REQUIREMENTS
The following guide is made for the Sprint Samsung Galaxy S7 smartphone that comes with the SM-G930P model number. There is a method that involves all Qualcomm versions which include the AT&T variants, but this is not that version. We do not recommend following this guide on any other device unless you have been advised to do so by a professional. You can check the model number of your Samsung Galaxy S7 smartphone by tapping on the Menu > Settings > About Device > Model Number.

BEFORE WE BEGIN
You need to unlock the Developer Options menu on the Samsung Galaxy S7 smartphone by tapping on the Menu > Settings > About Device > Build Number. Once you tap on the build number a certain number of times (usually seven), it gives you a message on the display that says you are now using the device as a developer. That is when you know the Developer Options menu is unlocked.
Enter the Developer Options menu and enable the USB Debugging Mode by tapping on the Menu > Settings > Developer Options > USB Debugging. Once you have tapped the box for the USB Debugging so that it is no longer empty, you can exit the Developer Options menu, and the Android operating system remembers your preferences.

HOW TO ROOT SPRINT SAMSUNG GALAXY S7 SM-G930P RUNNING ANDROID 6.0 MARSHMALLOW UPDATES
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Read more:-
http://gsmarena24..com/2016/07/how-to-root-sprint-samsung-galaxy-s7-sm.html?m=1

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