Stuck on boot screen after restore from backup.
Hi guys,
I'm stuck on a boot screen with Apple logo after I restore my iPhone from backup using iTunes. After I've chosen a backup version, I hit restore button, and after few minutes iTunes said "The iPhone will restart and after that it will sync with iTunes", after that iPhone restart, the screen come up with highest brightness and then lower to lowest brightness and freezing. So what should I do now? I don't want to update to iOS 9 or lose all backup data. Please helps me.
iPhone 5s, iOS 8.1, null