It Works ! - Sony UBP-X1000ES HDMI "Audio" output to Chinese I2S Adapter Board to DS Sr. I2S Input

Well that hasn’t been my experience and yes, you need to solder the ribbon cable to the blue board in order to reverse the channel. For CD’s or anything PCM, the “reversed” I2S is excellent (not reversed when you play CD’s/Hi bitrate PCM). It’s indistinguishable from the optical and S/PDIF inputs to my ears.

Sorry it didn’t work for you. My experience is the total opposite.