MacBook Air 2015 Trackpad Jumpy

MultiFinder17

macrumors 68020
Original poster
Jan 8, 2008
2,141
868
Tampa, Florida
I've been having an odd issue with my Air lately. Out of the blue, the trackpad has become incredibly jumpy. It stops and starts, does not pick up all the fingers all the time, and occasionally jumps around and taps when it's not being touched. I have tried rebooting, a PRAM reset, and an SMC reset, and it is not becoming any better. Rebooting the machine into the recovery partition and Windows reveals the same issue. The keyboard works perfectly fine. Has anyone experienced this before, and what's might you have done to fix it? Many thanks :)
[doublepost=1498876574][/doublepost]Update: The trackpad seems to be completely and utterly unresponsive now. Also, it works perfectly with an external mouse.
 
Last edited:

kohlson

macrumors 68020
Apr 23, 2010
2,267
663
Could it be that a bluetooth mouse nearby is overriding your trackpad? This has happened to me: Magic Mouse in nearby backpack got switched on by accident.
 

Sedulous

macrumors 68020
Dec 10, 2002
2,417
1,712
If you boot to EFI (hold option key before chime at boot), does everything work?
 

Sedulous

macrumors 68020
Dec 10, 2002
2,417
1,712
Clicking trackpad is ok? I ask because battery swelling might push against trackpad. The keyboard also runs through the trackpad.
 
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MultiFinder17

macrumors 68020
Original poster
Jan 8, 2008
2,141
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Tampa, Florida
Clicking trackpad is ok? I ask because battery swelling might push against trackpad. The keyboard also runs through the trackpad.
Nope, clicking is just as hit or miss as regular tracking. The keyboard works perfectly fine and reliably. The trackpad has spent the last day now toggling between being dead and acting like someone is flailing wildly on it.
 

DeltaMac

macrumors G4
Jul 30, 2003
10,126
2,638
Delaware
Sounds like typical "response" when the battery is swelling.
Might be easily visible when you remove the bottom cover --- or take to a "genius" for a quick check.
 

DeltaMac

macrumors G4
Jul 30, 2003
10,126
2,638
Delaware
It's a hardware issue, and you say you have tested with other software, so reinstalling macOS shouldn't make any difference.
If it is not the battery swelling against the underneath side of the trackpad, then it's simply the trackpad failing.
Take to a "genius" for an evaluation. If you are in warranty/AppleCare (?), then the fix should be easy, assuming there's no evidence of accidental damage, such as from a drop, or a liquid spill. Again, the "genius" should sort that out.
 

MultiFinder17

macrumors 68020
Original poster
Jan 8, 2008
2,141
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Tampa, Florida
Yeah, that's what I've been thinking. I have an appointment at the local Apple Store on Tuesday; I'll fill you all on with what they have to say.
 

MultiFinder17

macrumors 68020
Original poster
Jan 8, 2008
2,141
868
Tampa, Florida
So, bit of a late reply, but the Genius at the store was stumped. The machine passed all diagnostics, and he had no idea. I took it home, and it sat in my closet for the last two months. I was browsing eBay, and decided to look for trackpads for it. I came across a replacement trackpad for $25, and figured that I'd give it a go. It just arrived today and, ten minutes later, the MacBook Air is working perfectly fine. I guess it was just a bum trackpad.
 
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Rocko99991

macrumors 6502a
Jul 25, 2017
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So, bit of a late reply, but the Genius at the store was stumped. The machine passed all diagnostics, and he had no idea. I took it home, and it sat in my closet for the last two months. I was browsing eBay, and decided to look for trackpads for it. I came across a replacement trackpad for $25, and figured that I'd give it a go. It just arrived today and, ten minutes later, the MacBook Air is working perfectly fine. I guess it was just a bum trackpad.
Nice@ Was is hard to replace?
 
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