Here's a non-exhaustive list of the bugs on my Xiaomi phones:
- Battery draining from 100% to 10% overnight, while in sleep mode, energy usage showing "screen activity". Goes on and off, I suppose depends when the Chinese government decides to do a data examination.
- Video mode on the camera takes 10-30 seconds to start. If you plan to film Bigfoot, make sure you turn the camera on some minute before he makes his brief appearance. No update ever fixed this, if anything it broke other things as well and made it worse (sometimes it just hangs and never starts video mode).
- Speaking of updates, the rule with Xiaomi is that any update will break more than it will fix. With guaranteed some new annoying crap, usually worse than what you're trying to fix. After my last Xiaomi slowed to a crawl, whenever I charged it it basically bricked itself, nothing but a hardware restart turned it back on, I broke my rule and updated. Only to end up with a notification "Looks like you performed a factory reset (spoilers: I didn't!). Connect to the network and restore MIUI" with two buttons "Not Now" and "Restore". Pressing "Not Now" will keep popping the annoying notification and "Restore", after taking an inordinate amount of time, fails. Great job, Xiaomi developers!
- Taking pictures is fine but to examine them I need the patience of a saint. For 20-30 seconds or more it just hangs and shows me a white preview. I guess it needs to pass them through the Chinese cloud for approval first or something. One workaround I found is to take a picture, open gallery, press "share" on the white loading crap and send it to WhatsApp. I can then examine it in WhatsApp while Galery still hangs on Chinese cloud AI processing.
Fuck Xiaomi! Never again!