Without waste of time Team Win Recovery Project developers have made TWRP 3.0.2 available for the all new Samsung Galaxy Note 7, making it pretty much easy to root.
Thanks to Chainfire for its 'systemless' root: you can root your Galaxy Note 7 without modifying system partition or cause damage to your device system, just in case something goes wrong while rooting.
It's safe and works just fine. Follow the simple guide below to flash TWRP and root your Samsung Galaxy Note 7.
Disclaimer: Your use of this guide is entirely at your own risk. If this guide damages your your device, you take sole responsibility for it.
Flashing TWRP 3.0.2 On Galaxy Note 7
- After downloading the files listed above, and the exact TWRP for your variant, run and install Samsung USB drivers on your PC
- Extract Odin 3.12.3 to your desktop
- Go to Settings -> About device on your phone. Tap Build number 7 times to enable Developer options.
- Now go to Settings -> Developer options. Going back just once will display this settings option immediately above About device.
- (*) Enable OEM unlock.
- Reboot your device into Download mode. To do this, select reboot from the power menu and hold the Volume Down + Home buttons while your device reboots.
- Once in Download mode warning screen, press Volume Up to continue.
- Now connect your device to PC via USB
- Run Odin, select AP slot and choose the downloaded TWRP tar file.
- Disable Auto-Reboot option, then press Start.
- Once flashing process is complete, disconnect phone from PC and hold Volume Down + Home + Power to leave Download mode, and immediately swap to Volume Up when the screen blanks.
- TWRP splash screen should now display. If it doesn't, repeat steps 8-9.
- While in TWRP, connect device to PC
- Copy SuperSu zip package to the root of your sdcard
- Disconnect phone from PC and flash the SuperSU zip package