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Level 1

6 points

Magic Mouse keeps disconnecting from bluetooth

My magic mouse (with all updates properly installed and with USB Overdrive properly uninstalled) has a problem connecting and disconnecting from the computer. When I use the mouse for a few minutes, it will all of a sudden be non-responsive, and within a couple of seconds the "Connection Lost" message appears on the screen. If I wait another minute, and click the mouse button a few times, the mouse will reconnect. This happens periodically as I am using the computer.

In the console logs, I get these messages:

10/31/09 6:06:20 PM kernel [0eb48f00][AppleMultitouchDevice::willTerminate] entered
10/31/09 6:06:20 PM kernel [0eb48f00][AppleMultitouchDevice::stop] entered
10/31/09 6:06:24 PM kernel [0ffa3600][BNBMouseDevice::init][30] init is complete
10/31/09 6:06:24 PM kernel [0ffa3600][BNBMouseDevice::handleStart][30] Done
10/31/09 6:06:24 PM kernel [08701100][AppleMultitouchHIDEventDriver::start] entered
10/31/09 6:06:24 PM kernel [09f11680][AppleMultitouchDevice::start] entered

The first message is when the mouse disconnects, and the rest are when it reconnects.

Does anyone have any suggestions?

Unibody MacBook Pro (CTO 2.8Ghz, 4GB RAM), Mac OS X (10.6.1)

Posted on Oct 31, 2009 3:14 PM

Best reply

arunakn

Level 1

4 points

Posted on Jul 24, 2017 9:38 AM

Try this. might help

From the OS X desktop, hold down the Shift+Option keys and then click on the Bluetooth menu item to reveal the hidden Debug menu
Select “Reset the Bluetooth module” from the Debug menu list

3. When finished resetting, reboot the Mac as usual and go through the process of connecting the Bluetooth device(s) to the Mac as you typically would, everything should now work fine. (If you have another set of keyboard and mouse reset all connected apple devices and restart.)

Hope this will help.

***Thanks to our friend Keir over at MacKungFu for discovering the debug menu item ***

ArunA

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241 replies

skaupert

Level 1

0 points

Nov 20, 2009 7:24 AM in response to Dana Spiegel

Same here. Magic Mouse disconnecting and reconnecting. Until now used Bluetooth Mighty Mouse without any issues at all.

However the problem seems exacerbated by turning on Bluetooth on my iPhone.

Again, that was not a problem with Mighty Mouse, but it seems to be throwing Magic Mouse for a loop. I consider this a bug. The protocol design of Bluetooth allows multiple devices to use it simultaneously, and I don't have any airport or microwave or cordless phone within 40ft. So the only other source of 2.4GHz noise is the macbook and the iphone.

In my book (no pun intended) that should not cause any problems. I expect to see a firmware update for the magic mouse in the near future.

katzha

Level 1

0 points

Nov 25, 2009 6:28 AM in response to skaupert

I have been having the same Magic Mouse disconnection problem on a 2009 Mac Pro. Bluetooth is turned off on my iPhone.

Nov 30, 2009 7:34 AM in response to katzha

I too have the same problem... One thing I noticed is that it always disconnects after login... After that, all is fine until i restart.

Bigade

Level 1

0 points

Nov 30, 2009 8:00 AM in response to Community User

I have had my Magic Mouse for about a month and have just worked out how I can make these occasional disconnections happen at will. At the edge of my desk there is a slightly raised lip. If I move the mouse backwards (or forwards) so that it taps against the lip then the mouse disconnects.

Of course I can also just hold the mouse up vertically and tap it down on the desk and get the same effect. Not much force is required.

That's not to say that's the only way to get a disconnect.

Anyone else get this?

Message was edited by: Bigade

Nov 30, 2009 8:58 AM in response to Bigade

Confirmed. Lifting the mouse and tapping it back down causes a disconnect.

TipsFan

Level 1

4 points

Nov 30, 2009 9:10 AM in response to Patrick Yan

Confirmed that holding MM vertical and tapping lightly on my mousepad forces a disconnect.

I also had started getting random disconnects/reconnects during normal use, but it has not happened since I swapped out the batteries for a fresh set...

katzha

Level 1

0 points

Nov 30, 2009 9:12 AM in response to TipsFan

I do not experience the tapping disconnection. Indeed, I have not been able to discern any pattern to the disconnections at all. I can usually reconnect, though, by holding the mouse close to the Mac (which is under my desk).

Bigade

Level 1

0 points

Nov 30, 2009 9:55 AM in response to katzha

That's interesting - so this looks like more than a single issue.

When I tap vertically the green LED goes off for just a second - I don't know if this is a symptom of the disconnection of if it implies power loss due to a poor connection exacerbated by the shock.

I'll see what Apple say when they open tomorrow.

Bigade

Level 1

0 points

Dec 1, 2009 7:23 AM in response to Bigade

Well Apple say to me that the tap-to-disconnect problem means they will replace the mouse. 'Will' is the significant word here as, I am told, they can't enter the magic mouse into their systems yet to order the replacement so I have to wait (or visit a service centre or genius bar).

Technology!

Dec 4, 2009 11:46 AM in response to Bigade

I see the same tapping behavior. Replacing the batteries with fresh ones made it happen less often, probably not because the batteries are more charged but because the metal contacts are cleaner.

katzha

Level 1

0 points

Dec 8, 2009 12:19 PM in response to Dana Spiegel

I have discovered that if I hold the aluminum side of the Magic Mouse against the bottom front grill of the Mac Pro and click, the bluetooth connection is restored. This is working pretty reliably. Unfortunately, I have to use this trick 5 or 6 times a day, so I am probably going to go back to the Mighty Mouse.

Bigade

Level 1

0 points

Dec 10, 2009 7:56 AM in response to katzha

Well I have received a replacement MM and, shock!, it behaves the same - tapping disconnects and I have also had occasional disconnects that are not down to tapping. So Apple are going to send me another replacement (this could be a long story). I tried a different make of battery, and even tried 'enhancing' the connection by reducing the play with small pieces of aluminium foil between the battery and mouse contacts. No significant change although the makeshift enhancement did seem to mean that a heavier tap was required - it's difficult to judge such things.

I otherwise like the MM very much and am resisting giving it up.

Dec 11, 2009 3:34 PM in response to Dana Spiegel

The tapping issue is real... I can duplicate it again and again. I suspect the battery terminal connectors are ever so slightly becoming disconnected from the battery causing a "hard boot", if you will, of the mouse.

I took a few pieces of paper and rolled them into a tube and wedged it between the batteries and covering casing.. This prevents the batteries from moving. This simple hack seems to have solved the issue... Mouse has been working flawlessly.

katzha

Level 1

0 points

Dec 11, 2009 4:16 PM in response to PhonicMonkey

This Magic Mouse works perfectly with my MacBook Pro and iMac; the problem for me occurs strictly with the Mac Pro under the desk at work. So for those of us with Mac Pro problems, I do not think tinkering with the mouse is going to help.

cpetzny

Level 1

0 points

Dec 22, 2009 4:41 PM in response to Dana Spiegel

Since reading this thread, I can confirm that picking the mouse up and setting it back down on the desk (as you sometimes do) will cause a disconnect. This is repeatable and will happen every time, even if done fairly gently.

I have a feeling it depends on the make of the batteries, since the ones that came with it originally never had this problem, but ever since I dropped in the rechargeables I am using now, every slight knock of the mouse causes a disconnect.

Going to try wedging something in there as previously suggested to see if that fixes the problem.

Cheers,
Chris.

Magic Mouse keeps disconnecting from bluetooth