Why doesn't keyboard and trackpad work after battery replacement?

Why doesn't keyboard and trackpad work after battery replacement?

I replaced a dead battery on my MacBook Pro and now the keyboard and trackpad aren't working. The battery works fine, but the fans come on like gangbusters and won't go off. I can use a remote keyboard and plug in mouse but the fans blow and blow. I did my best to reconnect the track board ribbon but clearly something is amiss. Help!

Asked by: Guest | Views: 265

Total answers/comments: 3

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bert [Entry]

It sounds to me like something just isn't connected properly. IIRC there's a temp sensor integrated into the touchpad, and if it's disconnected the fans will run full blast. I'd probably just re-do the repair and reseat each connector really carefully, making sure the ribbons are straight and fully inserted, and that they aren't connected upside-down or damaged in any way. Let us know what you find. Good luck!

bert [Entry]

Have you tried reseting the PRAM/NVRAM or SMC?

bert [Entry]

I had the problem after replacing my battery that the touchpad would move the mouse pointer but it wouldn’t left or right click. I looked at the original battery pack and realized a thin metal covering that went over the touchpad was pulled off when i removed the battery. I pealed it off the original battery and put it back over the touchpad and reinstalled the new battery. It fixed the problem and everything is working well know.