I tried out that MHL HDMI adapter on my SGS4 (product 10020 on MonoPrice.com) that I mentioned in my previous post. However, after connecting it up, including the USB plug into the OEM wall charger, when I enable screen mirroring on my phone, I get the message "No device found".
My TV doesn't have native MHL support (it's a lower end LCD TV from a few years ago), I thought this cable would do it he trick. Is there something else I need? Forget about sound issues that the OP was/is having, I'm not even getting a picture.
Technically, I'm going through an Onkyo A/V receiver, but even when plugging directly to the TV's HDMI input, I don't get anything on the TV. TIA.
Edit: A couple other products I may try are: