FlashTool является прошивочной программой, Dalvik-кэша * Оптимизация (установка JIT v2) * Flashtool - 4PDA

for Sony FlashTool means:

To use the Windows version ( flashtool-0.9.10.1-windows.exe ), users typically follow these steps:

This particular 0.9.10.1 release was a milestone. It was more than just a software utility; it was the "full version" of freedom for Xperia owners. Unlike Sony’s official PC Companion

Once the software is installed, follow these steps to flash your device:

Battery Charge: Ensure your phone has at least 50% battery before starting.