I recently tried straight talk for a few days, decided I didn't like it, and accepted an offer from verizon for a deal on unlimited. However, since I reinserted the SIM card and even went through the steps of reactivating the device, I have had NO mobile data connection whatsoever. I can receive and make calls/text but not use apps or web browser. 4G is grayed out as well. I have rebooted, removed/inserted SIM again, all the info for IMEI ICCD is there, airplane mode not on, mobile data switched off and on again. Absolutely nothing I do works. Am I forgetting something? Might there be some conflict for having used a straight talk SIM for about 3 days and swapping back?