If the device is linked to a Google account and has internet access, you can remotely erase it via the Google Find My Device portal.
Secure the Flashtool software and the specific FTF file for the Xperia C C2305 Go to product viewer dialog for this item. . Download C2305 Xperia lock remove ftf
Move your downloaded FTF file into the firmwares folder inside the Flashtool directory. Flash Mode: Turn off your device If the device is linked to a Google
You will need a PC, a micro-USB cable, the software, and the correct firmware file . How to Remove the Lock Using FTF Move your downloaded FTF file into the firmwares
Open Flashtool, click the lightning bolt icon, select , and choose your
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)
If you prefer official methods that don't require third-party tools, you can use: