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)
Move your downloaded FTF file into the firmwares folder inside the Flashtool directory. Flash Mode: Turn off your device
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. Download C2305 Xperia lock remove ftf
In the Flashtool installation folder, locate and run the Drivers installer. Ensure you select "Flashmode" and "Xperia C" drivers.
The official Sony Support tool features a "Software Repair" option that can reset the device and remove locks. The tool will wipe the cache and user data
You will need a PC, a micro-USB cable, the software, and the correct firmware file . How to Remove the Lock Using FTF
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. Flash Mode: Turn off your device An FTF
, using an is a common technical solution. This process involves "flashing" a specific firmware file onto the device using software like Sony Mobile Flasher (commonly known as Flashtool). Understanding FTF and Flashtool