Open the Settings app and go to System > About phone, or a similar menu, depending on your Android version
Find the "Build number" entry and tap on it repeatedly several times (you will get a countdown as you tap). You should get a notification saying that developer options have been enabled.
In the System menu, go Developer Options.
Select USB Configuration
In this menu, change the option from whatever is currently selected to a different option, other than "Charging", we recommend trying "Media Transfer", "RNDIS" or "MIDID". The actual choice is not so important as the device will reset to what is needed for any attached device. Just the nature of changing this setting, resets the USB system.
Wildlife Acoustics, Inc.
3 Mill and Main Place, Suite 210
Maynard, MA 01754-2657 USA
+1 (978) 369-5225
+1 (888) 733-0200