My phone was jailbroken, had the app that lets you change the att logo to anything. Upgraded and got rid of jailbreak, but the name in the corner never changed back to att. I would just reset it in settings but my screens not responding and I wanna take in to apple but dont want them to see the name in the corner. And my iphone will not reset through itunes, anything I can do? Will they check out/replace my phone if I take the sim out? and will that get rid of the name?