I have been searching the internet for days on how to root the Note 5 N9208 dual sim and finally found something that seem stable.
DISCLAIMER: I am by no means taking credit for this root method, I am just sharing what I found because I know how hard the information can be to find on the internet. As you should already know, with flashing there is always a risk so you are always responsible for you own device
1. First you are going to want to enable OEM Unlock and USB debugging in the developer option.
2. Go to Samsung app store and get the CROM service app. (this is needed so you can flash custom roms, on some phones you won't be able to flash anything if you don't do this step)
3. Download Permissive kernel (from xiaolu) for N9208 with auto root: N9208-TW-Root (0909) .tar flash it with Odin3.10.7 (extract tar-file from zip, put it in section and flash AP)
At this point you should now have root, beyond this step will explain how to get TWRP recovery.
4. Official TWRP for Samsung Galaxy Note 5 DUOS you can found here ... (download tar-file, put it in AP section and flash with Odin3.10.7).
This information was accumulated by searching the web. My thanks goes out to all developers who help me to arrive at a root solution. If you, a developer come here and see a violation that I overlooked please inbox me and I will rectify it right away Thanks again