Unlike Samsung or Xiaomi, Sony devices require .ftf bundles created by the (by Androxyde). These files contain the raw system, kernel, and TA (Trim Area) partitions. Flashing a clean FTF is the only reliable way to bypass locks if ADB debugging is turned off.
: If the device is connected to a Google account and has an internet connection, the "Erase Device" option can be used remotely via another computer or phone. sony g3311 lock remove ftf link