iPhone 4S which was on iOS 7 (i forget the exact version) & was jailbroken. Turned off Find My iPhone, signed out of my account & then went to erase all content & settings in preparation for giving the phone to my mum. 3 hours later & that circle thing on the centre of the screen which is like a loading indicator - it's still there & still 'rotating'. This must've surely timed out & it hasn't worked properly? How long do these things take? And if it has timed out then how do i get to any other screen now?