all i have is this...
Roms for Redmi 3/PRO, Mi4S, Mi5, Note 3 PRO, MIMAX, MIMAXPro:
Unlock your first bootloader
Install TWRP zip via Updater app or Fastboot mode, then install our ROM
wow... that was very easy... im not a noob in TWRP and custom firmware... but are these really the steps...