The primary use. If your phone is stuck in a boot loop or you want to downgrade your OS, this installs official Unlocking Bootloaders:
Unlike the official "Sony Companion" software, which is designed for average consumers to update to the latest official software, the is an unofficial, community-developed utility. It allows users to flash FTF (Flash Tool Firmwares) files.
: Primarily used on Windows; however, newer versions (0.9.36.0+) also support Linux and macOS.
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