Press the power button and then press command-option-p-r. You have to make sure you get those keys pressed before the gray screen comes up or it won't work. Hold those keys down until your Mac reboots again and you here the startup chime. Let go of the keys and let your Mac reboot normally.
Thereof, what keys would you press on Mac to perform a PRAM reset?
How to Reset PRAM or NVRAM
- Power off your Mac.
- Press your Mac's power button and then hold these four keys at the same time: ⌘ + option + P + R.
- Continue holding the keys until your Mac restarts for the second time. On older Macs, the chime will sound upon restart.
Beside above, how do I run SMC on Mac? Press Shift-Control-Option on the left side of the built-in keyboard, then press the power button at the same time. Hold these keys and the power button for 10 seconds. If you have a MacBook Pro with Touch ID, the Touch ID button is also the power button.
Also Know, how do I reset my SMC and PRAM?
To start:
- Shut down the computer.
- Press the power button.
- Immediately after, press Command, Option, P, and R all at the same time on the keyboard.
- Hold these keys down until you hear the Mac's startup sound for a second time (the first was after the initial press of the power button).
- Release all of the keys.
How do I reset my Apple pram?
PRAM RESET
- Shut down the computer.
- Locate the following keys on the keyboard: Command, Option, P, and R.
- Turn on the computer.
- Press and hold the Command-Option-P-R keys.
- Hold the keys down until the computer restarts and you hear the startup sound for the second time.
- Release the keys.
