After you upgraded your iPhone to iOS 11, you can obviously experience the new changes of iOS 11. iOS 11 is different from the previous iOS system, so this tutorial aims to show you the most common iOS 11 problems and solutions.
* iOS 11 consumes iPhone battery?
Go to Settings -> Battery, to check which app consumes the battery most. Then turn the app off.
Turn off your seldom-used apps in Settings -> General -> Background App Refresh.
Don’t change the WiFi network frequently.
* Can I download iPhone from iOS 11 to a lower iOS version?
iOS 10.3.3 is still signed, you are able to downgrade iPhone from iOS 11 to iOS 10.3.3, you may take this tutorial How to Downgrade iOS 11 Final Back to iOS 10.3.3 Using 3uTools? as reference.
* Siri doesn’t work after upgrading?
Go to Settings -> Siri, turn Siri on.
If you have turned Siri on, turn it off first and then turn it on again.
* Why I can’t receive the iOS 11 update notification reminder?
You may stop the iOS software update notification reminders before, go to Settings -> General -> delete this description file “tvOS 10 Beta Software Profile”. Then you can upgrade your iPhone to iOs 11 via 3uTools.
* I can’t change the photo of my Apple ID after upgrading?
Restart your iPhone. Go to Settings -> click Apple ID -> Edit-> choose take a photo/ choose a photo, then you can set your photo successfully.
* I can’t download apps from iTunes after upgrading?
To check if you have logged in your Apple ID successfully. If yes, go to App Store to download again. Or you can directly download the apps you need in 3uTools.
* Do I need to upgrade iPhone from iOS11GMseed to final iOS 11?
You don’t need to upgrade your iPhone again, because iOS 11 GMseed firmware and the final iOS 11 firmware are the safe one.
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