My hackintosh Sierra has working fine for 3 days before last night. After the last restart, my machine can not boot, even can not boot to the bios set up screen. It jus displays a blank black screen for few seconds and the computer went to sleep forever. I can't take any actions on it.
Is there any ideas about my problem? Please give me an advice, thank you all.
Is there any ideas about my problem? Please give me an advice, thank you all.