[Samsung Galaxy S7 Edge Questions and Answers] android404:
I suggest you don't try this, since you're a new user and you're having a hard time even finding the appropriate thread. You can actually ruin your phone beyond repair by misunderstanding one thing, pressing one wrong button or forgetting one small thing. Nevertheless, the thread is here: https://xdaforums.com/s7-edge/development/recovery-official-twrp-hero2lte-3-0-0-0-t3334084

I think the instructions in this thread aren't quite up to date (format data). I rewrote the instructions to be more clear. I did follow all these yesterday (running NOUGAT) and it worked for me. But I'm no dev. Don't ask me for help if you get any problems, small or disastrous.

FULL STEPS FOR OBTAINING Root ON THE EXYNOS VERSION OF THE GALAXY S7 EDGE (SM-G935F/FD/X, SM-G935K/L/S, SM-G935W8)

A. There has to be an external SD card in your phone.

B. You have to be on an Axxx firmware.

C. Backup everything. You will lose all your data, apps, pictures, settings. Everything except the content of the external SD.

D. If you lack either A, or B, or C, or if you do anything any different than described here, you risk ruining your phone. I can't help you if you do anything wrong.

E. If you do everything right but you have a bad download, you accidentally remove the USB cable in the wrong moment or your pc loses power, you might end up with a ruined phone. This is never risk free.

F. You will lose your warranty.

1.In your ROM, go to Settings -> About device. Tap 7 times on Build number to enable Developer options.

2. Go to Settings -> Developer options. Enable OEM unlock.

3. Download Odin_3.12.3.zip and extract it to your computer. https://build.nethunter.com/samsung-tools/Odin_3.12.3.zip

4. Download and install Samsung Mobile Phone Drivers. http://developer.samsung.com/galaxy/others/android-usb-driver-for-windows

5. Download twrp-3.0.1-1-hero2lte.img.tar https://eu.dl.twrp.me/hero2lte/

6. Turn off your device.

7. Connect it to your pc through USB and don't disconnect before you're done with step 24.

8. Hold [Power] + [Volume Down] + [Home] buttons until you reach the Download mode warning screen.

9. Press [Volume Up] to continue.

10. Open Odin, press [AP] and navigate to the TWRP tar file from step 5.

11. Select [Options] and disable Auto-Reboot.

12 Press [Start].

13. Wait for Odin to say [PASS]

14. Hold [Volume Down] + [Home] + [Power]. When the screen gets black, immediately move the [Volume down] finger to [Volume up]. Don't let go the other two buttons.

15. If you don't see the TWRP boot splash try again from step 6.

16. In twrp, swipe right to allow system modifications, then go to [Wipe]

17. Don't go to [advanced], dont check any boxes, but chose [format data]. Write [yes] when instructed.

18. Download the latest SuperSU by Chainfire

https://download.chainfire.eu/1021/SuperSU/SR3-SuperSU-v2.79-SR3-20170114223742.zip

19. Without exiting TWRP, transfer the SuperSU zip to the external SD card in your device through “my computer”in Windows.

20. Flash superSU using [Install] in TWRP.

21. Download no-verity-opt-encript-5.1.zip and

without exiting TWRP, transfer the no-verity-opt-encrypt zip to the external SD card through Windows. https://build.nethunter.com/android-tools/no-verity-opt-encrypt/

22. Flash the zip using [Install] in TWRP.

23. Go to [Reboot] -> [System].

24. Wait 2-5 minutes for your device to finish setting itself up.

---------- Post added at 12:28 PM ---------- Previous post was at 12:26 PM ----------

Don't do it. I don't guarantee a single thing.

---------- Post added at 12:34 PM ---------- Previous post was at 12:28 PM ----------

Make three backups in twrp before you flash supersu. One for boot, one for efs and one for everything.