Registry key has been unlocked. This is an internal HD model, but the HD has been removed because it broke. I planned to replace it with a new HD and use it, but: 1. Replace the HD and restart -> Red light flashes 2. Network recognized OK, so channel scan 3. Red light stays on constantly, and network is no longer recognized This is the situation I'm in. Therefore, I purchased a new unit (参号機) and tried connecting it, but the same situation occurred, so there might be a problem with my home environment. I don't have any more knowledge and can't solve it, so I'm putting it up for sale. Only the main unit and adapter are included. The HD is not included.