To use Smart Switch for PC/Mac, your Galaxy device’s USB connection setting must be Media device (MTP). To change your USB connection settings: Connect your Galaxy device to your computer using a USB cable. From the Home screen, swipe down from the top of the screen to access the Notification Panel. I have an S2 and am attempting to transfer everything to my S6. I downloaded the Smart Switch app to both devices and it is not connecting. I downloaded Smart Switch to Windows PC and when I connect the S2, Smart Switch says “Unsupported Device. The connected device is not supported by Smart Switch.”.