Xiaomi bootloader unlock is a pain
xiaomiApply for unlocking Mi phones
http://www.miui.com/unlock/index_en.htmlWanted to unlock, reached maximum SMS, how long blocked now?
http://en.miui.com/thread-781915-1-1.htmlXiaomi's locked bootloader is insecure and useless · GitHub
https://gist.github.com/trietptm/3d789ba61ad767bd4efd9aab36edd982GitHub - mc-17/xiaomi-bootloader: Xiaomi BL research
https://github.com/mc-17/xiaomi-bootloader