on a can be achieved by flashing its original firmware—an .ftf file—using specialized software. This process effectively restores the phone to its factory state, bypassing forgotten patterns, PINs, or passwords. Prerequisites for Flashing Sony G3311