2012 Mac Book Pro Missing Startup Disk
I have a problem I haven't quite found an answer for.
I have a 2012 Mac Book Pro running Yosemite that recently completely froze during use and wouldn't respond after several minutes. I held down the startup button to restart, and the startup screen went to a folder with a question mark.
I was able to restart in safe mode, and for good measure backed up my important items to external hardrive (thank you Jebus).
Restarted to the Startup disk successfully, but this lasted 15 minutes tops before freezing again, and showing the question mark folder.
I held down option to check the disk, however in disk utility it only shows OSX base system, no drive can be found at all.
I cannot start it in safe mode. Won't open FSCK. Zapping NVRAM did nothing. Can't open target disk or singer user mode. Can't reinstall OSX mountain lion (no disk can be found).
I'm at a loss here, and am definitely outside of apple care warranty. Any advice? Taking it to a genious bar is out of the question (too far away), so any potential DIY fixes are preferred.
Thanks,
H
MacBook Pro (13-inch Mid 2012), iOS 8.1.3, null