I have read here that four flashing lights means the hard drive has died. Original hard drive WD Blue 3TB model WD30NPRZ. I was unable to find a 2.5" 3TB internal drive so I picked up a Toshiba MQ03ABB200 2TB drive. I installed it and now I have a green light, but no signal. Bolt also has a multi stream cable card from Comcast. Any ideas?