Most likely, Samsung will not update the Galaxy Note 5/S6 Edge Plus beyond Android 7.0 Nougat but there is an easy way to upgrade and install Android 8.1 Oreo + root by installing a custom ROM. This is the Lineage OS 15.1 custom ROM for the Galaxy Note 5 and S6 Edge Plus, which works quite well even for a beta version.
For those of you who want to root your Samsung Galaxy Note 5 on latest Android 7.0 Nougat, you will want to use Magisk root method so you can still use Android Pay, Pokemon Go, Snapchat, or any other apps that may not run with rooted phone. Rooting your Galaxy Note 5 with Magisk will allow you to hide root from such apps and also enjoy root at the same time.
This tutorial will teach you how to root your Samsung Galaxy Note 5 on the latest Android 6.0/6.0.1 Marshmallow. This root method WILL ERASE EVERYTHING on your phone so MAKE SURE TO BACKUP EVERYTHING BEFORE starting, YOU HAVE BEEN WARNED!!!
Step 1. Go to Settings->About device and check the model number of your phone. This method supports the following models of Galaxy Note 5:T-Mobile SM-N920T Sprint SM-N920P Canadian SM-N920W8 Korean SM-N920K, SM-N920S, SM-N920L Note 5 DUOS SM-N9208 SM-N920C, SM-N920G, and SM-N920I US Celluar SM-N920R4
For those of you looking to try Android 6.0 Marshmallow based on TouchWiz with root for T-Mobile Galaxy Note 5 SM-N920T, there is a preview version you can try out right now.
This is an early edition of what the final firmware will look like and everything works but the battery seems to drain faster than usual. Of course, I do advise you to wait until the official version is out but if you cannot wait or simply want to try it out, here’s how to do it.
For those of you who want to get the most out of your Samsung Galaxy Note 5, you will definitely want to root it and install a custom ROM. Rooting method has changed for new phones with latest Android 5.1.1, now all Android phones will require a custom kernel with root enabled. Basically, you can install “auto root” kernels, which will give you root.