In the Flashtool installation folder, locate and run the Drivers installer. Ensure you select "Flashmode" and "Xperia C" drivers.
This process erases all user data including contacts, photos, and apps. Requirements: Download C2305 Xperia lock remove ftf
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. In the Flashtool installation folder, locate and run
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) Requirements: An FTF file is a packaged firmware
If you prefer official methods that don't require third-party tools, you can use:
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.
When prompted, hold the button and connect the phone to your PC via USB. Release when the tool detects the device in "Flash Mode".