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.
Unplug the phone and turn it on. The first boot may take several minutes. Alternate Method: Xperia Companion
Before starting, ensure you have gathered the necessary tools and prepared your hardware: sony g3311 lock remove ftf
Most flashing tools for Sony are Windows-based.
Release the button once Flashtool detects the device and begins the flashing process. Click Flash
Download and install the Sony Mobile Flasher (Flashtool) by Androxyde.
Install drivers to ensure your PC recognizes the G3311 in "Flash Mode". Press and hold the Volume Down button
Ensure your device has at least 50% battery to prevent shutdown during the process. Step-by-Step Guide: Lock Removal via FTF
Open the application and click on the Lightning Bolt icon, then select Flashmode . Configure Flash Settings: Select the G3311 firmware from the list.
Do not disconnect the cable until you see "Flashing finished" in the log.