I purchased a used Nexus 7 and the previous owner did not reset it before shipping to me. I have tried multiple times to reset it both hard and soft. After it powers down it does not come back on. When I am able to turn it back on (sometimes 12 to 24 hours later - other times just 10 minutes or so) it looks just like it did before I tried to reset it. I also tried upgrading to KitKat 4.4.2 but the same thing happened. Nothing changed. I have read about flashing using my PC but am waiting for the Nexus 7 to allow me to turn it back on. Is there something easier I can do or am I missing something simple? I have read numerous posts about resetting and all are similar with a few minor differences.