problem with android jelly bean car stereo

Hello I have an android jelly bean car stereo and I dont Know wath happend because when I try to power on only apper the firs screen thah sayed "Jelly bean car multimedia system" then anything apper. then I press the power on button again only the butons power on but anithing happend in a screen. I open the radio and I discover it have a MTC_RK3066_rev0.3a 2014.03.27 mainboard.

The only function that works is reversing cammera no more.

Can You help me?