Backup your iPad
It is very important to backup your iPad before installing an iOS update. Although Apple has improved the reliability of their software, it is still common for us to hear about atleast one user who loses their data because an update didn't go as expected.For complete backup instructions, see this How to back up your devices using iCloud or iTunes.
These are the basic instructions for backing up to iCloud. If you don't have enough iCloud space, you can delete some data or follow the instructions for backing up using iTunes on a computer.
- Open Settings
- Click iCloud, then Backup
- Enable backup, then select Back Up Now
You must be on WiFi for the backup to begin and you should be charged to at least 50% or be plugged into a power source.