I had the same issue with my new iphone 6 plus. I tried a new apple usb cord but it didn't work.change all the usb port but it didn't work.
Just did what Andgrl89 posted and now it work perfectly. It fixes all the software problems and you won't loos any data stored in the itune.
Andgrl89Feb 7, 2014 11:06 PM Re: My iphone won't connect to itunes or my computer!
Re: My iphone won't connect to itunes or my computer!in response to lll
this can help but there was another page in the apple support communities that i found somewhere that helped. i dont know where it went but i remember what i did.
like you, my iphone was NOT being recognized AT ALL by itunes. i tried a few things here and there and even tried using different ports and cables. that didnt work. but i found this information and it worked for me.
just as a FYI, uninstalling itunes from your computer wont delete any of the stuff you have on it. that stuff is on the computer and just shows up in itunes.
also, im doing this on Windows 8.
ok, so first, you get to your control panel. then go to uninstall program. thereare 5 programs that you will uninstall which is annoying but it worked.
uninstall:
1- iTunes.
2- apple application support
3- apple mobile device support
4- apple software update
5- bonjour
restart your computer. come back to the uninstall program page to make sure those are all uninstalled. then restart your computer again.
now, you can install itunes. then it should prompt to restart computer - do so, or restart if it doesnt prompt.
now try connecting.
i hope that helps. its a pain in the butt, but it helped.
Good Luck!!!