ChoonYes. 10.3 is a big fail for this and likely many devices, from what I've read they removed OTG capability. The DAC is pretty much useless to me, i bought this because it would work on my iPhone, and Apple ruined it.
TwobHave you tried the pass through power adaptor by Belkin. It's the power draw that usually knocks these things over. It works for some of my other powered DAC/amps. Allowing them to be powered directly from a USB source... Perhaps a battery pack?