Hello there Jun Song! Thanks for sharing! The ROM provided from xiaomi.eu is not official, and I'm not sure about the reliability of it, nor if there are constant updates available for it. You could use it, but be really cautious! I don't advise you to use it though. The monthly security patch from google and xiaomi is beneficial for the Mi A1 phone!|
Unless....you are willing to use the China stable ROM to force yourself to use chinese haha!