Originally Posted by hasbrone
So...I take the boot.img and replacement within the "ZIP" of MIUI.
From where I download the MIUI?
Yes. Make sure you delete the one inside (if there is a boot.img already inside, it will be located in the main area as soon as you open the zip) to make sure, then put the other one in the same location. Don't try to extract the zip though, you will want to download 7zip
and "open" the zip to make adjustments.