The specific lock removal .ftf file is an unofficial, third-party package designed to bypass the screen lock or FRP (Factory Reset Protection) on a Sony Xperia Z5 Dual Go to product viewer dialog for this item. .
If you specifically need to flash a stock .ftf file to clear a bootloop or restore the OS, use community-trusted archives rather than arbitrary "lock remove" files: Download E6633 253 R8C Lock Remove ftf
This will completely reinstall clean, official Sony firmware. 3. Community Firmware Repositories The specific lock removal