I got a gift a Iphone 5 from US that have iOS 8 firmware. I want to Update it to iOS 9. After I tried to restore it, I got a error in iTunes telling me "The iPhone could not be restored because the firmware file not compatible" I downloaded the official firmware online, and use the latest iTunes from Apple.
Now my iPhone is stuck on the recovery screen, and I can't use it. I need a express help to recover my device.
Do I downloaded a wrong iOS firmware? How Can I fix this problem?