632      iPhone_iPad_Mac_apple

iPad iOS 11 install problem

iOS 11 was downloaded to my iPad can't be installed. What is the problem?

Be sure you have an upgradeable model. iPad G2 can only be upgraded to iOS 9.

See the chart below to determine whether you can upgrade your device and to what you can upgrade. If you do not have a Software Update option present on your iDevice, then you are trying to upgrade to iOS 5 or higher. You will have to connect your device to your computer and open iTunes to update.

iPhone, iPod Touch, and iPad iOS Compatibility Chart

     Device                                       iOS Version

iPhone 1                                       iOS 3.1.3

iPhone 3G                                    iOS 4.2.1

iPhone 3GS                                  iOS 6.1.x

iPhone 4                                       iOS 7.1.x

iPhone 4S                                     iOS 9.x.x

iPhone 5                                       iOS 10.x.x

iPhone 5c                                     iOS 10.x.x

iPhone 5s                                     iOS 11.x.x

iPhone 5se                                   iOS 11.x.x

iPhone 6                                       iOS 11.x.x

iPhone 6 Plus                              iOS 11.x.x

iPhone 7                                      iOS 11.x.x

iPhone 7 Plus                              iOS 11.x.x

-------------------------------------------------------

iPod Touch 1                               iOS 3.1.3

iPod Touch 2                               iOS 4.2.1

iPod Touch 3                               iOS 5.1.1

iPod Touch 4                               iOS 6.1.x

Pod Touch 5                               iOS 9.x.x

iPod Touch 6                              iOS 11.x.x

-------------------------------------------------------

iPad 1                                          iOS 5.1.1

iPad 2                                          iOS 9.x.x

iPad 3                                          iOS 9.x.x

iPad 4                                          iOS 10.x.x

iPad 5                                          iOS 11.x.x

iPad Pro 12.9”                             iOS 11.x.x

iPadPro 9.7”                                iOS 11.x.x

iPad Mini & Mini Retina               iOS 11.x.x

iPad mini 2                                  iOS 11.x.x

iPad mini 3                                  iOS 11.x.x

iPad mini 4                                  iOS 11.x.x

iPad Air                                       iOS 11.x.x

iPad Air 2                                    iOS 11.x.x

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Select the method most appropriate for your situation.

Upgrading iOS

   1. How to update your iPhone, iPad, or iPod Touch

   2. iPhone Support

   3. iPod Touch Support

   4. iPad Support

     a. Updating Your iOS from iOS 5

          Tap Settings > General > Software Update

     If an update is available there will be an active Update button. If you are current,

     then you will see a gray screen with a message saying your are up to date.

     b. If you are still using iOS 4 — Updating your device to iOS 5 or later.

     c. Resolving update problems

        1. iOS - Unable to update or restore

        2. iOS- Resolving update and restore alert messages

最后更新：2017-09-25 07:30:06

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