Flashtool-0.9.11.0-windows.exe ((better)) -

: This version introduced the ability to back up and restore the TA (Trim Area) partition. This is critical because it contains unique device DRM keys that are permanently lost if a bootloader is unlocked without a backup.

The installer file, flashtool-0.9.11.0-windows.exe , is approximately 629 MB when fully extracted and is designed for . How to flash your device - Sony's Developer Portal flashtool-0.9.11.0-windows.exe