This process is for rooted devices only.
I'm not responsible if you mess your phone in any way. Read the instructions carefully.
If you have not rooted your device, learn how to root it using kingroot or using iRoot from here.
Download the IMG file you want to flash.
Download and install flashify from playstore.
Grant SuperUSer access to flashify by tapping Alow when it pops up.
Under the flash tab, choose Boot image if you want to flash a boot image or Recovery image if you want to flash a recovery image (CWM, TWRP, Philz or even Stock Recovery).
You can also download the latest CWM, TWRP or Philz recovery of you device from within this app (sounds cool but this is only for some selected device).
Click Choose a file
Select any of your file explorer app
Navigate through the file explorer and select the IMG file you want to flash
Select Yup and wait for the process to complete.
Hello if you like the work I'm doing here you can donate anything to keep the engine running ;)
Like my facebook page