After the latest Version of Sailfish 184.108.40.206 becomes available yesterday, I decided to flash another device.
Therefore I tried to follow the instructions from the official Sailfish X installation guide here.
Unfortunately it doesn’t work with the Sony sa0114 ADB Interface Driver. Looking on the official Sony website for unlocking the bootloader here it says something about the USB driver.
So maybe it would be good to update the official installation process for windows?