Iphone 4 problems won't connect?

When i plug my phone into the computer all it does is make a sound it doesn't connect to itunes or anything, if i restart my computer with my phone plugged in it will show on itunes and such but once its taken off it won't reconnect unless i restart my computer again

How to import MP3 files to iTunes?

Trying to put music from my computer onto iTunes so that i can put it on my iPhone. Every time i click "add file to library" and choose the folder i want, nothing happens.

IPhone isn't recognized after failed restore in recovery mode?

I was trying to update my iPhone 4S' software, and iTunes said it had failed due to an "unknown error". This has happened before, so I disconnected my iPhone and it came up in iTunes as in recovery mode. I clicked "restore", and after preparing it for the restore process, it said it "failed to an unknown error" again. I disconnected my phone and now iTunes won't detect my phone, and I can't escape from the screen with the USB and the iTunes logo on it.

Why isn't my iPhone 4s Connecting to Wi-Fi?

My iPhone 4s isn't connecting to Wi-Fi. It was earlier, but then I left and came back, and now it's not. I reset my phone, turned it off and back on, and reset the network settings. The router is working just fine on a laptop, but it isn't connecting on my iPhone. Anything I haven't tried yet that could work?

Flashed iphone 4 on metro pcs 3g data network not working

My iphone is flashed to metro pcs but when i connected it to itunes after i restored and updated it, it won't connect to 3g anymore?! i keep getting this message saying "could not activate cellular data network"?! Every time i try to use safari or itunes on my iphone.

How to data block an iPhone 3GS?

I'm a broke college student about to graduate and can't afford any fancy phone but need to check my email all the time. And there's Wi-Fi pretty much everywhere you go nowadays so why bother with buying a data plan. Anyway, I just want to figure out how to data block it so I don't have to keep calling AT&T back every month.