How to Back up Your Nexus 7 Tablet
Your Google account information from your Nexus 7 tablet is backed up automatically. That information includes your address book (from the People app), Gmail inbox, and Calendar app appointments. Because the information automatically syncs with the Internet, a backup is always present.
To confirm that your Google account information is being backed up, heed these steps:
At the Home screen, touch the All Apps icon.
Open the Settings app.
Choose Google from beneath the Accounts heading.
Touch the green Sync button by your Google account name.
Ensure that blue check marks appear by every item in the list.
Yeah, there are a lot of items. They all need blue check marks if you want those items backed up.
Touch the Back navigation icon twice to return to the main Settings app screen.
Choose Backup & Reset.
Ensure that a check mark appears by the item Back Up My Data.
You should see a blue check mark there. If not, touch the square to add one.
Beyond your Google account, which is automatically backed up, the rest of the information can be manually backed up. You can copy files from the tablet’s internal storage to your computer as a form of backup.