I accidental clicked on the Bluetooth icon in right top corner I
Of screen which turned off my Bluetooth now my mouse doesn't work. How do I get Bluetooth back on
Go to System Preferences, Bluetooth and turn it back on
Press and hold the power button to force a shutdown. Disconnect all USB devices. Press the power button again briefly to start up.
It's best to have a USB keyboard and mouse available for this kind of situation.
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