I feel like I tried everything I can find online. Nothing works at all. The USB cord appears to work fine because my phone does charge but it doesn't do anything else. I can't have access to my files like phones or videos that's stored on my phone and get them through my PC. I saw something about a storage device. How do I know if there's one on my phone or how do I get it? I've done this before once on my computer and everything was fine. All I did was connect the phone to the PC with the cord and I was able to find my pics and everything through my PC from the phone. I just don't understand why I can't this time. The only thing I can think of is to download drivers but I didn't have to do that before. I have a Samsung Galaxy S3 smartphone.