How do you get an upgrade for your cell phone if your contract is not up yet?

I have had this isuue. The only way to do it would be to sign a new 2 year contract (cingular, and tmobile) Im not too sure on the other carriers.
I have had this isuue. The only way to do it would be to sign a new 2 year contract (cingular, and tmobile) Im not too sure on the other carriers.