Bricked MacBook Air 11 2014 (magsafe light on, will not power on)
Hi all—this might be a hopeless case, but I wanted to see if anyone on here had ideas: I’ve been gifted a dead MacBook Air 11” (2014), which apparently shutdown in the middle of being used some months ago. When I connect the magsafe cord, the light goes green, then orange, as normal. But there’s no reaction from pressing the power button—no display, no chime, no fan.
So far I’ve tried:
- Leaving it plugged in overnight to ensure a full charge on the battery
- Pressing shift+Ctl+Option+power and holding for ten seconds
- Unplugging the battery from the logic board and connecting the power cord
- Unplugging the battery and pressing and holding the power button for ten seconds
- Unplugging the battery and power cord and leaving both unplugged for about 30 min
The only reaction I’ve been able to get is that after pressing and holding shift+ctl+option+power, the magsafe light turns from orange to green for a couple of seconds, then back to orange. Also at some point during the process, the magsafe light pattern changed slightly—now when I plug it in it stays off for a moment, then shows orange, then green, then orange.
Any ideas on what’s broken? Anything I should try (short of replacing the logic board)?
UPDATE: I was able to get the fan to turn on for a bit and the chime. Specifically: I connected the battery and disconnected the power adaptor. Then I disconnected the keyboard and keyboard backlight and shorted the power pads with a screwdriver several times, holding the contact for about 3 seconds each time, but got no reaction. Then I plugged in the power adaptor and fan started! And I got the chime after a few seconds! But the display did not light up and I didn’t have the keyboard connected so I couldn’t do anything. So I tried connecting an external USB keyboard (this was probably a bad idea) and the fan died immediately afterward.
Unfortunately, I have not been able to replicate this—so possibly I did something else while working on it that turned the fan on and didn’t realize it.
Sounds like you may have some damaged compoents on teh logic board. Did you check for corrosion? Has this MacBook ever had any liquid damage?
Tim さんによる