I'm trying to update my phone(galaxy s2 skyrocket) using Kies. When i plug in my phone via USB, however, the computer doesn't recognize it at all. My phone charges, but that's it. Kies doesn't recognize it, computer doesn't acknowledge i plugged it in, and i don't get that little USB notification on my phone. So far, all i've tried is restarting kies, my phone, and my computer. but that didn't help. Any help would be greatly appreciated.