About three am my dvr shut off and started downloading updates. of course I didn't just leave it alone I tried turning it off/on not realizing what was going on. Now its 3 hours later and I still don't have my cable back. Its had different codes pop up like f1 and dui and FP but if I turn it off the whole thing goes blank and when I turn it on the channel is displayed but it never switches to the time and my TV (an hdmi) is not picking up any signal. I tried to unplug and reboot but when I do it just starts at dui then dl with a running cursor all over again. Any ideas what's wrong with it?