T-Mobile / Galaxy S4 / plugged my phone into the computer and the computer cannot find the phone. I checked the phone and the USB in not there to make it accessible on the computer? I go to storage - and there is nothing USB there - I saw posts that there should be 3 dots - no dots - no nothing? I have had the phone since June and I think that I have hooked it up to the computer before - but I think that there have been updates, and I don't think that I have tried since the updates. Any ideas how to hook it up to the computer? I am trying to get the photos that are in my dropbox out of the gallery on my phone taking up space - there is no way on the phone to delete them. I tried to download kies 3 onto the computer btw - but that didn't help the phone any.