Hello, first of all I would like to congratulate you on the initiative of the forum, I bought my redmi note 4x MTK in 2017, it is my first xiaomi phone, I will undoubtedly exchange for another of xiaomi as well. But I currently have a problem that I believe to be solved only with the reinstallation of a rom if bugs, because after upgrading to miui 10, I noticed a great loss in battery performance, my wife has a redmi 4X and his performance has not changed at all with the upgrade. I fixed the bootloader, but stopped there, I could not install TWRP to install the rom, I could not understand the procedure, if possible I would like someone to explain or send me a video of youtube explaining, I believe that only then can I solve my battery problem. Thank you all.