The Galaxy Note 4 easy fix
We're going to throw this one out there straight away. If you have recently updated your Galaxy Note 4, whether you are experiencing catastrophic problems or minor complaints, you should restart your device. Think of it as giving your Note 4 a little power nap. You will be surprised at how many problems this can fix.
Hold down the power button > tap "power off" > remove the battery > after 30 seconds, reinsert the battery and then hold the power button to switch it back on.
Galaxy Note 4 battery drain problems
Some users are experiencing some battery life issues after downloading the Android Lollipop update. While this could be a natural side-effect of the update (it does not provide an increase in battery life in all cases, sadly), the best way to find out is to do a factory reset.
We have written a detailed guide on how to factory reset the Galaxy Note 4, but only attempt this if you have exhausted our Galaxy Note 4 battery tips list first.
Galaxy Note 4 GPS signal problems
The Galaxy Note 4 GPS is prone to losing connection, and it's a tricky thing to fix. Where possible, connect to Wi-Fi or 3G/4G to give your phone as much support as possible when trying to determine your location. Check out our how to improve GPS signal article for more help.
Go to settings > location > make sure it is switched "on" (hit "agree" if prompted) > tap "mode" > ensure it is set to "high accuracy"
Galaxy Note 4 Bluetooth and Wi-Fi connection problems
Bluetooth and Wi-Fi problems, hello again old friends. If there is one problem destined to plague your Galaxy Note 4 it is that of connectivity. Often this can be solved at the source, restarting a router or Bluetooth device, and if that doesn't work...
Go to settings > Bluetooth > unpair with any previously paired devices > turn off Blueooth (tap the slider) > turn on Bluetooth and try to reconnect with devices again.
Go to settings > Wi-Fi > forget your Wi-Fi channel > turn off Wi-Fi > turn on Wi-Fi and reconnect.
Galaxy Note 4 camera crashes
Camera apps are known for crashing, particularly when launched from the lock-screen. Updates can also mess with your camera app (the poor Nexus 5 camera had a torrid history with updates), so if you've found your camera, or any other app, acting up recently, a solution is fairly simple.
Go to settings > application manager > all > camera (or other app) > tap "clear data". And, if you don't mind losing any of your camera defaults or preferences, hit "clear cache".
If you've encountered any other Galaxy Note 4 Lollipop problems, let us know in the comments below and we'll see if we can provide some solutions.