I have the note 4 and the 5.0 update caused all kinds of problems on my phone. The 5.1.1 update has mercifully fixed the issues. My sister has the note 3 and I recommended to her to wait to do the 5.0 until after the 5.1.1 is available. When might that happen?
We don't have any word that the Note 3 is even getting 5.1.1. All of our device's page will have the latest software information on them. If you're still having problems, we'll need to do some troubleshooting to get them resolved for you.