It's 10.0.1.0.
Why is it imperative to have the latest Android version? I would have been happy with an older version, but newer MIUI features and continued development
Yup, your pessimism was sadly well deserved by Xiaomi. Considering older phones still have updates, I never even considered they will kill the updates so soon. I hope at least they solve the Facebook/messenger bug in the last promised update. If there is any...
Xiaomi still supports some 4+ years phones. China ROM is discontinued because Chinese users lost interest in this phone. Globally it's still popular enough, so global ROM will still be updated. For a while...
Seems I have solved the earpiece volume getting worse and worse problem.
One day I found my phone dirty with some kind of syrup/honey in the earpiece area, so tested it and found the gunk definetely got inside the grille and the speaker was barely audible. That forced me to try a desperate...
I get about the same SOT with all the MIUI ROMs since Nougat, 3-4h. 3h or less when gaming, more than 4 when not. Latest Oreo is still the same. You might have a worn battery, and no ROM will solve that.
I think that is a feature. If phone is unlocked, presumably you are trying to start an app or something, so it does not go full screen to let you do whatever you wanted to do without dismissing the call.