Before proceeding, please note that this process may void your device's warranty and may potentially brick your device if not done correctly. Proceed at your own risk.
If you have irreplaceable data (photos of a child’s first steps, work documents) and no backup, you can try a method. This is riskier but possible. sony c6802 lock remove ftf
Flash the FTF (full wipe)
: Hold the Power button to turn the device on. The first boot may take several minutes. Alternative: Official Software Repair Before proceeding, please note that this process may
Disclaimer: Flashing custom/unmodified firmwares is legal and safe when done correctly. The author is not responsible for data loss or hardware damage. Always ensure your battery is above 70% before flashing. This is riskier but possible
: Sony's official software can perform a "Software Repair" to reset the device and remove the lock. Google Find My Device