I just buyed redmi 13C codename air not gale/gust. i have been using this phone for 10 months and it works better on miui but since i updated this to hyperos 1 and then 2, everything is slow. even 2 pages of chrome cant handle it.i need to unlock bootloader and install a custom recovery/rom. Can someone help me?and i know you say "Try with Xiaomi community" trust me, i tried this 18 times and it says quota has reached please try again later M/D etc..