I purchased a cheap endoscope which was advertised as an android/usb 2.0 endoscope, i have yet to get any app to recognize the device. I was able to test the device on my pc with some software i found for windows and the device works fine there. i have usb debugging enabled and tried everything I can to make this camera work on my phone. It is a galaxy note 4 and by researching my phone should be able to support this device just fine. when i plug it in, the LED lights do come on, so i know its getting power. I have cameraFi and all the other programs on google store, but i think i just be missing something. anyone know how i can fix this?