The TV didn't respond. Wrong code. Newer models.
Since this is a technical support issue rather than a request for an academic paper, the following guide provides the technical breakdown, causes, and fixes for this specific error. dvb select type error samsung tv
If you do not use the TV's internal tuner (e.g., you use a Roku, Apple TV, or cable box via HDMI), simply press the Source button on your remote and select the correct HDMI input. This should bypass the DVB setup screen entirely. The TV didn't respond