NOTE: This will only work on MIUI Chinese Developer ROM. Make sure you have installed it OR get MIUI 7 Chinese devloper ROM from here .
This Root allows you to explore system apps and even modify them to your specific need. This will help you to get ported features by developers on your phone and even give you the opportunity to modify yourself. Running low on space? You can delete unnecessary system apps and gather up some useful space all with rooting your phone. This could be useful for budget Android phones that dont come with a lot of internal storage.
Step by Step Instructions :
Step 1 : First of all you need to download and install an App from Google Play Store which is popularly known as Flashify. (Get it from here!)
NOTE: Give Root access to Flashify App using default Security App on MIUI 6/7 ROM.
Step 2 : Download TWRP and SuperSU Zip file in your mobile from here :
Step 3 : Extract the TWRP 2.8.7.0 zip file in your mobile using file manager like ES File Manager.
NOTE: Do not extract SuperSu Zip. (It is Flashable)
Step 4 : Now Open Flashify App that you have downloaded in Step 1
Step 5 : Select Flash Image file and Choose twrp-2.8.7.0-ferrari.img file and Flash it. Now Reboot your device and you are almost done.
Step 6 : Switch off your device again and press Volume Down + Power Button simultaneously. Now you will be in TWRP Recovery Mode.
Step 7 : Tab on Install and navigate to SuperSU Zip file. Just flash it by swiping below and you are now completely done. Just Reboot your device.
Thats it! Your Xiaomi MI 4i is now rooted on Android 5.0.2 official software. Check the SuperSU app in your MIUI home. Also, verify with Root Checker App to confirm.