The prerequisites before performing this method are:
- your device should be rooted
- Your boot loader should be unlocked
Install Custom Recovery Using Flashify
Download the custom recovery image file for your device and copy it to the internal memory, please don’t download the zip file because it’s not going to work.
Now download an app called Flashify from the play store which is free. After the installation is complete open the app and here you will see some option like boot image, recovery image and zip file.
Click on the recovery image and choose the custom recovery
image file which you had downloaded Earlier.
This will pop up just click ok and install the image file. Afterwards your device will reboot and boot directly into the custom recovery which you had installed.
That’s it! You have successfully installed the custom recovery, and can now flash tons of custom ROMs and mods for your device.