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For newer MacBooks with the T2 security chip, release the keys after the Apple logo appears for the second time.Most MacBooks will play the startup sound, indicating that you can release the keys. Press and hold Option + Command + P + R for about 20 seconds.Either can be at fault for your trackpad issues, and resetting them follows the same approach. They both hold dedicated configuration settings for your system. Reset the Parameter RAM (PRAM) or Non-Volatile RAM (NVRAM)ĭepending on your model and age of MacBook, it will use either PRAM or NVRAM. If your Mac has a T2 security chip, reset the SMC by pressing and holding Control + Shift + Option and the Power button for seven seconds, then reboot your Mac.ĥ.Release them and restar the MacBook, which should reset the SMC and get your trackpad working again.For a Mac with a non-removable battery, hold down Ctrl + Option + Shift on the keyboard, then press and hold down the Power button for ten seconds.Press and hold the Power button for five seconds, then reinstall the battery and power up the Mac.If your Mac has a removable battery, remove that as well as the power source.