Hi. I have a brand new Sonic Port VX and while it works great with the mobile pod app and other software, I find that when I plug in the mini USB cable supplied and connect that cable to my iPhone charger that I get the "this accessory may not be supported" warning and my device will not charge. This happens with both my iPhone 5s and my iPad mini. Both have iOS 8.1.1 installed though this also happened before I updated from 8.1 as well. I am using the supplied cables and have also tried different chargers but with no joy.