![]() ![]() Release the power button and reinstall the battery.With the battery removed, press and hold the Power button for five seconds.Remove the battery from the bottom of your MacBook.How to reset the SMC if your Mac does not have a T2 security chip: Reconnect the power cable and wait five seconds.Press the Power button again to restart your Mac.Keep holding all keys for another seven seconds, then release them.Keep holding them all for seven seconds, then press and hold the Power button with the other keys.Press and hold Control (Left) + Option (Left) + Shift (Right).If it turned back on, shut it down again from the Apple menu. Now press and hold the Power button for 10 seconds.Then wait for your Mac to finish powering off. Open the Apple menu and Shut Down your Mac.How to reset the SMC if your Mac has a T2 security chip: Find out if your Mac has a T2 chip from the System Report window. First, follow this link to find out if your Mac uses a T2 security chip, then follow the relevant instructions below. The method you need to follow to reset the SMC depends on your particular Mac. You won’t lose any data from resetting the SMC, and it only takes a minute to try it. Many users found that resetting the SMC on their Mac resolved issues they were experiencing with macOS Big Sur refusing to accept their password. The system management controller (SMC) is present in Intel-based Mac computers and is responsible for tasks related to the power supply, battery, fans, and other Mac features. ![]()
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