Features of recovery on Android phone:
◾Wiping of dalvik cache.
◾Perform NANDROID backup.
◾Flash custom ROMs. e.t.c
Steps How to Install Custom Recovery on Android Phone
CWM Using ROM Manager:
In this method you just have to install an app and it lets you root your phone. Know that in this method in order to proceed with installing custom ROM, make sure your phone is rooted. This method uses an app to install custom recovery on android, so this method is quite easy even for the beginners.
◾Firstly download and Install ROM Manager from Google Play Store. Or Install it from APK file on your Android phone.
◾After the installation of ROM Manager on your phone tap on Recovery Setup.
◾Now select the option of ClockWorkMod Recovery under the tab Install or update recovery.
◾Now you will have to confirm correct model of your phone.
◾After that select the option of Flash ClockWorkMOD recovery.
ROM manager will require for root access, grant it.
You’re Done. Now ROM manager will download and flash ClockworkMOD recovery on your phone. After the new recovery is flashed. Turn off your phone. When its completely shut down. Press Volume up, Power button and home button for some time till you enter into custom recovery menu.
How to Flash TWRP custom recovery:
The post below shows the two method to follow when flashing custom recovery on your Android phone. Use the following guide to flash TWRP custom recovery on your phone.
◾First of all head over to TWRP website and see if your device is listed in compatible devices.
Download the .ZIP file compatible with your phone.
◾Place the downloaded file into internal storage or SDcard of your phone.
◾Turn off your phone.
Boot into recovery by pressing Volume Up+ Home + Power button, you will need to have a custom recovery to flash TWRP.
◾Select install (TWRP)l or Install zip from Sdcard (CWM).
Select the .zip file of TWRP and Install it.
Flashing TWRP Recovery Using App
This is the easiest methods, it’s just downloading the app and using it to install custom recovery just like in ClockworkMod recovery, it is the easiest method to install TWRP.
◾Firstly Download TWRP Manager App from Google Play Store.
◾Install the app.
◾Launch and Select Install TWRP
◾Select your device from device list.
◾Tap on Install Recovery.
◾Now reboot your phone. That’s it.
Note:** You can also install TWRP but downloading the .ZIP file from official site with respect to your device and then convert that .ZIP file to .TAR.MD5 and then flashing it using ODIN
Feel Free to ask questions, if you are having any problems using the above method on how to flash/install custom recovery on Android phone, feel free to ask in the comments. There are other methods to install custom recovery on android, but the one mentioned above is the easiest and simplest.