So my iPhone isn't turning on and it's stuck on recovery mode, I've tried plugging it in to the computer and holding down the off/on switch along with the home button and the apple logo won't even come up and iTunes won't complete the recovery, I get the error message;
'The iPhone could not be restored, an unknown error occurred (1604)'
I've been searching online for an answer and can't find anything. Can anyone help me out?
Many thanks.

