Has anyone started experiencing problems with MacBook Pros since the latest Apple OS updates in which the screen goes blank/black? After a hard shutdown, the screen does not restore. MacBook is fully charged.
MacBook Pro, Mac OS X (10.7.5), MacBook purchased December 2012.
Hello Blessed_One,
Thanks for using Apple Support Communities.
If I understand your post correctly, your Mac will start up, but you are only seeing a completely black screen. To help troubleshoot this issue please reset the SMC and NVRAM on your Mac.
How to reset the SMC
See the appropriate section below for your Mac notebook or desktop computer.
On Mac notebooks with non-removable battery
Mac notebook computers that have a battery you should not remove include: MacBook Pro (Early 2009) and later, all models of MacBook Air, MacBook (Late 2009), and MacBook (Retina, 12-inch, Early 2015).
To reset the SMC:
- Shut down the computer.
- Plug in the MagSafe or USB-C power adapter to a power source and to your computer.
- On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
- Release all the keys and the power button at the same time.
- Press the power button to turn on the computer.
On MagSafe power adapters, the LED might change states or temporarily turn off when you reset the SMC.
On Mac notebooks with removable battery
Older MacBook and MacBook Pro computers have removable batteries. Learn about removing the battery on MacBook and MacBook Pro.
To reset the SMC:
- Shut down the computer.
- Disconnect the MagSafe power adapter from the computer if it's connected.
- Remove the battery.
- Press and hold the power button for five seconds.
- Release the power button.
- Reconnect the battery and MagSafe power adapter.
- Press the power button to turn on the computer.
Resetting the System Management Controller (SMC) on your Mac
Resetting NVRAM
- Shut down your Mac.
- Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
- Turn on your Mac.
- Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
- Hold these keys until the computer restarts and you hear the startup sound for a second time.
- Release the keys.
After resetting NVRAM, you may need to reconfigure settings for speaker volume, screen resolution, startup disk selection, and time zone information.
If issues related to these features continue on a desktop Mac (like an iMac, Mac mini or Mac Pro), its logic board battery may need to be replaced. The logic board battery on desktop computers helps retain NVRAM settings when your Mac is unplugged. You can take your Mac to an Apple Store or Apple Authorized Service Provider to replace the battery on the logic board.
How to Reset NVRAM on your Mac
Take care.
macbook pro screen goes black since last OS update
