Magic Mouse 2 Not Working After macOS 27 Update? How to Fix It

Your Magic Mouse 2 shows as connected after the macOS 27 Golden Gate update, yet the pointer sits still and clicks do nothing. This post covers the fixes in the order I would try them, starting with the fix reported most often.

Why is my Magic Mouse connected but not working on macOS 27?

The mouse pairs with your Mac, but macOS is not reading its input. The device worked on macOS 26 Tahoe, so the mouse itself is fine in most cases.

Reports on user forums describe the same pattern. Bluetooth settings list the mouse as connected. The pointer does not move, scrolling does nothing, and gestures fail. Toggling Bluetooth off and on does not help.

One troubleshooting guide from iBoysoft says the bug depends on the Mac model, background software, or interference. This fits what you see in practice: some Macs show no problem at all, while others lose the mouse right after the upgrade.

What should I do first when the mouse does not respond?

Switch to the keyboard or a trackpad so you are able to reach settings. A MacBook trackpad works. On a desktop Mac, plug in any USB mouse or use these shortcuts:

• Press Command-Space to open Spotlight, type "Bluetooth", and press Return.
• Press Tab and the arrow keys to move between items.
• Press Space to select a highlighted button.

If you have a second Mac or an iPhone with a mouse-compatible setup, test the mouse there first. A mouse which moves a pointer on another device is healthy, so the fault sits on the macOS 27 side.

Also check the basics before anything else:

1. Slide the switch on the bottom of the mouse off, wait ten seconds, and slide it on. The green strip under the switch should show.
2. Charge the mouse. Plug a Lightning cable into the port on the underside for about 15 minutes. Magic Mouse 2 draws power from the same port.
3. Restart your Mac with Apple menu > Restart.

How do I forget and re-pair the Magic Mouse?

Remove the mouse from Bluetooth, shut down the Mac fully, and pair it again. Users in the iBoysoft forum thread report this order working where a plain re-pair did not.

1. Open System Settings > Bluetooth.
2. Find your Magic Mouse in the device list.
3. Click the info (i) button next to it, then choose Forget This Device and confirm.
4. Turn the mouse off with the switch on the bottom.
5. Choose Apple menu > Shut Down. Do not pick Restart here. Wait 30 seconds.
6. Press the power button to start the Mac.
7. Turn the mouse on and wait for it to appear in System Settings > Bluetooth.
8. Click Connect next to the mouse.

The shutdown matters. A shutdown clears more Bluetooth state than a restart on many Macs, so the new pairing starts clean.

Does connecting the mouse with a cable help?

A wired connection forces the Mac to treat the mouse as a fresh USB device, which resets the pairing record.

1. Connect the Magic Mouse 2 to your Mac with a Lightning to USB-C or Lightning to USB-A cable, depending on your ports.
2. Leave it plugged in for one to two minutes with the mouse switch on.
3. Expect no pointer movement during this step. The Magic Mouse 2 does not track while plugged in, since the port sits on its underside.
4. Unplug the cable and turn the mouse off and on.
5. Test the pointer wirelessly.

If the pointer still does not move, go back to the forget and re-pair steps once, then continue below.

Is third-party mouse software the cause?

It is the most common conflict after a major macOS release. Utilities hooking into the mouse or trackpad often break until the developer ships an update for macOS 27.

Check for these and quit or remove them:

• Logitech Options+ or other vendor apps for non-Apple mice
• BetterTouchTool, USB Overdrive, SteerMouse, or Scroll Reverser
• Karabiner-Elements or similar input remappers
• Any non-Apple Bluetooth mouse paired to the same Mac

To see what loads at startup, open System Settings > General > Login Items & Extensions. Turn off anything related to mouse or input control, then restart.

Turn off or unpair any second Bluetooth mouse as well. Two pointing devices with different drivers sometimes compete for the same input channel, and the iBoysoft guide lists this as a step for a reason.

Install the latest version of each utility from its developer's site before you turn it back on. Check the release notes for macOS 27 support.

How do I reset the Bluetooth preferences on a Mac?

Delete the Bluetooth property list and restart. This clears every saved pairing record on the Mac, which removes any corrupted entry for the mouse.

This step unpairs all your Bluetooth devices, including keyboards, headphones, and trackpads. Have a wired keyboard or the built-in keyboard ready, and expect to pair each device again.

1. Open Terminal from Applications > Utilities, or press Command-Space and type "Terminal".
2. Run this command and enter your administrator password when asked:

sudo rm /Library/Preferences/com.apple.Bluetooth.plist

3. Restart the Mac.
4. Open System Settings > Bluetooth and pair the Magic Mouse again.
5. Re-pair your other Bluetooth devices.

If Terminal reports "No such file or directory", the file is already gone and this step does not apply to you. Move on to the next fix.

Does Safe Mode tell me anything useful?

Yes. Safe Mode loads a minimal set of drivers and blocks third-party startup items. If the mouse works there, a login item or extension is the culprit.

On a Mac with Apple silicon:

1. Shut down the Mac and wait for the screen to go dark.
2. Press and hold the power button until "Loading startup options" appears.
3. Select your startup disk.
4. Hold Shift and click Continue in Safe Mode.

On an Intel Mac, restart and hold Shift until the login window appears.

Pair the mouse and test the pointer. If it works in Safe Mode, restart normally and remove login items one at a time until the fault returns. The last item you removed or turned off is the one causing the conflict.

What if nothing works?

Test the mouse on another Mac. A mouse failing there too has a hardware or battery fault. Contact Apple Support or visit an Apple Store.

A mouse working on another computer but failing on your macOS 27 install points to an operating system bug. Take these steps:

1. Open System Settings > General > Software Update and install every available update. Apple ships fixes for early Golden Gate bugs in point releases.
2. Send a report through the Feedback Assistant app, including your Mac model and macOS build number from Apple menu > About This Mac.
3. Use a wired or Bluetooth trackpad, or a different USB mouse, while you wait for a patch.
4. Consider reverting to macOS 26 Tahoe from a Time Machine backup only if you rely on the mouse for work and no fix has arrived.

A downgrade erases data created after the backup date. Back up your current files to an external drive before you try it.

Quick checklist

• Mouse charged and switched off, then on
• Forgotten in System Settings > Bluetooth, then paired again after a full shutdown
• Wired connection for one to two minutes, then tested wirelessly
• Third-party mouse and input utilities quit, updated, or removed
• Second Bluetooth mouse unpaired
• Bluetooth property list deleted, then all devices paired again
• Safe Mode test completed
• Software Update checked for a Golden Gate point release

Start at the top and stop when the pointer moves. Most people reach a working mouse by the re-pair step or the third-party software check.