How to Install a Custom ROM using TWRP Recovery

What is an Android Custom ROM?

The term ROM stands for Read-Only Memory. A custom Android ROM refers to a phone’s firmware, based on Google’s Android platform. Being open source, any developer can edit the Android code, recompile it, and re-release for a plethora of new devices out there in the market. We, as users of these devices, have the option to install ROMs to change a device’s appearance or functionalities.

Custom ROMs are developed by the Android community, mostly by a group of core developers. Most of these releases are completely free as they are mainly being developed by developers out of passion. You can find custom ROMs for phones, tablets, media players, smart watches and all other types of device that run on Android OS.

Steps to Flash a Custom ROM on any Android Device using TWRP recovery

1. First, you will need to download and transfer the custom ROM you wish to flash to your device’s storage.
2. Next, boot your device into TWRP recovery. (Here is the Method to boot into Recovery)
3. Select the “Wipe” option from the TWRP main menu and Select the “Advanced Wipe” Then Check This Option  “Dalvik Cache , Cache , Data, Internal Storage  , System”   enable a “Swipe to Wipe” on the bottom of the screen.
   
   
   
4. Go back to the TWRP main menu, tap on the “Install” option and select the custom ROM’s .zip file that you transferred to your device earlier (Step 1). 
   
5. After selecting the .zip file, enable “Swipe to Confirm Flash” on the bottom of the screen to begin the custom ROM installation process. Be patient as this might take some time.
6. Once your custom ROM is successfully flashed, hit the “Back” button on-screen and then select “Reboot System.”

You are done! Your device will now reboot with the custom ROM that you flashed. It might take some time to rebuild cache and finish boot as it is the first reboot after the custom flash. So do not panic if it takes a little longer for the Reboot process to complete. You can follow the 1st method to install SuperSU ROOT File also.