MBP crashed, now won't boot (ends up with blank screen)
Hi,
My MacBook Pro (15" early 2011) crashed when waking up, the screen looked like it was split and the two halves connected end-to-end, with the spinning beach ball. I pressed the power button to shut it down, and now it won't boot again.
I get the startup chime, then the Apple logo and progress bar, but after a while that changes to a blank white/grey screen (of slightly different shade), and then nothing happens. (I thought maybe it just takes a long time to get going so left it on overnight, but in the morning 12 hrs later it was still blank.)
I've reset the SMC and NVRAM/PRAM (several times). I've also tried all the various startup key combinations but none work, so I can't get into recovery or safe mode, they all end up with the same blank screen.
Trying to boot with D for diagnostics gives me a black screen with the message "Unable to run diagnostics. DEC500", then another black screen with more text flashes by (so quickly that I can't read it) and the computer shuts down.
Any suggestions (short of 'bin it and buy a new one')?
TIA,
r8pe
MacBook Pro 15″, macOS 10.12