Hello! I'm relatively new to the Android OS and was looking to upgrade from the leaked 5.5.893 to 5.9.901. I'm not rooted, but not sure that matters for this. Read that I needed to do this via stock recovery, and had a question about that: Does the stock recovery process erase my settings, installed apps, & other personal data that was previously on my phone? If it does, what's the best way to back them up and restore afterwards? Thanks!