[HereIsTom]

I think it is the last, because I have a perfect image with my HiMedia Q10 Pro!

But how can you state having a perfect image when it is Q10 is proved to clip black and whites?
Several users report back that the Q10 is altering the image, clipping the scale and so on.
I guess your standard for perfect image is below my standard.
Good black aren't good, if they are clipping detail.

I tried the standard Back and White patterns for brightness and Contrast settings, and I do not see clipping happening on my side.

Same here, I have no clipping, picture is perfect.
I'm sorry by my standard for a perfect image is high, that's why I have the Q10 Pro after several other players.