My note 4 battery is draining rapidly after the lollipop update. I've read that some have had to do a factory reset and that has resolved the issue but (and forgive me for asking) doesn't that wipe everything from your phone? There has to be a better way. I've got so much music and pictures I don't want to lose and I'm not very savvy when it comes to transferring stuff.

Any thoughts? It's much appreciated!!!