3 months left on Verizon contract and my D4 has lost its mind. Screen is flashing, switching screens, taking random screen shots, can't text and calls drop as the phone randomly shuts off. Have done a factory reboot, cleared caches and NOTHING is working. I'm not technologically savvy, so if anyone out there has a suggestion, please give it to me step-by-step. Verizon has said there is nothing they can do for me until my contract is up. To their credit, they said it very nicely.