Advertisements Got the 4 flashing light error and read that bad HDD was most likely problem. Replaced a 3TB with 2TB. It booted fine and made me go through Guided Setup again. After that completed, I kept getting the black cable card installation page. Rebooted Tivo, restarted tuning adapter, reseated cable card. Same issue. Called Spectrum cable card support and tech said the cable card was not being read by the Tivo correctly. I asked if just needed to be re-paired and she said no. She finally said the card needed to be replaced and scheduled a tech to come out. Anyone been through this? It was previously TWC service before they got rolled into Spectrum.