Don't Panic if There Are iOS 9 Problems
If you run into iOS 9 problems tomorrow or after the iOS 9 release date, don't panic.
We expect there to be problems with the iOS 9 update. These issues will likely include some familiar faces like abnormal battery drain, issues with Wi-Fi, problems with Bluetooth, and more.
If you run into an iOS 9 problem, know that you have plenty of resources at your disposal. We've put together a list of fixes for common iOS problems that will serve as a great starting point. Commit these fixes to memory right now.
Apple’s discussion forums are also an excellent place to look. Users will share their own issues and perhaps offer temporary or permanent fixes that worked. Those forums are usually overflowing with messages on the first day of an update’s availability.
Social media sites like Twitter are also helpful places to go should something come up during the iOS 9 installation process or in the hours after its release.
Apple is usually pretty quick to update if there are major problems so if there are widespread issues, expect an iOS 9.0.1 update soon.
The company's already confirmed an iOS 9.1 update for release and it's expected to deliver new features and fixes to iOS 9 users in October or November.