Flashing question mark; after reboot no keyboard and trackpad
After waking my Mabook Pro up from Sleep mode, it showed a flashing question mark on the startup screen and didn't boot.
I forced a shutdown by pushing the power button and rebooted the computer. Now the machine started up again but the internal keyboard and trackpad stopped working. An external keyboard and mouse still work. Even after several reboots, the internal keyboard and trackpad never worked.
When logged in, in 90% of the cases the bluetooth symbol is crossed out and says "Not available". In about 10% of the cases the bluetooth works like normal though.
There was no water damage or impact, which could have caused this issue. The battery has been replaced ~5 months ago, within these 5 months I have never experienced problems.
Edit:
I took out the logic board, the rear looks fine besides some dust (photos attached). There is no corrosion damage. Also unplugged and plugged the trackpad cable both from the logic board and the trackpad. After putting everything back together the problem still persists, so unfortunately not just a lose connection.
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댓글 3개
Did you replace with after market battery or OEM battery? Did you try verbose mode and check the error?
Truth Seeker 의
It was replaced by an Apple vendor. If I open the case, the battery at least visually looks completely new without signs of swelling or similar.
Verbose mode didn't do much, because the computer starts up well with external keyboard and mouse. The flashing question mark only appeared once before all the problems with the keyboard and mouse started but never since.
If I start up in single user mode, the internal keyboard is still not working.
Gerd 의
These machines are only model without issue apple made so far. There are a few but minor and I will take the battery as original battery since you mentioned it is from apple vendor. I doubt the SMC_LID sensor may have issue if it doesnt wake but now the KB and TP do not work mean you need to check inside the machine.
Truth Seeker 의