Iphone 4s bad esn - still usable as a gsm phone???? Tags: iPhone Phones GSM Last response: February 26, 2013 5:35 PM in Cell Phones & Smartphones Share negril January 22, 2013 10:29:03 PM Is an iphone 4s with a bad esn still usable with a good sim card as a gsm phone since it has both capabilities? More about : iphone bad esn usable gsm phone inzone February 26, 2013 5:35:14 PM You should take the phone to the carrier that you want to have a contract with and ask them. m 0 l Can't find your answer ? Ask ! Publish Related resources i bought a used iphone 4s amd it had a bad esn. how can i use it? Forum More resources Read discussions in other Cell Phones & Smartphones categories Android BlackBerry iPhone Multimedia Windows Phone !