Question Haier Tv problem

[Gospodarz]

Hello. I have a problem with a Haier Tv Le32c800H. I was in options menu, and accidentaly hit some option that keep poping up screen with "Haier inspired living, DVB, USB video, etc" and now i can't use the remote Control or even buttons on the TV... There's a way to repair this problem? Problem picture

 

[Gospodarz]

Now i know that this is a demo mode. But no idea how to get rid off it