Hi, I'm using an unlocked iPhone 5 and I need to edit the APN settings for the phone. I plan on using Net10 but I can't get MMS to work without editing the APN settings. I have a t-mobile sim which isn't in service and I'm trying to change the settings while the t-mobile sim is inserted but the "cellular" tab doesn't show under Settings>General. Jailbreaking is not an option. How else can I edit the settings to get MMS working...?
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