Flashtool 0.9.18.6 -

Version 0.9.18.6 is quite old (circa 2014-2015). It lacks support for newer Xperia devices (e.g., Xperia XZ Premium and later) and may have bugs with Windows 10/11. Modern usage typically requires 0.9.28.0+ or 0.9.30.0+ for newer devices/OS support.

(Advanced – requires a rooted device with dd commands). flashtool 0.9.18.6