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MBP problems with trackpad while charging

Hey guys,


So this is my problem. My 4 month old Macbook Pro 13", early 2011 has problems with its trackpad everytime i'm charging it. So whenever the charger is connected to my macbook, the trackpad doesn't do what it's supposed to do, it's really slow and clicks on things i didn't chose. When I#m disconnecting my charger, everything just works just fine. Is there anyone having the same problem? i really don't know what to do, i have to study with it everyday for my graduation. this is why i can't send it to apple to have it fixed there. any solutions?
thanks a lot
friddi

MacBook Pro, Mac OS X (10.7.2), early 2011

Posted on Apr 13, 2012 1:36 PM

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Posted on Aug 6, 2012 2:37 AM

It might not be the super-best solution, but I noticed that when I rest the palm of my hand (the one I use to operate the trackpad) on the side of the trackpad. Don't know the science of it, but it must balance out the electricity somehow 🙂

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May 10, 2015 11:06 AM in response to fabinh

That palm trick solved the problem for me too, so weird. In my case, I did not have the trackpad problem with the original charger, but that charger died and the new one immediately created the problem with the trackpad when the macbook air is plugged in. I also thought that using the grounded plug might solve the problem, but it did not for me. Maybe because I'm using it in a country with 220v current.


By the way, the palm trick works with either hand. So you can rest your left hand on the computer to the side of the trackpad and use the trackpad with your right hand.

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Aug 8, 2015 4:37 AM in response to saulhs

saulhs wrote:


By the way, the palm trick works with either hand. So you can rest your left hand on the computer to the side of the trackpad and use the trackpad with your right hand.


For me, also works good with one hand if and only if, I rest that hand in the computer while I use the trackpad at same time. I know I know it's uncomfortable 😠

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Jan 11, 2016 2:44 PM in response to Friddi

This might not be a solution so much as it is more information. My wife has a MacBook Air 13" (Mid-2012) that had been having glitchy trackpad and keyboard issues. I opened up the bottom and removed the battery to find that the cable between the main board and the trackpad had been worn against the frame that holds the batteries. This was probably shorting the cable as the computer heated up from use and pressed against the it. I ended up cleaning it with a little bit of alcohol and placing a tiny bit of electrical tape over the worn joint to see if that would help isolate the cable from the battery frame. So far so good. It seems to have fixed it.


What does this have to do with your problem? The battery array might be interfering with that cable in your Air as well. Or at least they might not be isolated adequately enough from each other. Get the right tools to open the case and take a look for yourself. It's very easy with the right screwdrivers, just make sure to keep track of your screws.

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Sep 27, 2016 3:42 AM in response to Friddi

I had this problem too. I had my MacBook Pro serviced at an Apple store (for other reasons) but it did not they did not know know the answer to the trackpad/charger problem. I tried a different charger and the trackpad worked fine so am going to buy a new charger.

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Nov 4, 2016 9:26 AM in response to Friddi

I have a really old MacBook (13-inch, Mid 2010). It works perfectly fine; a little slow at times but I even have Sierra on it! I noticed when I plug charger in the trackpad plays up. I did buy the charger from eBay but it said it was genuine (my genuine one broke few years ago and a second one off eBay did so this is my third) but charges fine. I'm wondering if it isn't genuine because it said it was and I paid about £30 for it and has the serial number on it etc. Tried cleaning around trackpad and I don't understand that pressing your hand on it to make it work. No point taking it to Apple because their service is rubbish and the one for me is too far to go and it's an old Mac so doubt they could do anything, plus it would cost a ridiculous amount.

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Nov 24, 2016 4:50 PM in response to fabinh

I know it has been a lot of time since this post... maybe you have already the solution or even, you dont have the same mac today... i had the same problem 3 days ago and i observed after testing that it has nothing to do with the cable or computer... as you said 4 years ago it has something to do with electricity principles. It seems that some electrical outlets dont have a proper "grounding" and it affects in some way the functioning of the MBP or MB trackpad or mouse. Just test your computer with several outlets... and you´ll figure the issue. ¿The Solution? Find a new home 😉 or a new electrical outlet... or find an electrician to do what they do.

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Dec 17, 2016 10:30 AM in response to fabinh

I got the same problem in Macbook Air when I changed my charger. But it is surprising holding the laptop in palm and using track pad works for me too. Strange but it works. thanks for sharing. I think the track pad is not working due to some static discharge issues, so when we hold in our hands I guess our body conducts the static charges due to which the track pad works well. Maybe the Original Apple laptop charger is designed not to send these charges to its laptop whereas the replacement charger is not designed to do the same.

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MBP problems with trackpad while charging

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