This tool checks if USB device is recognized by Android system.
This application is allowing you to check if your USB port works properly in accessory and host mode. After connection, it displays the device name and related informations.
If your USB stick or 3G modem are not recognized, you can use this application to check what is the root cause of the problems and how to fix device.
You can figure out if the connected USB devices are recognized by the system and see what are the device identificators, interfaces and endpoints.