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23 mar 2019 · I'm not sure where you're getting -p -r as boot args to reset NVRAM, but sudo nvram -c should do the trick on High Sierra, as Tetsujin states here. When you're done, reboot into recovery mode once more, open Terminal and then re-enable SIP with csrutil enable, and reboot into High Sierra.
14 lip 2014 · I would like to try resetting the PRAM again to avoid a trip to the Apple Store if possible, but since the keyboard isn't recognized... well, how do I reset the PRAM? Is there a way to do it without a keyboard? Or is there a similar key sequence on a non-Apple keyboard?
29 sty 2014 · Unplug the computer's power cord and ALL peripherals. 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.
Resetting the PRAM in anything less than 10.7 was ⌘ + ⌥ + P + R. Recovery mode now seems to override the PRAM command.
12 mar 2024 · Reset NVRAM on your Mac - Apple Support If one or more settings stored in NVRAM don't work as expected on an Intel-based Mac, resetting NVRAM might help. support.apple.com
iPad (3rd generation) Manuals and Downloads - Apple Support. Quick Links. If you forgot your Apple Account password. If you forgot your iPhone passcode, use your Mac or PC to reset it. If you want to cancel a subscription from Apple. Update your iPhone or iPad.
If you're experiencing weird glitches with your Mac, doing a reset of your MacBook or desktop Mac could help. Here's how to reset the NVRAM, PRAM, and SMC on either an Intel or M-Series Mac.
