issues after restoring iPhone 6 from backup: many apps grayed out
In iTunes 12.1.2.27 I backed up iPhone 5, 16 GB, with iOS 8.3 (including apps) and then restored the backup to a new iPhone 6, 16 GB, with iOS 8.3.
The restore finished successfully but I see that many apps are not working on the iPhone 6: their icons are grayed out and when I try to start such an app the text below the icon says "Waiting..." but the app never opens.
I tried to power off the iPhone a couple of times but to no avail.
The phone has Internet connection over mobile network as well as over WiFi network.
In Settings > General > About I see the following:
- On the old iPhone 5:
Applications: 77
Capacity: 12.6 GB
Available: 4.3 GB
Model: MD297CM/A
- On the new iPhone 6:
Applications: 53
Capacity: 12.0 GB
Available: 9.6 GB
Model: MG472ZD/A
It seems as the restore did not transfer all 77 apps but only 53. What could be the reason for that?
I'd like to avoid reinstalling the defunct apps. How to solve this issue?
-- rpr.
iPhone 6, iOS 8.3