Apple Bluetooth Magic Mouse unable to connect back after Mac OS X wake from sleep or after restart. Follow below solution methods to fix the Bluetooth connectivity issue and connect back Magic Mouse to your MacBook.
[Solved] Bluetooth Magic Mouse not connected after Mac OS X Restart or Wake from Sleep
Content Summary
Solution 1: Turn Bluetooth Off then On
Solution 2: Remove Magic Mouse then pair again
Solution 3: Reset Bluetooth using Debug option
Solution 4: Reset Bluetooth using command
Solution 1: Turn Bluetooth Off then On
Step 1: Open System Preferences, click on Bluetooth, and then click the Turn Bluetooth Off button.
Turn Bluetooth Off then On again.
Step 2: After few seconds, click Turn Bluetooth On button to turn on Bluetooth.
Solution 2: Remove Magic Mouse then pair again
Step 1: Open System Preferences, click on Bluetooth.
Step 2: Remove the Magic Mouse from the Devices list.
Remove the Magic Mouse from the Devices list.
Step 3: Pair again the Bluetooth Magic Mouse.
Solution 3: Reset Bluetooth using Debug option
Step 1: Press Shift + Option keys and click the Bluetooth icon on the menu bar to activate hidden Debug option in Bluetooth menu.
Step 2: Select Debug > Remove all devices.
Select Debug > Remove all devices.
Step 3: Hold down the Shift + Option keys again, and open the Bluetooth menu. Select Debug > Reset the Bluetooth Module.
Select Debug > Reset the Bluetooth Module.
Step 4: Pair again Magic Mouse.
Solution 4: Reset Bluetooth using command
Execute below command to restart bluetooth daemon on Mac OS X without restarting
sudo kextunload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport sudo kextload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
Reference: restart_bluetooth.sh