Elias held his breath as the green bar crept across the screen. This was the version that fixed the FSC (Flashtool Script) issues of its predecessors. It was the bridge between the old Gingerbread days and the newer Marshmallow builds. Flashing finished.
It utilizes the S1 flashing protocol, which is essential for interacting with the bootloaders of most Sony devices released between 2010 and 2013. Essential Pre-Requisites flashtool 0.9.18