All I know about Xiaomi is that I bought a phone from them because the hardware specs were pretty good and the bootloader was unlockable. Upon trying to unlock the bootloader, I was told my account must be 30 days old (effectively, that I must have owned the phone for 30 days). Annoying, but not that unreasonable if it's some kind of anti-theft protection or something. After 30 days, every time I press the button for the first step of unlocking, I am told that I should try again on tomorrow's date. Apparently every 6 months they change the roadblocks to bootloader unlocking, and as of this moment there is no simple way to do it (their server no longer processes the requests), with rumours they plan to permanently disable it. This is pretty bad for my trust in their brand.