Magic Mouse: Lost Connection - These Tips Will Help You ...

Solve connection problems with the Magic Mouse

I am really a fan of the Magic Mouse and have still been using the first model for ages, as I've only bought MacBook Pros for the past few years and you don't get a mouse delivered with it. The Magic Mouse has been my loyal companion for over 10 years when I work at home.

I like the flat shape and above all the possibility of not only being able to scroll up and down on the touch-sensitive surface, but also to scroll left and right or to make the zoom and pinch gestures. This is something that no other mouse offers.

The good old Magic Mouse has been through a lot for me, but is still my favorite mouse (Photos: Sir Apfelot).
The good old Magic Mouse has been through a lot for me, but is still my favorite mouse (Photos: Sir Apfelot).

Standard protocol: check everything and restart

Before properly starting troubleshooting, make sure you've tried the obvious:

  • Switch the mouse off and on
  • Turn Bluetooth off and on
  • Turn your Mac off and on
  • Replace the batteries in the mouse

Most mistakes can still be made get rid of the world by restarting.

Lost connection - when the mouse no longer wants to ...

The batteries in the Magic Mouse 1 typically last several weeks, but even so, it sometimes surprises me with a 'Lost Connection' message - not infrequently when I've only been using the batteries for a few days.

The Magic Mouse 2 - with built-in battery and Lightning charging port - can also drive the user crazy with this message, because sometimes the status of the Apple mouse switches back and forth between "connected" and "connection lost" several times within a minute.

A recurring loss of connection in the Magic Mouse 1 indicates wobbly batteries.
A recurring loss of connection in the Magic Mouse 1 indicates wobbly batteries.

Known battery problem of the Magic Mouse 1

Solution 1: sheet of paper

The problem with the unexpected disconnections can be related to the design of the first Magic Mouse model. Mac users have been reporting this problem in forums for years. The reason for this is that the batteries are a bit "loose" in the battery compartment of the mouse.

Depending on how you move the mouse, the power supply can be interrupted for a short time, which the mouse acknowledges with “lost connection”, and then reconnects immediately.

The solution is free and simple: you switch off the mouse, open the battery cover on the underside and place a sheet of paper on the batteries to cover the batteries. Then you close the lid and see if it helps. The purpose of the paper is to push the batteries more firmly into the holder to prevent wobbling that can interrupt the power supply.

A piece of paper can be used to increase the pressure on the batteries.
A piece of paper can be used to increase the pressure on the batteries.

Solution 2: Small cuboids made of aluminum foil

Another reason for the interruption of the power supply could be the springs that press against the negative pole of the batteries in the mouse. If the springs are worn out here, it can also happen that slight movements of the mouse are enough to break the contact with the batteries.

Here you can help yourself with small aluminum plates that you clamp between the battery and the spring. Please make sure that the aluminum blocks do not touch each other.

If the springs stop compressing the batteries properly, the batteries will lose connection. Small plates made of aluminum foil help here.
If the springs stop compressing the batteries properly, the batteries will lose connection. Small plates made of aluminum foil help here.

Solution 3: Disable gesture controls

Even if it doesn't seem to have anything to do with the Bluetooth connection at first glance, it helped my reader Peter to deactivate the gesture control of the mouse. This goes off macOS is coming via this way:

  1. control Panel
  2. Mouse
  3. More gestures → disable everything here

Solution 4: Order Magic Mouse 3

It may sound like a sales ploy, but the perpetual disconnections didn't stop me permanently even with the above tricks. It wasn't until I retired the mouse and ordered the current Magic Mouse 3 that the connection stopped happening - and that has been the case for 2 years now. The Magic Mouse has a built-in battery and is charged via a Lightning connector.

If you also want peace and quiet, here are the links to the Apple Magic Mouse 3 on Amazon:

Fix blueooth problems

Problems with the Bluetooth connection can also cause the Magic Mouse or Magic Trackpad to disconnect. As with all computers, switching it off and on sometimes helps. You can do this via System Preferences> Bluetooth or via the Bluetooth icon in the menu bar on the Mac.

For severe cases, I have an article about 5+ ways to fix bluetooth connection problems.

Every now and then I also read that badly shielded USB-3 cables can cause problems with wireless mice and keyboards. The Magic Mouse 1 and 2 are no exception, because they also work via Bluetooth wireless protocol.

In between, a few reading recommendations:

The Preferences folder contains plist files that belong to the various input devices. If you delete these, it often solves strange quirks of the Magic Mouse or the Magic Trackpad.
The Preferences folder contains plist files that belong to the various input devices. If you delete these, it often solves strange quirks of the Magic Mouse or the Magic Trackpad.

Delete plist files

In case you are still unsuccessful in troubleshooting, there is one more thing you can do and that is deleting the .plist files, which are responsible for mouse or trackpad. You go to the Finder Click on the “Go” menu and then hold down the ALT key (also called option). Now the entry "Library" has appeared in the menu, which you call up.

In the Library folder, open the "Preferences" folder and look for the following files, which you should drag to the desktop so that you can put them back in case of doubt:

  • - Magic Trackpad
  • - Magic Mouse
  • - wired USB mouse
  • - Magic Trackpad
  • - Magic Trackpad

If these files have been removed from the Preferences folder, restart the Mac. When you restart, these files are recreated and any file problems are resolved.

If any tips helped you with troubleshooting, I would appreciate your comment.

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26 thoughts on “Magic Mouse: Lost connection – these tips will help you…”

  1. Jochen Strauss

    Thank you very much for the tips, none of which helped me, but got me on the right track. Two Apple Magic mice kept getting disconnected on their computers. Click a little on the mouse - and the connection has been re-established. Already tried to fix the batteries with paper, put away the USB cable, deleted the driver, doubled the negative pole with aluminum foil - all without success. Because of the tip with the aluminum foil, I finally took a critical look at the batteries upside down. The nipple on the positive pole (the small bump) was too flat and too wide to make permanent contact. Now there is a small washer between the mouse contacts and the positive terminals of the batteries - and all problems are eliminated!

