UGuess what... I got it working! Downloaded google translator and found my way to the mi band option. Now the thing is, I set my iPhone language back to mine but app Yeelight still is in Chinese.
I'm afraid if I unistall it and install back I'll lose the mi band pairing with the ceiling light...
Edit: never mind. App is back in English after I changed the region also back to mine.
The mi band icon still is on ceiling light... will it work still?