This is so easy copy ur IMG file to ur internal storage ,
# download etchdroid from play store
https://play.google.com/store/apps/details?id=eu.depau.etchdroid
#select raw image or iso 
(Do these steps after u have plug in ur scard)
#select ur IMG file and ur scard 
#wait until it completes the progress 
U can check the progress in the taskbar(notification)
Done 
.......
The app is user friendly