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Tune-up a MacOS Device: Difference between revisions
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** NOTE: If you use [https://support.apple.com/en-us/HT204085 iCloud Keychain], any wireless networks you have connected to, ''on any Apple device also connected to iCloud Keychain'', will appear in the list of preferred networks. | ** NOTE: If you use [https://support.apple.com/en-us/HT204085 iCloud Keychain], any wireless networks you have connected to, ''on any Apple device also connected to iCloud Keychain'', will appear in the list of preferred networks. | ||
*[https://support.apple.com/en-us/HT204063 Zap the PRAM] (also called NVRAM) | *[https://support.apple.com/en-us/HT204063 Zap the PRAM] (also called NVRAM) | ||
** For M1 and M2, shut down the computer. Leave it off for several seconds and the M chip is supposed to detect if there's anything wrong and reset it. Then power it back on. There's no actual keyboard command to reset it anymore. | |||
** Reboot, then hold command-option-P-R until you hear the chime twice | ** Reboot, then hold command-option-P-R until you hear the chime twice | ||
* Boot into [https://support.apple.com/en-us/HT201262 Safe Mode] by holding Shift during the startup chime | * Boot into [https://support.apple.com/en-us/HT201262 Safe Mode] by holding Shift during the startup chime | ||