Question: why does the xbox boot three times then flash red and green?

[Wekd]

actually
it reboot 3 times and then flash green and red light

I don't know if I delete the bios or the dashboard
but right now, I can't get anything out of my x-box
(I mean no image and no sound)

The only thing I'm pretty sure is that
I went to FLAH BIOS --> EVOX 6.1
and then I accidently delete that
and the next thing

X-box reboot 3 times and flash green and red light