keyboard and trackpad is not working, MacBook won't start
Macbook Air 13" a1466
the trackpad and the keyboard of a friends macbook air isn't working anymore. her machine just went black and nothing worked anymore, not even the power button.
when i disconnect all the connections from the keyboard, trackpad and battery the macbook starts when i attach the power supply to it.
now my question: are they any parts beside the keyboard and the trackpad that could cause this problem? there do i start to replace stuff? any ideas?
thanks for your help!
sure, sorry for that one.
the Part Number is MD760D/A.
Ok, here we go again. So i replaced the keyboard and both, trackpad and keyboard was working again so i put the battery back in and tryed to start the computer but nothing happend. So i tryed again to start the computer without the battery connected but it wont start. So i disconnected the trackpad/keyboard cable again and plugged the meg safe back in. The computer starts. I shut it down again, connected the trackpad/keyboard cable again but doesn't connectet the battery. The macbook air startet and it was possible to use both without any problems but when i connect the battery again it won't start, even with the battery disconnected again it wont start, i have to remove the trackpad and keyboard cable again to get the maschine starting.
So i tryed the smc reset while the keyboard and the trackpad was working, but nothing changed.
Any ideas what could cause this problem? Is it possible that the trackpad is causing these problems? Or the battery? I really could use some advice here.
Thank you guys!
no idea? anybody? thanks again for your help. i will try to get a new trackpad and will see how it works.