Problematic/Erratic Trackpad

我的问题

A user at the company was complaining that her trackpad would constantly think she was clicking and holding to drag things, even when she wasn't. I tested it and confirmed this was, indeed, an issue.

我的修理方法

After first looking around at potential software fixes (firmware updates and the like), I proceeded to open it up. No signs of water damage, no battery swelling from overcharging, no noticeable debris. I took the trackpad out and stuck it in another MacBook Air; same problem. Ordered a replacement part, installed it and all is good to go. Still no idea what crapped out on the trackpad in the first place.

我的建议

Be prepared for options. There are a bunch of things that could impact trackpad usability, but not all of them require a replacement part.