I have the strangest problem with an a1181 MacBook, the Mac boots with a working backlight for about 2 seconds, then the backlight goes off.
I thought this could be the screen inverter or inverter cable, however after testing with known good parts the problem persists. I’m not sure but to me it seems maybe the MacBook thinks the lid is always closed even when it’s open?
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Edit, I found something else weird, the Mac boots perfect with a working backlight if the top case isn’t screwed in. I tried a different top case thinking if that was the problem, but it’s definitely not. Maybe it’s a sensor somewhere?
I have the strangest problem with an a1181 MacBook, the Mac boots with a working backlight for about 2 seconds, then the backlight goes off.
I thought this could be the screen inverter or inverter cable, however after testing with known good parts the problem persists. I’m not sure but to me it seems maybe the MacBook thinks the lid is always closed even when it’s open?