i Tunes Authorization basically tells Apple that the apps, music, and media you have purchased belong to you, and that you have the rights to them and thus that media can be copied and synced to your i OS devices.If you encounter authorization specific problems related to the 5 device limit, you may need to deauthorize other machines before you are able to sync the i OS device with the current one.It is one of the worst issues you can face as a device owner.If you’re among those who face this issue, then you’d be glad to know that there are ways to fix i Phone not downloading apps or i Phone won’t update apps issue.Personally, I prefer to manually sync my music and media, so I have all of the individual content sync features disabled and sync everything myself through drag & drop.If syncing fails, the Sync button is greyed out and not available at all, or if you try to sync and nothing transfers over to the i Phone, i Pod, or i Pad, you may simply need to authorize the computer with i Tunes: This is a surprisingly common problem and it’s extremely easy to resolve.While many i Phone owners love their device to death, a majority of them face problems which disrupts their experience.One of these issues is the failure to download or update apps from the App Store.
Now try to download or update the app, and the problem should be fixed.All you need to do is visit Settings, tap the Wi-Fi icon, and click the icon beside the Wi-Fi network. This step has worked for several i Phone users to fix the “won’t update and download apps” issue.This is one of the simplest way to solve the problem of i Phone not downloading or updating apps.Once the i OS device has been restarted, try syncing again. Try using Wi-Fi syncing instead to see if that works.Yes restarting the computer can be annoying, but sometimes just restarting a Mac or PC is enough to resolve the problem and get things syncing again. USB syncing is usually the most reliable method, and it’s not terribly uncommon for wi-fi sync to be a bit more picky.