I need some help. My phone received a new update, and in receiving the update, I've lost the ability to connect to any 4G networks. I went to the Verizon store yesterday and received a new SIM card, as I'd seen that many people fixed their S3 by doing this. After replacing the SIM, the phone struggled to connect to ANY network. With a few reboots, it finally connected to the 3G networks consistantly. One of the technicians at the store said that the next step would be to do a factory reset on my phone. In doing this...my phone was completely wiped and clean...however, apart from losing my contacts, pics, data, and apps....still...only 3G networks are available on my phone. What else might be done to fix this problem?
