Why won't my iPhone 5s connect to iTunes on my computer?

It only says Apple iPhone on the computer and doesn't show any options to sync on iTunes even with the new update and it says trust computer and when I put trust this computer it disconnects my phone but leaves it visible in my computer

I Think this will help you:
http://www.howtoidevice.com/iphone/idevice-parts-and-problems/itunes-not-dectecting-iphone

Have you found a fix? The above link is no longer valid