Xiaomi, the nightmare for Samsung and Apple in China, has been doing pretty well with its flagships Mi3 and Mi4 smartphones all over the World. Recently they have released Mi4 in India and received good response from Android folks.
By default, Xiaomi Mi3 and Mi4 comes with customized Android OS called MIUI. In term of specifications and specially look/interface, nothing beats MIUI but when it comes to latest Android support, then Cyanogen Mod ROMS can replace any ROM. Now since Android 5.1 Lollipop based custom ROM are available for both Xiaomi Mi3 and Xiaomi Mi4, then it worth a try.
- Your Xiaomi should be 70% or more charged.
- Ensure that you have complete backup of all your important data.
- Your Mi3/Mi4 should be rooted with CWM recovery installed on it.
- Download Xiaomi Drivers and install them on your computer.
Though by rooting your Xiaomi Mi3 or Mi4, the warranty will void but no need to worry as you can get warranty back by flashing stock MIUI ROM.
- Download Android 5.1 Lollipop Custom ROM for Xiaomi Mi4 or Mi3 [Download the correct ROM for your model]
- Download Gapps
How to Update Xiaomi Mi3 and Mi4 to Android 5.1 Lollipop
Step 1: Once you have downloaded the Android 5.1 Lollipop ROM zip file and Gapps for your Xiaomi Mi3 or Mi4, place them on desktop.
Step 2: Connect your Redmi 2 to your computer and transfer the download zip files to your phone SD card.
Step 3: Turn Off your phone and boot it to recovery mode.
Step 4: In recovery mode, first tap on “wipe data factory reset” option to perform a factory reset. Once this is completed, go to advanced options and select “wipe the cache” followed by “dalvik cache” options to clear the cache.
Step 5: Go back to main recovery menu and select “Install zip from sd card” followed by “choose zip from SD card” and select the ROM zip file you have transferred to SD card in Step 1. Once ROM flashing is completed, repeat the same step for GAPPS.
Step 6: After Android 5.1 Lollipop custom ROM installation, repeat the above step # 5 for Google Apps (GAPPS).
Step 7: Once installation of both custom ROM and GAPPS is completed, go back to main recovery menu and reboot your phone which might take few extra minutes for first reboot.
You did it. You have successfully updated your Xiaomi Mi3/Mi4 powerhouse to last Android 5.1 Lollipop OS and have unlocked awesomeness. Special credits goes to Androids DNA.