Grey screen on startup
I have a late 2010 Macbook Pro 15" running High Sierra, that won't complete start up. The Apple logo and progress bar appear, but about 3/4 of the way through, it goes to a blank grey screen and stays there or powers down.
I have tried the following:
- Remove peripherals - no effect
- Safe boot (Shift key on startup) - no effect
- Reset PRAM - no effect
- Reset SMC - no effect
- Remove extra RAM - no effect
- Start in Recovery mode (Command+R) - won't start in recovery mode, just starts us the same way
- Internet Recovery mode (Option+Shift+Command+R) - Spinning globe, then logo, then grey screen
- Boot from USB drive - Won't boot. I select the USB drive and it goes through the same routine (logo with progress bar, then grey screen). I've even disconnected the hard drive and tried to boot from USB drive. No dice.
- Run hardware test - will run test, but finds nothing wrong
The only thing that does work is booting is single-user mode (fsck) (command+s) When I get in, I type in the command /sbin/fsck –fy and get the response, "The Volume appears to be OK." I don't really know what else I can do in single user mode.
Any other ideas (except take it to an Apple Store) would be appreciated!
MacBook Pro