Hi there,
I’m struggling to get my friends’ 2010 15″ MacBook Pro to boot up. It suddenly stopped working.
When booting, a stripe of noise appears on the screen above the Apple logo, before the screen goes white and then the computer restarts.
I’ve tried all of the standard troubleshooting. I’ve taken out the HD and that’s working fine. I’ve tried booting it from OS X installed on an external drive. I’ve tried reinstalling OS X from a bootable USB. In all cases I eventually get to the above, even after it asks me which disk to boot from.
Help?