Q: I was trying to restore my iphone 5 whenever it stopped restoring so now it is in recovery mode. Whenever I try to restore it, when it gets to the "restoring iphone firmware" it says an unknown error occured (-1). Apple says to update itunes and my c

Hi ersinbek,

I understand that you're trying to restore your iPhone, but are getting an error (-1) which is preventing you from successfully restoring the device. Fortunately the steps outlined below can help get your iPhone restored successfully.

1. Check that your security software and settings aren't blocking your device from communicating with the Apple update server.
2. Then try to restore your iOS device two more times while connected with a cable, computer, and network you know are good.
3. Make sure that your security software and settings are allowing communication between your device and update servers.
4. If you still see the error message when you update or restore, contact Apple support.

If you still see the error message, check for outdated or modified software.

Get help with iOS update and restore errors
https://support.apple.com/en-us/HT204770

Sincerely