There are various methods available on the internet about installing the custom recovery in the android phones. Many of them tells you to root your android before installing the recovery. We know that rooting the android phone is illegal for some of the manufactures and by doing this, we void our warranty. But nevertheless this method gives you step by step demonstration of installing recovery on any android smart phone. So lets Start.

Requirements: Android Mobile, Laptop/Desktop, USB Cable

Disclaimer: This is a method of installing recovery image by pc. Author of this blog will not take responsibility of any harm to your devices by this method. Try this at your own risk.


STEP 1: Before starting anything, firstly download the suitable custom recovery for your android mobile phones. We are providing you some open source custom recovery website link below so download appropriate file from here.
http://pintient.com/2svK
http://pintient.com/2svo

STEP 2: After downloading this, download another file from the below link and extract it on to the desktop.(WinRAR Required)
File:  http://babblecase.com/2ma0
WinRAR Setup: http://babblecase.com/2ma3

STEP 3: In your android mobie settings, go to developer options and tick on Enable OEM Unlock.


STEP 3: Now switch off your android phone and Reboot into Bootloader by pressing Power+Volume Down Key simultaneously.

STEP 4: After this, connect your mobile with computer through USB Cable and open Command Prompt. For opening command prompt, just click on start menu and run the command ''cmd''. (Make Sure Fastboot Driver is installed in your PC).


STEP 5: Type cd in the command window and give space and then drag that extracted folder named (Plateform tools) to the command prompt window and hit enter.


STEP 6: Paste the downloaded Custom Recovery image file in that platform tools  folder and named it as recovery.img

STEP 7: Type "Fastboot Devices" in the cmd window and hit enter. It will show the device ID conneted. If it is not showing the device ID then driver is not installed.


STEP 8: Type Command "fastboot flash recovery recovery.img" in the command window and hit enter then your custom recovery will install.


STEP 9: Again type command "fastboot reboot"

STEP 10: To open the phone in recovery mode, Just switch off the phone and Press Power + Volume UP Key Simultaneously.

Thanks

Source: Google