I have a DB500s with firmware (Release 1.09) that is not displaying a proper intact picture, the screen is showing some kind of a black shadow and most of the time distorted and flickering picture (as if a constant breaking in signal broadcasted).

I tested the box on another satellite setup but it shows the same problem and tested another receiver on my satellite setup and its working perfectly.

I tried to restore the box to factory default from Expert setup and flash the original firmware again but this didn't fix it.

Can you help me with this problem, could this be a hardware issue? Is there any log that I could examine to troubleshooting this problem?