Flashtool - 0.9.23.2
Sony Xperia devices have unique DRM keys responsible for camera noise reduction, clear audio+, and widevine L1. Unlocking the bootloader deletes these keys permanently —unless you back them up first.
Flashtool 0.9.23.2 is a specialized desktop utility designed for Sony Xperia devices, primarily used to flash stock ROMs (firmware), kernels, and basebands. While it is an older version of the software, it remains a "gold standard" for enthusiasts maintaining or restoring legacy Xperia hardware. Core Functionality Firmware Flashing: Its primary purpose is to install Flashtool 0.9.23.2
Despite its stability, you may encounter issues. Sony Xperia devices have unique DRM keys responsible