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13 maj 2012 · 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. PRAM RESET. Shut down the computer.
22 lis 2018 · Follow these instructions for resetting the PRAM/NVRAM: Reset NVRAM or PRAM on your Mac - Apple Support. Follow these instructions for resetting the SMC: How to reset the System Management Controller (SMC) on your Mac - Apple Support
14 lip 2014 · You can recreate the NVRAM reset's ⌘-⌥-P-R with a PC keyboard by pressing: Windows Key + Alt + P + R
For a desktop, follow these instructions: Shut down the computer. Unplug the power cord. Plug the cord back in after 15 seconds have passed. Wait at least 5 seconds and then turn on your Mac. If these steps fail to resolve the issue, repeat them one more time.
20 wrz 2022 · 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.
23 mar 2019 · Resetting PRAM through Terminal. Ask Question. Asked 5 years, 7 months ago. Modified 4 years, 7 months ago. Viewed 34k times. 5. For some reason, my Mac won't let me reset my PRAM in the usual way (by holding the relevant keys down when restarting), simply nothing happens when I try it and my Mac just boots up normally every time.
