I applied a recommended firmware update for an AirPort Extreme base station and now it won't boot. Briefly the light goes green, then off, then stays stuck on amber.
I did several factory resets, unplugging, plugging in while holding down the reset button, and although it blinks amber rapidly, as it's supposed to, it won't go through the full boot process.
As an example, wired connections do not engage, with the little green light in the socket never turning on. The switch connection doesn't light up either.
The AirPort Utility will not detect it either.
How do recover from this sort of thing? Is there a trick to getting it to get it together?