I forgot to restart my phone when rebooting it this morning so after power down, had left it off. Then the alarm went off!? It looked as graphical as the normal times it goes off, but when I selected snooze, I was prompted by an option to turn the phone on at which point I twigged!

I selected yes and the NOKIA logo appeared and it slowly (well not that bad) booted up normally. How on earth did it display that much graphical complexity, and play a musical* alarm sound all from firmware? I'm fairly certain it hadn't booted up to be able to do the alarm and then was resetting to normal boot when I asked it to boot up fully, but that's one option.

Perhaps the firmware is way more advanced than I assumed, either way I'm impressed and confused. Can anyone shed any light?

*To be honest this is the default audio.