Samsung has updated both the Galaxy S6 SM-G920F and S6 Edge SM-G925F to official Android 7.0 Nougat firmware based on TouchWiz UX, a good thing to do is to install TWRP on your phone. As it is the most used recovery on Android phones, it will be a nice addition to the already awesome features of the Nougat update.With each Android update Google tightens the security of the system and with Samsung’s Knox on top, things can get a little hard for the developers working to hack a device and find loopholes to root the phone. Thankfully, it didn’t take them a month to find a working root method for the Galaxy S6 & S6 Edge running the official Android 7.0 Nougat from Samsung.

Preparation Before Begin
1. If you root your phone, it void your phone warranty, and u can’t get it back.
2. Before do all thing , developer Option menu must be unlocked and USB Debugging mode enabled from developer option.
3. Before u doing these steps , you hav to unblock ur bootloader your device.
4. You have to back up your android phone, before doing this. It will erase ur all data, contacts, and apps.

Read more:-
https://gsmarena24..com/2017/03/how-to-root-and-install-twrp-galaxy-s6.html