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Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

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MacBook Pro A1286 mouse becomes jumpy and slow

Hi,

My mouse becomes very jumpy after about 15 ~30 minutes. mouse moves slow also with usb mouse.

I've run hardware test and it gives a problem with battery. it's not original.

can this cause my problems?

With charger the i've got the same problem, but it seems a little less. also when charger is plugged in and the mouse is slow, and when touching with my other hand the metal chassis while moving the mouse with the other hand the mouse response normal.

Tested with differend HD and memory, but no avail.

Answered! View the answer I have this problem too

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Lets look a bit deeper into your batteries health. Download this gem of an app: CoconutBattery. Paste a snap of the the main window so we can see.

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disconneted the batterij but same problem. mainboard problem?

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Did you have a liquid spill or sit the system down on a wet surface?

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Take the bottom off. Test if the trackpad has improved. Check the battery for swelling. Remove the battery and test the trackpad. Replace the battery.

MacBook Pro 15" Unibody Early 2011 Battery Replacement

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did that allready. but it seems that somehow when put the notebook on its side the mouse works better.

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You took the battery completely out and the problem persists?

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Honestly this is just an educated guess, but the memory might be failing. Try removing 1 module (if you have 2, if not try to find a replacement to test with) boot and test, if the problem persists swap the module and boot again. Let us know if this works.

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did that allready

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arjan will be eternally grateful.
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