Attention to detail helps to update Android Nougat manually on your Samsung Galaxy Tab S2, and on other new Android tablets. Firstly, before updating to Android Nougat, back up the data in the not so cheap tablet and maintain 60 percent battery. Note that the Galaxy Tab A 9.7 inch tablet, which was released two years ago, would also get a Nougat update soon. Below is how to update the Galaxy Tab S2 released this year to Android Nougat build manually.
Unlocking the USB Debugging lets you connect the Galaxy Tab S2 to the PC and enabling OEM Unlock unlocks the bootloader on Galaxy Tab S2. If you don’t enable the OEM Unlock option, your device OS may become bricked, so proceed to the next steps only after enabling that hidden feature in Android.
If you see ID: COM in the Odin tool with an added message in the Odin Message Box, then that means the Odin tool recognized your Galaxy Tab S2 properly. If the ID: COM doesn’t show in the Odin tool, then that means your USB driver needs to be updated or you should establish a connection between the PC and Galaxy Tab S2 with a different USB cable.