3. Wi-Fi and Bluetooth Issues
Phone’s connectivity can also get severely hit if there is an unpatched bug in the software update. if you are facing a Wi-Fi related issue then first you must check if the Wi-Fi modem and router are working fine. Of course, this is possible only when you are at your home and not when connected to a public Wi-Fi.
For those situations, you can forget all the saved Wi-Fi connections and connect with the known ones by re-entering the passwords. This fix will also work for issues related to Bluetooth. You can forget all the paired devices from your newly updated Samsung Galaxy phone and start fresh by reconnecting to the device you wish to.
— Sujoy Shivde (@FluidicJoy) February 21, 2017
4. Random Reboots
This could be a major issue after updating your phone with Android Nougat but isn’t that common. It might require you to take your phone to the service centre, but before that, you can try some simple fixes by yourself. First off, try to do a proper restart of the phone and in most cases, this fixes the issue. If it doesn’t you can try to update all the apps on your phone. Alternatively, you can even clear App Data and Cache.