For those looking to bypass a forgotten pattern or PIN on the Sony Xperia C (C2305)
When prompted, hold the button and connect the phone to your PC via USB. Release when the tool detects the device in "Flash Mode". Download C2305 Xperia lock remove ftf
Open Flashtool, click the lightning bolt icon, select , and choose your For those looking to bypass a forgotten pattern
An FTF file is a packaged firmware image specifically for Sony Xperia devices. When you use Flashtool to flash this file, it essentially overwrites the existing system software, which effectively removes user-set locks like patterns and PINs. click the lightning bolt icon
The tool will wipe the cache and user data. Once finished, disconnect and reboot the phone; the lock screen will be gone. Official Alternatives (No Flashing Required)