I recently switched from a 3G iphone 4 to an HTC thunderbolt which is 4G. I honestly can't stand this phone. After only using it a few times I realized I wanted to go back to my iphone 4. The only problem is I'm not quite sure how to do this. *228 will not activate from my iphone 4. I'm not sure if the sim card has anything to do with it or not. Activation will also NOT work by clicking on "switch or activate device" on the menu settings of my verizon. How do I reactivate my iphone 4? I'm lost!! HELP please???!!!