Well, good afternoon. We like to try use our manners around here, like please and thank you.
I am not certain of what you are asking from us. When you say upgrade, I say what does your SERVICE PROVIDER CONTRACT say about this?
Take you phone to the MOBILE STORE your purchased it from. No amount of tech speak will upgrade your hardware.
If you are just trying to get a software or OS update, go to the app store for your phone and look for updates.
Good luck using after applying.