Small problem with Deviation

Hello,
I just spent my Devo 8S in Deviation and when I turn it on, it makes a screen scanning, I wanted to know if you have the same thing and is what's it to malfunction.
Thank you for your answers.

Does anyone had this problem?

Thanks PB.
When I switches the TX on the screen appears as a scanning at 30 °, the bottom of which is inclined banked to the right which divides the screen into two or 3 then a first mask "Safety" appears with a frame thin vertical and then the mask "Safety" is displayed properly.
I have no problem to extinction.
I filmed with my mobile, but it should be too fast and you see nothing.

What do you think?