How to unroot andriod phone

Rooting your device can give you a lot more control over it, but it also will usually void your warranty and make repairs a hassle. Luckily, you can quickly unroot most devices with a few simple steps. Things are a little trickier for Samsung Galaxy devices, but with the right tools it will still only take a few minutes.
Manually Unrooting
                      Install Esfile expoley 

Press so in pictur

And you see

root exploler>And allow super user >>

Uninstall sytem app>>super user>uninstall>ok

Now your phone is unrooted 

Its work 100% any andriod phone