Dana Spiegel

Q: 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

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Q: Magic Mouse keeps disconnecting from bluetooth

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  • by jesserolandallan,

    jesserolandallan jesserolandallan Jun 1, 2015 7:57 AM in response to Dana Spiegel
    Level 1 (0 points)
    Jun 1, 2015 7:57 AM in response to Dana Spiegel

    This may be a strange one but I actually grabbed a Q tip and cleaned the positive connecters. I noticed they where a tiny bit grimy. I could have been battery acid. I got alcohol and cleaned it all up. I did this after reseting my P RAM and deleting my bluetooth pref. All is well now : D

  • by Billish,

    Billish Billish Jun 27, 2015 3:41 PM in response to Dana Spiegel
    Level 1 (19 points)
    Mac OS X
    Jun 27, 2015 3:41 PM in response to Dana Spiegel

    All this discussion about the batteries or battery cover being loose or using different kinds of batteries that are slightly larger or smaller seems unlikely to be the issue, guys.  I mean, sure the PalmPre phone did a comically bad job at retaining batteries well enough to prevent power interruption, but APPLE?  Hmm...this would be a class-action lawsuit by now, wouldn't it?

     

    More likely, it's one of the issues described by the following two articles:

     

    http://ihealthgeek.com/2015/02/yosemite-10-10-2-wifi-and-bluetooth-finally-solve d-no-really/

     

    http://apple.stackexchange.com/questions/157357/yosemite-magic-mouse-and-a-bluet ooth-disconnection-party

     

     

    R,

    Bill

  • by netslacker2000,

    netslacker2000 netslacker2000 Aug 26, 2015 5:48 AM in response to Dana Spiegel
    Level 2 (267 points)
    Aug 26, 2015 5:48 AM in response to Dana Spiegel

    This thread talks about using a piece of paper or cardboard between the battery door and the batteries to prevent the disconnect from occurring however, I've found that there is a simpler, more permanent solution. I scratched the battery contacts and battery ends with a small file. Nothing major, just some little scratch marks to help with the electrical contacts. Voila! No more disconnects!

  • by bzf68t,

    bzf68t bzf68t Sep 4, 2015 9:53 AM in response to Dana Spiegel
    Level 1 (0 points)
    Sep 4, 2015 9:53 AM in response to Dana Spiegel

    ALL of the 'solutions' listed are work arounds and not solutions. Some work for a while giving false hope of reliability. For as much as APPLE charges for Macbook Pros and Magic Mouses, I EXPECT A LITTLE BETTER QUALITY AND RELIABILITY THEN WHAT THEY ARE GIVING! I even bought another mouse only to be disappointed on day one. Unless they address this issue with an engineering fix, I may go to Linux on my next CPU. I'm using the recommended lithium batteries and have tried different brands.



  • by Leedsc,

    Leedsc Leedsc Oct 2, 2015 9:09 AM in response to Dana Spiegel
    Level 1 (0 points)
    Oct 2, 2015 9:09 AM in response to Dana Spiegel

    Hi all, after reading this log, I decided it was a battery connection problem. I had some blank cards one might use to learn vocabulary (3 1/2 " x l 1/2 " ). I took out the batteries, placed the card across the center area, replaced the batteries and wrapped the remaining card around the top of the batteries.  Then I  replaced the cover.  Voilá  NO DISCONNECTS. 

  • by bzf68t,

    bzf68t bzf68t Oct 2, 2015 11:51 AM in response to Leedsc
    Level 1 (0 points)
    Oct 2, 2015 11:51 AM in response to Leedsc

    I've tried a new mouse, the recommended bateries and it all failed. I added a usb bluetooth adaptor and it hasn't dropped in 3 weeks.

    It seems Apple is using substandard internal bluetooth components.

  • by Falux,

    Falux Falux Oct 8, 2015 2:28 PM in response to bzf68t
    Level 1 (4 points)
    Oct 8, 2015 2:28 PM in response to bzf68t

    What did not work for me were the bluetooth/airdrop approach, rebooting, cleaning contacts, changing batteries, deleting bluetooth from Networks.


    What seems to have done the trick was to fold a post-it and stick it between batteries and the cover (so the batteries can't move).

     

    It's worth a try if you're desperate.

  • by bzf68t,

    bzf68t bzf68t Oct 8, 2015 3:22 PM in response to Falux
    Level 1 (0 points)
    Oct 8, 2015 3:22 PM in response to Falux

    I Ended up buying an external usb bluetooth adaptor and it has not dropped in 3 weeks. Weak internal bluetooth, Chinese no doubt.

  • by mayoal,

    mayoal mayoal Oct 20, 2015 11:49 AM in response to Dana Spiegel
    Level 1 (0 points)
    Oct 20, 2015 11:49 AM in response to Dana Spiegel

    To all of you with your Magic Mouse magically disconnecting here's my solution (so far I "fixed" two MM).

     

    the issue as some of you posted is the batteries loosing contact at some point on the Positive side of them, my two MM have a flimsy Positive contact and if I push them with a pen or something they will move from the bottom, not sure if this is by design or flaw, so when I move the MM to another place of my desk it disconnects from my MBP when it "hits" the desk.

     

    So I taped four or five layers of scotch tape to the bottom of the batteries compartment on the Positive side for both of the batteries from side to side not affecting the Negative side. This will prevent the batteries from bouncing to the bottom of the mouse's battery compartment, I know this is upside down when I use the mouse but it keeps the batteries from moving and losing contact with the mouse.

     

    If you notice it works better after doing the above recommendation but at some point it disconnects when hitting the  you can do some layering of scotch tape on the inside of the battery lid, don't do it too tick or it will bend the aluminum lid. Be careful of not affecting the Laser.

