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A customer has given me a MacBook Air that will not turn on at all. I don’t mean it won’t boot, it wont power on. The only sign of life I can get is the fan. It turns on for a split second and turns off again. It will do this in an endless loop:
She claims that she was updating to macOS Mojave from MacOS Lion when it died. The charger she gave me is off brand and I have a feeling it may have fried it or something. I’m going straight to the assumption that I need to replace the logic board but I’m open to any of your ideas. Here is what i’ve tried: Disconnecting the battery for 10 secondsRemoving the SSDBooting off an external USBHolding down the power button for 10 secondsResetting SMC and PRAMCharging the battery (with a 60w OEM Apple charger) for over an hour Thanks in advance!
I took out the SSD from the MacBook Air and stuck it into another MacBook from the same year. It booted onto the drive and continued to install the update. After the update was finished, I stuck it back into the MacBook Air and all was well. Im assuming its because she updated from Mountain Lion to Mojave and didn’t install the firmware updates in between. Everything works normally now!
Depending on your skills and tools you have you might be able to fix the logic board. I would review Louis Rossmann’s vids 2013 13” MacBook Air vids Check to see if this is the problem Macbook Air Not Turning On how to repair Otherwise replacing the logic board would be your only other option.
