Result: The lock screen data is cleared because it's stored in system settings (not user data), but your personal files remain intact.
Flashtool will immediately detect the green LED and start writing the FTF.
Watch the log panel (bottom of Flashtool): sony g3311 lock remove ftf
INFO - Processing userdata.sin
INFO - Writing image userdata...
INFO - Lock screen data erased.
INFO - Flashing finished.
INFO - Please unplug and restart the phone.
This takes about 3-5 minutes. Do not disconnect the cable. Do not press any buttons.
Yes. Flashing a full stock FTF with WIPE USERDATA completely removes the previous Google account token. Your G3311 will act as a brand-new device after the flash. Flash the firmware
Yes! Flashmode works at the hardware level. USB Debugging is only required for ADB commands. Flashtool does not require Android OS access.
Generally no. The Sony G3311’s bootloader is version-locked. You must flash an official Sony FTF with the same or newer patch level. Do not attempt cross-flashing (e.g., G3312 firmware on G3311). Result: The lock screen data is cleared because
This process is irreversible. Flashing an FTF to remove a lock erases everything:
Cause: You flashed a "persist" or "OEM" FTF without userdata. Or you booted the phone without wiping first. Fix: Perform a factory reset in recovery after flashing, then reboot.
Solution: Your FTF file is corrupted. Re-download the G3311 firmware from a different mirror. Ensure the file size is ~1.8GB to 2.3GB.