Hi there!
I have very strange problem...
I own red, original N9. It had original PR 1.3 001. I wanted to flash OpenMode to it, so:

1. Flashed original firmware (001).
2. Then, before first boot, flashed OpenMode and rebooted.

On other N9, it worked as normally should. The other N9 booted, generated open-aegis keys etc. and work normally with OpenMode.
But the red N9, no! It showed warranty warning.

I tried to update to 009, and before first boot flash OpenMode - still the same.

What the h*ll? I don't understand that...
Please, help