The Device must be rooted
1. Download the appropriate custom recovery for the device and copy to External Sd
2. DOWNLOAD and Install Flashify.
3. Run flashify.
4. Click on 'Recovery Image' Tab.
5. Click on 'Choose a file' Tab.
6. Navigate to external Sd and select the custom recovery.
7. Select the custom recovery.
8. Confirm to flash the recovery.
9. Device will reboot to custom recovery after successful flashing.