Will someone please help me get my rooted Verizon Galaxy S4 running Google Play off of 3G stupid and onto 4G? Through eBay I purchased a rooted Galaxy S4 running Google Play, managed to get it activated with correct phone number (a challenge for this novas) but it only operates on 3G. I am certain there is a simple fix but I am insufficiently learned to figure it out. Frustrated! Please help!?