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원문 게시자: raging_zef ,

제목:

Can't diagnose erratic trackpad behavior

본문:

Some time ago this computer started exhibiting erratic behavior related to the cursor/trackpad: unresponsive to inputs; cursor jumping around on screen; phantom clicks.

My wife took it the Apple store and they claimed to be unable to identify any fault. (Amazing.)

The first thing I did was a full wipe and OS install. That didn’t change anything.

Then I did some experimenting and found that the problem would only kick in once the battery had reached around 35% charge. I took this to mean that it was a swelling issue (a commonly reported cause) and a new battery would fix the problem. So before buying one, I swapped in a compatible battery from another MBA and, though things worked fine at first, eventually the problem returned.

I’m now at a bit of a loss. I could buy a replacement trackpad, but who knows if that would work. Also, why would things be fine even with the old battery at a low charge, but not at a higher one and not with a separate battery altogether (that donor MBA, by the way, was always functioning fine)?

기기:

MacBook Air 13" Mid 2012

현황:

open