Hello everyone. Its my first post here. I live in south Korea and recently ordered the Schiit Fulla for portable use. I use a Samsung Galaxy Note 5 and bought a USB Micro to Mini cable from amazon to pair with the Fulla. But after I revived it, I realized that my phone didn't recognize the Fulla. To make sure the DAC itself isn't broken, I hooked it up with my PC and sure enough, it worked perfectly fine. Is the Fulla itself unable to work with a smartphone or is the USB mini to micro cable the problem? I really want to use the Fulla with my smartphone.... truly an incredible device for its size.
Either your smartphone doesn't support USB DAC natively or it doesn't output enough power to power up Fulla.
Download this and install it on your Note 5: http://www.audio-evolution.com/downloads/USBAudioPlayerPROTrial_2.2.4.apk
If it detects Fulla, then it means your Note 5 doesn't have native USB DAC support. You can buy the full version of the apps on PlayStore and play music through it.
If it doesn't detect Fulla, it means your Note 5 doesn't have enough power to power up Fulla. You will probably have to use a powered USB hub, which will be very cumbersome.
In any case, if you are looking for a USB DAC for Andriod, Fulla is actually not the best of choice.