Unfortunately I don't have the wi-fi module, so that could be the problem? I just have my SmallHD 502 plugged into the HDMI on the 1DX II. For some reason, the touch screen is disabled once the monitor is plugged in. I've delved into the settings and can't seem to find anything to turn the rear lcd screen back on. Definitely let me know if you have better luck once you receive yours. Stoked to hear that the ISO performance is looking better on the 1DX over the A7. Were the stills RAW or JPGs? On the original 1DX, the high ISO performance was atrocious..