    1. That's right, the positive pole is the problem. If you look at the two plus contacts in the mouse, one of the two contacts is usually a little further in/back. Opening the mouse and bending the contact forward again doesn't help, it moves backwards again after a few battery changes. On the other hand, you also need a lot of tact when opening the mouse and even more when putting it back together.
      The simplest solution, with a little skill, is to insert aluminum foil into the contact opening of the positive pole.

      1. Jen Kleinholz

        Thanks for the tip. I found a practical solution for myself: I got a Magic Mouse 2 with a built-in battery. Since then, no more disconnections. 😂

  2. Hello Jens, Happy New Year!
    I might have another tip, I deleted the gesture settings on the Magic Mouse, since then everything has run much smoother, no hook or connection lost and then reconnected to the monitor, I hope it goes on like this, not one this year Disturbance !
    With kind regards,


    1. Hi Peter! Thanks, Happy New Year to you too! And of course thanks for the tip. I'll include it in the post right now. 😊

  3. Hi Jens,
    Thanks for the answer, the same moment the mouse lost the connection, the keyboard was also no longer connected to me, I could imagine that everyone feels the same way, maybe it could help to deal with it one day!
    Have a nice evening!

    1. Hi Peter! At some point I bought the Magic Mouse with a built-in battery. Since then I haven't had any connection problems. But the connection of the keyboard had not failed at that time.

  4. Hello Jens, I also had connection problems with the Magic Mouse 2 and the Magic Keyboard 2, i.e. with the built-in battery. I wiped the hard drive and reinstalled Catalina, the problems are over for now. I no longer have the Time Machine hard drive on the Mac, I still have to figure out how to get the data onto the Mac. Another tip I read somewhere, please use branded batteries for the mouse, they are more accurate than the cheap batteries, the batteries for the keyboard and trackpad are fixed by the screw connection and that is missing with the mouse.
    With kind regards,


    1. Hi Peter! Apparently there can be 1000 reasons why the connection breaks down. 😊 But I'm sure we'll all have them together here in the post and in the comments soon. Thanks for your hints!

  5. Hi Jens,
    I haven't had any Bluetooth crashes since yesterday morning at 9:00 a.m. I switched the Mac to Lan and now it works again, Time Machine is available again, I still had an external 500GB hard drive that was new and packed. All programs are available again and so is the data. In the last 20 hours I got everything back the way it used to be, I'm not a Mac or even a PC freak, but you can only get results by trying. Thanks for your help, Apple's support page only gives general advice, but nothing specific. My FritzBox is now
    5 meters away from the Mac. Maybe another tip!
    Greetings Peter

    1. Hi Peter! Thank you for your hint. Of course, it could also be that the Fritz! Box is interfering with the BT on the Mac. But unfortunately I don't know enough about it technically. VG, Jens

  6. Thanks Jochen Strauss for the tip about the washers. I found two serrated lock washers 3,2 with an outside diameter of about 6mm. Since (1 week) I haven't had a single failure. Before that, the mouse sometimes lost the connection after 30 seconds.

    PS: Thanks also to Sir Apfelot for this great platform!

  7. Hi Jens,
    got an email from AVM, the recommendation is not to use the 2,4 GHZ, as there can be overlaps and Bluetooth crashes.
    I hope it helps some who have a Fritz! Box.


  8. Hi Jens,
    Since I got the message from AVM and no longer use the 2,4 GHZ channel with the WLAN, I no longer have any Bluetooth crashes. I had the last termination on 17.01.2023/XNUMX/XNUMX. Would be a tip for everyone who works with Magic Mouse and Trackpad.

    1. Yes, I mentioned that somewhere in the blog, but unfortunately many smart home devices still only work on 2,4 GHz. You have to see if you can do without the frequency. The "penetration" of walls with 5,8 GHz is probably not as good as with 2,4 GHz. But it's definitely worth a test to see if it solves the Bluetooth problem.

  9. Hi all,
    I'm just despairing. My iMac 14,7 does not recognize a Bluetooth keyboard, my Magic Mouse was still active until the day before yesterday, is no longer recognized, no chance to connect it, trackpad is recognized and connected, but cannot be renamed. The computer has been reset several times, all other devices (iPhone and iPad) currently have no Bluetooth connection. My old 2009 iMac allows all connections, is now also reset, all bluetooth disconnected, but my iMac doesn't recognize any devices other than the trackpad, let alone pairing. Can someone help me? Thanks

    1. Hello Boris! That sounds strange. So by reset do you mean you completely reinstalled it? If not, you can try creating a new user and connecting the keyboard under it. Maybe it's something in the user account that's causing the problem?

  10. Hi Jens,
    I have now played on my FritzBox 7590 update from MVM, since then I have no more Bluetooth failures! Maybe it was the software of the FritzBox?

    1. Hi Peter! Of course it can be. I still have the "old" 7590, but it's a far cry from anything Bluetooth does. That's why I probably don't notice a difference. Best regards, Jens

  11. Hi all,
    I simply threw out everything that came with Apple's iMac with Bluetooth. After I said goodbye to the new mouse and keyboard, I bought a cheap mouse and keyboard (€21,45 in total) and now everything works Since January it's been working as it should. When my iMac goes away, I will go back to Microsoft. So it shouldn't be charging a lot of money for everything, no reasonable support to help you, my son bought a new Dell PC,
    Everything works in terms of speed, the iMac is a sleeping pill compared to the Dell.

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