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13 maj 2012 · PRAM RESET. Shut down the computer. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step. Turn on the computer. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
- iMac SMC and PRAM Reset
Unplug the computer's power cord from both the wall and...
- iMac SMC and PRAM Reset
29 sty 2014 · Turn on the computer. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears. Hold the keys down until the computer restarts and you hear the startup sound for the second time. Release the keys.
Unplug the computer's power cord from both the wall and computer. Wait 15 seconds. Attach the computers power cable. Wait another 5 seconds and press the power button to turn on the computer. PRAM RESET. Shut down the computer. Locate the following keys on the keyboard: Command, Option, P, and R.
23 mar 2019 · Hold down Cmd-R and press the Power button. Windows keyboard should be Win-R instead. Keep holding the keys down until the Apple logo appears, then release. Wait for macOS to boot into the recovery utilities window. From the Utilities menu, choose Terminal. Then: csrutil disable, then exit, then reboot into High Sierra as normal.
20 wrz 2022 · Step 1 SMC Reset. Follow these steps for iMac, Mac mini, Mac Pro, and Xserve. Choose Apple menu > Shut Down. After your Mac shuts down, unplug the power cord. Wait 15 seconds. Plug the power cord back in. Wait 5 seconds, then press the power button again to turn on your Mac.
On the laptop keyboard, press and hold Control-Option-Shift (your Mac might turn on). Hold these keys for 7 seconds, then press and hold the power button. If your Mac is on, it will turn off...
17 sie 2022 · To reset the SMC on a MacBook Pro or MacBook Air with the Apple T2 Security Chip (models from 2018 to 2020): Shut down your Mac. Press and hold the power button for 10 seconds , then restart.
