Same problem with the
Pure² 4 meters flexible Full HD MHL cable - Micro USB to HDMI - including 11pin Adapter -. 1080p HDTV - 8-channel digital audio 7.1 Adapter as EPL 3FHUBEGSTD - fits Samsung Galaxy S4 i9500
Again, the S2 S4 does not work.
Since the product was purchased for my S4, not given function and seller lists him yet compatible, there are (k) a star and I'm not going to buy here again!