It has been awhile since i have tried to transfer any files (like music) from my PC to my phone via usb. I just plugged in my USB to PC any nothing pops up like it used to to allow data transfer. My computer doesn't recognize my phone either. I'm assuming it has something to do with now being on KitKat? I'm just trying to transfer some music. I tried Kies air which i've never used before but have difficulty finding the music i want to transfer on that.