My MacBook won't boot past the grey screen (white unibody MacBook 15", Intel-based, dual core).
I installed an illegal copy of Snow Leopard onto my Mac (as legal copies were not available in my country at the time).
It doesn't boot up anymore, but sometimes when I hold down the option key it boots.
I've installed linux mint onto it, and it works – or rather it worked fine. More often than not it doesn't even boot into target disk mode (no hard drives appear nor the Mac installation disk).
More often than not it doesn't boot the os installed or reads the installation disks. Its just a blank grey screen. No icon or anything.
However on the rare occasion that it does boot as it should in target disk mode, hard disk appears and if an installation disk is inserted, it is read perfectly and after selecting one of the targets, it boots fine. Problem is, this normal boot only occurs like 1 out of 30 attempts.
I have tried:
- Resetting the SMC - can perform
- Resetting the NVRAM and PRAM - can perform
- Boot into safe mode - cannot perform
- Boot into verbose mode - cannot perform
- Removing the battery and holding the power down for a minute