my redmi note 3 mtk still on lolipop.....when we will have 6.0 at least? this is annoying :( . Thanks xiaomi.eu for your work, it`s not your fault for keeping this device on lolipop
you need to flash a dev rom and then login from developer options to your mi account you will see there bootloader options in your phone. you will also need to ask xiaomi for bootloader unlocking permision