An unknown error occurred error number." If you still see the error message, find your error below to learn what to do.
If you still see the error message, you can check for outdated or modified software or contact Apple Support.
Then try twice more to restore your iPhone, iPad, or iPod.
Check for hardware issues If you see error 53, learn what to free TV Episodes Download do.
Make sure that your USB cable, computer, and network are reliable.
If you don't have it, try windows Snipping Tool Free Download a different Apple USB cable.
Update to the latest version of iTunes, then use recovery mode to restore your device to the latest version of iOS.
" " The device isn't eligible for the requested build.
If you see one of the errors below, you might have a USB connection issue: 13, 14, 1600, 1601, 1602, 1603, 1604, 1611, 2001, 2002, 2005, 2006, 2009 An error message that includes, "invalid response" Use these steps to see if the issue is with.
If you still see an error message, contact Apple Support.
Select your error to learn what to do: 1, 2, 3, 4, 6, 9, 10, 11, 12, 13, 14, 16, 17 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 53, 56 1002, 1004, 1011, 1012, 1014, 1601, 1602, 1603, 1604, 1611.
Wait for the download to finish and try again.
Try again after each step: Use the USB cable that came with your device.
Check for outdated or modified software If you see error 1015 or a message that says The required resource can't be found your device might have unauthorized iOS modifications jailbreaking.
If the issue continues, contact Apple Support.
" Check for communication issues If you see error 1671, iTunes is downloading necessary software.