I’m in a bit of a panic. I have two Mac mini M4 computers: one is the base model with 16GB RAM and 512GB storage, while the other is a M4 Pro with 24GB RAM and 512GB storage. I’m looking to sell the base M4 model, so I started the factory reset process. I signed out of everything, including Find My Mac, and followed the instructions for erasing all content and settings.
The Mac performed the reset and rebooted, but instead of the familiar setup screen, my display showed ‘No HDMI input detected.’ I noticed the white LED on the front was initially lit but then went off, only to come back on, all while nothing appeared on the screen. This flickering continued for a while, with the LED turning on and off repeatedly. After several cycles, the white LED shifted to orange and started pulsing in a way that resembled Morse code, spelling out ‘SOS’.
This seems pretty serious, and now I have no output on the screen at all. I’ve tried power cycling the device multiple times, but nothing changes. The Mac mini is only six weeks old, and I did purchase AppleCare+ for it. Thankfully, my other Mac mini M4 Pro is set up and functioning perfectly.
I’m really in a bind here and could use some help to resolve this issue.
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