I have formatted 2 Roamio 500gb drives and an 8tb drive to reuse in a Roamio. Once I put in the formatted drive, I am able to go to guided setup and setup everything with no problems and I have a guide and am able to view the shows, HOWEVER, when I turn off the Roamio and turn it back on, it goes to starting up for a few minutes and then a blank screen-happens on all of the drives. I don't know why it's happening? I am running Hydra-argh...and also cannot rollback to the original OS. Any suggestions on what to do, besides using it as a paperweight? I have also tried ALL of the kickstart codes...didn't work.