     

    Hope this makes sense and work for you too.

  • by Flystone007,

    Flystone007 Flystone007 Oct 26, 2015 9:37 AM in response to Dana Spiegel
    Level 1 (0 points)
    Oct 26, 2015 9:37 AM in response to Dana Spiegel

    EUREKA!!

    THANKS TO ALL OF YOU & THIS AMAZING INTERNET THING!

    -

    I have been having the Apple Magic Mouse disconnecting from Bluetooth issue for months & months!

    At one point I even got so frustrated that I "semi-involuntarily" tested the bounce recovery factor of it's manufacturing by propelling the mouse across the room into the opposite wall.

    At the time I hoped it would explode into a thousand pieces and disappear like smoke in the wind. To my surprise I discovered that these little devices are seriously tough.

    It not only didn't break but it still turned back on afterwards...still use it too. (Could've also been that it was a whimpy throw. hahaha!)

     

    Anyway my point is that I did another search for how to solve this disconnection issue and came across post below by smgs18:

    ____________________________________

     

      

      

    I've had the same problem for a while now but I seem to have fixed it.

     

    • Use a cotton bud and spray a small amount of WD-40 on one end
    • Carefully clean all four contact points within the mouse (i.e. where the batteries connect to at each end)
    • Use good quality batteries

     

    Haven't had a problem since!

    ____________________________________

     

    SO With this new logical insight I performed the recommended procedure described by "smgs18" but changed the tool & cleaner below to fix my Apple Magic Mouse from disconnecting from Bluetooth.

    (*sidenote: who'd of thought it was a battery connection issue...duh! hahaha!)

     

    • Use a Q-Tip, light soaked in rubbing alcohol.
    • Clean all four battery contact points within the mouse (i.e. where the batteries connect to at each end)
    • NOTE: Better to use rubbing alcohol because WD-40 is a loosening lubricant and leaves an oily "slippery" film.

     

    As a collective community we're all saving each other continued aggravation and $ Money ...and I didn't have to buy a new mouse!

    Thanks again to all who posted!

  • by willdrotar,

    willdrotar willdrotar Dec 30, 2015 7:04 PM in response to bzf68t
    Level 1 (0 points)
    Dec 30, 2015 7:04 PM in response to bzf68t

    Normally I have a bit of patience for these things but this is an $80 mouse....

  • by Dylanophile,

    Dylanophile Dylanophile Dec 31, 2015 8:30 AM in response to willdrotar
    Level 1 (0 points)
    Dec 31, 2015 8:30 AM in response to willdrotar

    Great fun this, isn't it !ll, I junked both my Magic Mice (Yes, Apple sent me one for free after all my complaints !) and got a different brand (sssh… Microsoft) wireless mouse which never fails. Unfortunately it uses one of my precious USB sockets. So the other day I brought out a Magic mouse for yet another try. I had previously put expensive Duracell Ultra Power batteries in there which were still like new but never worked, so I extracted them and put in some standard Duracells. BINGO ! It works again, no sign of dropping out ever since.

     

    I actually still had some more totally new Duracell Ultras which I put in next as an experiment and… NOTHING-dead as a dead MM…So again…. Replaced with standard Duracells and it works again perfectly. No hint of a disconnect over past few weeks.

     

    IT'S THE BATTERIES. Not even the make-just the way they happen to be constructed and sit in the space. These Duracells look identical to the naked eye but clearly there are some subtle differences in the way the different type sits in the compartment.

     

    My feeling is, if the batteries don't work, or drop out a lot, just try some different ones. I cannot be fiddling about with cleaning contact points and such like. Worst case scenario-If I don't have any batteries in that do work, I'll use the Microsoft Mouse instead.

  • by kdk-kris,

    kdk-kris kdk-kris Jan 4, 2016 3:14 AM in response to Dylanophile
    Level 1 (0 points)
    Jan 4, 2016 3:14 AM in response to Dylanophile

    I just find out, some AA batteries are a bit shorter than others, after I changed to bigger ones my mouse its OK. Hope it helps.

    All rechargeable batteries are bigger than standard ones.

    I think that battery compartment is designed to work with big, solid batteries.

  • by jfeder,

    jfeder jfeder Jan 19, 2016 7:29 AM in response to bzf68t
    Level 1 (0 points)
    Jan 19, 2016 7:29 AM in response to bzf68t

    Apple fixed nothing in 5 years.

    I bought my first MM with my first iMac in December 2009.  I used the foil fix, and it mostly worked, but not completely.  I bought my latest iMac December 2014 and ordered a brand new MM, assuming that a new one would work better.  EXACTLY THE SAME PROBLEM.

    I just now tried the reset Prams and cleaning the contacts perfectly.  The problem remains exactly the same, a slight jar and it loses connection.

    In 5 years they did NOTHING about the problem.  Thanks Apple.

    -------------------------------------------------------------------------------- -----

    I just tried the paper around the battery fix and NOT the contact-foil fix.  It is much less sensitive to mechanical shock, but when it did disconnect from a greater shock, it did not come back into operation until I dropped it and squeezed the battery cover. Obviously in my case it is a mechanical issue.  This seems to be a useable fix for me.

  • by BobHarris,

    BobHarris BobHarris Jan 19, 2016 8:28 AM in response to jfeder
    Level 6 (19,457 points)
    Mac OS X
    Jan 19, 2016 8:28 AM in response to jfeder

    Perhaps it is the battery length that is the issue.  Are you using Alkaline or Rechargeable batteries?

    https://forums.whirlpool.net.au/archive/1702565

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