Hi, I have just gotten a Mi4 3/16 (it says MI 4W in the specs) from a friend of mine: it has 4.4.4. KTU84P and xiaomi.eu 7.1 stable 22.214.171.124. Does this mean the bootloader has already been unlocked and I can flash a newer xiaomi.eu ROM? Which version do you suggest for my device? Thanks!