I upgraded my TiVo Bolt with a 4TB WD drive that came recommended here. (Maybe five or six months ago.) I upgraded to Hydra at the same time. Last night while watching, I noticed that an update had downloaded at some point that day (network settings said awaiting restart). I powered things off as usual (Bolt into standby mode) when I was done watching. Fast forward to tonight, starting up I had no signal from the TiVo. After yanking the power and reconnecting, the green light comes on, then a signal with the newer TiVo logo comes up. After a brief blank screen the amber lights flash for a few seconds, then I'm treated to a grey arrow on screen with the TiVo television and the words "STARTING UP." And that's it, that's all she does. I can't get the Bolt to respect the kickstart 54 code. The green/amber lights alternate, but after this it only ever returns to the STARTING UP screen. Any ideas guys?