Rear screen USB not working

[humdoon]

I have a problem with playing video in rear screen using rear USB port or SD card not responding. i can only play DVD
I checked the power in the usb port and it is ok that i can charge phone.

Anyone know What's the matter?

 

[momofx]

Did you ever figure this out? I got the same problem too...

 

[humdoon]

Any solution?