Larose375 Said:
"Keyboard lights up, but won't turn on: When trying to turn in my Mac, the keyboard lights up, but the screen itself won't. There's a slight buzzing noise like it is trying to work but nothing actually happens. Anyone else have this happen? Any tips?"
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No. I have not had this happen. Refer to these tips:
Troubleshooting MacBook Air Power:
A. Black Mac Screen:
Go Here: If your Mac doesn't Turn On or Start Up - Apple Support
Using External Devices: Try Resetting the SMC and NVRAM, but this time, using an external keyboard. Connect an external monitor and see if you get an output.
B. Mac Power Issues:
Try a New Charger:
If it is currently charging from a charger, then use a new charger:
A Few Links to Refer to Power: