But once the contacts between them are loose, dusty, or damaged, the computer won't start up normally.
It occurs after you have recently upgraded to a new macOS or have update firmware.You must be wondering about the causes of the black screen issue on Macs like MacBook Pro. The other one is when you can perceive some response from your Mac, such as MacBook Pro shows a black screen with chime, MacBook screen goes black after a few minutes of booting, MacBook Pro screen is not working but keyboard lit, etc.
One of them is when you may find no response pressing the power button, in other words, the MacBook won't turn on at all. There are two possible scenarios that you could be going through. If you are facing the black screen of death issue after pressing the power on button in your Mac (MacBook Pro, MacBook Air, iMac or Mac Mini), don't be thrilled, even you can’t use your Mac normally or access the data on it, it doesn't mean the certain death of your device.