Me neither! My problem was complicated by using the IR input jack on the TV, which also wasn't working quite right - took forever to sort out that there were TWO problems going on simultaneously, first with connectivity, and second with only the HDMI codes. The standard Power, "Video" and tuner input commands worked fine.

I used code 654 otherwise (only had to learn 6 auxiliary functions), but did try almost every Sony HDMI code in the database and none worked.