Original post by: remacberlin

Text:

If you can start the computer by shortening the PWRBTN on the logicboard i guess that something has fried your topcase. Try to get another one. Sometimes the USB contoller underneath the trackpad fails, but that wouldn't affect the power button. Carefully check the flatband cabel that connects to the board. From the distance i suspect that to be the culprit.

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open