Chosen Solution
I replaced the keyboard and now every key works except the power button. I can turn on the Mac only by unplugging the battery connector and then plugging in the magsafe. SMC doesn’t work as well. I also tried all the key combinations in order to get it started but nothing works.
Hello! Carefully examine the logic board to ensure that you have properly connected all the cables.
What happens when you use the power pads?
