Q: My iphone won't connect to itunes or my computer!

you may have to uninstall and reinstall itunes and all of its componants and that should resolve your issue!

http://support.apple.com/kb/TS1591

Couple of quick questions on what does happen with your computer when you plug the phone in.

First - Does the computer show an auto play window when you plug the deivce in?  Basically asking to import pictures.

Second - Does the device charge on the computer?

Third - Laptop or desktop?

Fourth - Is the phone plugged into the closest USB port to the power supply on the computer?  These seem to be standard USB 2.0 ports (unless you have a really old or a really new computer).

Fifth - Did you uninstall all 6 pieces of iTunes or just the iTunes progam it's self?

Follow this article http://support.apple.com/kb/TS1538

When you uninstall and reinstalling itunes follow this article to make sure that you went through the process correctly- http://support.apple.com/kb/HT1923?viewlocale=en_US

Uninstalling and reinstalling wont delete anything on your library, I would try that if you have tried everything else in that article.

Because the iphone isn't even charging it is sounding like a problem with the usb cord or the device it's self.

Did you use the same USB cord to plug the other iphone into the computer?

Does your iphone charge with that same cord in the wall oulet?

I'd like to add as i have had this problem too.

Mine was NOT a hardware problem. I was able to charge my phone again by uninstalling the driver for the iPhone.
so clearly a driver problem. I am now still unable to connect to itunes.

Yes i've reinstalled itunes 17 times and redownloaded it 6 times. It doesn't help

I found my phone charged when runing in Bios, so i concluded deleting the driver will at least let me charge my phone.

i had the same issue after 2 hours of failures i was able to fix the issue.

basically what has happed is some how your iphone driver has stopped working.

go to your device manager. more than likely under other devices you would see your iphone under recovery mode. roght click--->properties. click on driver tab and update driver.

this would get your itunes to see your iphone. recover your iphone and then update or not.

let me know if this helps.

good luck