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Sometimes, you may find your iPhone won’t download or update apps on App Store, even though you have plenty of storage space, have good network connection and have the latest iOS version (iOS 10.2.1) installed on your iPhone. Everything with your iPhone seems all right, but you still cannot download apps from App Store or update the apps you’ve already downloaded.

1. Reset your network settings
If apps won’t download or update on iPhone because of network connection issues, you can reset your iPhone network settings to fix this problem. Go to Settings on your iPhone, tap General > Reset > Reset Network Settings.


This will erase all the saved Wi-Fi passwords and you’ll need to rejoin a Wi-Fi network before downloading or updating apps on App Store.

2. Sign out of App Store and sign in again
To sign out of App Store, go to Settings > iTunes & App Store, tap your Apple ID and choose Sign out.


Now you can sign into App Store with the same Apple ID or with another Apple ID. Then, go to App Store to see if you can download/update apps.

3. Download/Update iPhone apps with iTunes
If you can’t download or update apps on iPhone 7/SE/6s/6/5s, you can connect your iPhone to computer and then download or update apps with iTunes.

Im using Windows Movie Maker, and I want to make it that the screen of the video is black for the first four seconds or so, but still have the audio playing. Can anyone help?

Apps not downloading or updating on iPhone may be due to various reasons including poor network connection, software bugs, ios glitches, wrong settings, etc. To fix it well, you could try the following tips.
1.Check network settings. Go to Settings> General >Reset>Reset Network Settings.
2.Check restrictions settings. Settings > General >Restrictions.
3. Check iPhone storage space.
4. Fix iPhone with an ios repair tool. TunesKit will help you completely resolve it without data loss.
5.Restore iPhone via iTunes.
6. Contact Apple Store.