Turn off your phone. Hold the Volume Down button while connecting it to the computer via USB.
This automatically downloads the correct firmware and removes the lock screen in a similar way. Important Note: After resetting, you will likely encounter Factory Reset Protection (FRP) sony g3311 lock remove ftf
The Flashtool will detect the device and start the process, which typically takes 15–20 minutes. Turn off your phone
Wait patiently. The progress bar will indicate the status. Do not touch the cable or disconnect the phone while the flashing process is underway. Important Note: After resetting, you will likely encounter
Place the downloaded .ftf file directly into: C:\Users\[YourUserName]\.flashTool\firmwares (If the folder doesn’t exist, run Flashtool once to create it.)
Click on the (represented by a black and silver square icon on the top toolbar). In the left panel, navigate to Xperia L1 and select G3311 .