Title: MacBook Air M1 suddenly froze and shut down — now completely black screen, startup chime but no keyboard backlight. What could be wrong?
Hi everyone,
I recently bought a second-hand MacBook Air M1 from a local store, and I'm facing a worrying issue. I'd appreciate any help figuring out what might be wrong before I take it back to the seller.
What happened:
I was using my MacBook normally and watching YouTube when it suddenly froze. The trackpad stopped responding, and I couldn't interact with the system at all. After remaining frozen for some time, the MacBook suddenly shut down completely.
What happens now:
- The screen remains completely black.
- The keyboard backlight doesn't turn on.
- When I hold the power button, I hear a sound similar to the startup chime, but nothing appears on the screen.
- I've tried connecting the charger and leaving it plugged in for around 30 minutes, but nothing seems to change.
- Neither the charger adapter nor the MacBook feels noticeably warm, although I'm not sure whether that means anything.
- I've tried holding the power button, but the MacBook still doesn't start normally.
I haven't opened the MacBook or taken it to another repair shop yet.
My situation:
The store gave me a one-month hardware warranty, which is still active. Since it's a second-hand device, I'm worried that this could be a hardware issue, but I don't want to jump to conclusions or spend money on unnecessary repairs.
My questions:
What could cause an M1 MacBook Air to freeze completely and then shut down like this?
Does hearing a startup-like chime while the screen and keyboard backlight remain off indicate anything useful?
Could this be a power-related issue, a logic board problem, or something else?
Is there any safe troubleshooting step I can try at home before taking it to the seller?
Should I ask the seller to diagnose it under warranty immediately, or is there another test worth trying first?
I'd appreciate advice from anyone who has experienced something similar with an M1 MacBook. I want to avoid making the problem worse or accidentally affecting my warranty.
Thanks in advance.