Contacted HYPERKIN and there is no way change the settings on this device. I have found that the RCA cables send out sound while the HDMI is sending both audio and video... the problem is that the TV will play the audio through the RCA cable until it notices the HDMI audio and then it cuts out. I can not find a setting, so I'm wondering if there is some mod or a slitter I can buy that will allow me to split or turn off the HDMI audio so I can have audio.
I did find a couple cheap HDMI audio splitter, but they all seem to split the audio and still pass it through the HDMI cable... which will not solve my problem. Can I remove a pin from the HDMI cable or something to block the HDMI audio?