Key Needs
Download Samsung Kies from here
Download Samsung Mobile drivers from here
Method
Make sure your on latest version of Kies
1) Install Samsung Mobile drivers
2) Install Samsung Kies
3)Take a backup of your SD-card or Internal memory, now format it
4) Reboot Your PC and Mobile
5) Go in Application >Development >USB Debugging uncheck(important) it
6) Start Kies and plug in your mobile connect your mobile select option Kies mode
7) Done wait till its done
Note:If you face problem mobiles not responding reboot the mobile.
Comments and if your like you should subscribe it