Step 4: Make Sure Your Files & Data Are Backed Up
Before you install your Nexus Marshmallow update, you're going to want to ensure that all of your files and data are backed up. We don't anticipate widespread installation issues but we almost always see some problems emerge so you'll want to be ready.
You’ll want to ensure that Auto Backup is turned on for your important files. To make sure this is in effect, head over to Google’s website. It offers in-depth Auto Backup tutorials that will ensure that your precious files will be stored safely.
If you use cloud-based storage services, now would be an excellent time to check up on those and make sure your files are backed up and that they're where they're supposed to be.