INFO!!!
This tutorial is for all who use a Xiaomi.eu Rom and for which there is currently only a Fastboot version. You can update any kind of Xiaomi.eu Rom (TWRP or Fastboot) also with a Fastboot without losing data. For a new installation you take the "first install" script.
INFO! Latested Firmware Updates can be found on Xiaomi.eu -> STABLE ROMS