To remove a forgotten pattern, PIN, or password lock on your using an FTF file , you must flash the device's firmware using the Sony FlashTool . This process effectively resets the software, wiping all security layers along with personal data. Prerequisites for Removing the Lock
on your PC to ensure it recognizes the phone. sony c6802 lock remove ftf
I've noticed a lot of people asking about removing the pattern/password lock or bypassing the protection on the Sony Xperia Z Ultra (C6802) without losing data, or simply how to flash a clean FTF file to wipe the device. Sony Xperia Z Ultra (C6802) To remove a
No FTF file currently exists or can exist to bypass a network SIM lock on Sony C6802, because the lock is stored in a protected area outside the firmware image. Open Flashtool