I am getting more and more tired of my iPhone/iPad constantly nagging me to update. These are the steps to take if your device has already downloaded the new iOS image. If your device hasn't already downloaded the update, please skip down to step #8.
1. Tap Settings
2. Tap General
3. Tap Storage & iCloud Usage
4. Tap Manage Storage under "STORAGE"
5. Find and tap iOS update (in this case iOS 9.3.1). Takes a little bit for the list to populate.
6. Tap Delete Update
7. Confirm Delete Update
Now you have to go to another part of Settings to stop the device from automatically downloading updates...
8. Under Settings, Tap on iTunes & App Store
9. Toggle off Updates
And that's it! Just remember to manually check for updates regularly and update your device from time to time. Especially when there is a security update.
Thanks!







