DisplayOut with component cable help please

[Jz916]

I'm having trouble getting it to work. I could hear the sound from the tv but no video. I downloaded Displayout via cydia and have the official apple component cable. Can someone please help me out?

 

[Jz916]

forgot to mention its jailbroken iphone4 on 4.0.1

 

[jeans94621]

get resupported 4 in cydia it works with displayout