This problem is mainly manifested in the following aspects:
① After selecting "File-Device-Transfer purchased items via iPhone" in iTunes, it cannot be transferred;
② When clicking the "Backup" button in iTunes to create the latest backup, or restoring the previous data to other iOS devices through iCloud cloud backup, the original application only restores the icon and layout, and still needs to wait for each application to be downloaded and installed from the App Store again, and the data no longer exists.
What if iOS9 can't be backed up and restored?
Apple has recognized this problem and promised to completely solve it in the subsequent version of the system update. It is worth mentioning that for this reason, Apple also stopped iOS9' s "App Thinning" slimming project, and 16GB users temporarily missed the benefits of adding extra available space.
What if iOS9 can't be backed up and restored?
Friends who got the iPhone6s and iPhone6s Plus for new activation may have found that after logging into the iCloud account, Apple gave a separate description page of "Prompt before recovery", which gave a specific temporary solution. Let's have a look.
Temporary solution: Apple requires users to use old devices to open the App Store, check and update all installed software before restoring through I cloud cloud backup, then go to Settings -iCloud- Backup, choose immediate backup, wait for iCloud cloud backup to be completed, and then return to new devices such as iPhone6s and iPhone6s Plue to back up from iCloud.
Users who are troubled by the above problems and don't know how to migrate the applications and data of old iOS devices to new devices may wish to solve them temporarily according to this method.