You do not need to virginize to go to 1.1.3/1.1.4 from 1.0.2. There were issues with 1.0.2 to anythng up to 1.1.2 but not after 1.1.3. If a DFU restore does not work, you most likely have a hardware failure. If you are skilled and brave enough, replacing your comm board/logic board will fix you up. $100-$200 on ebay.