Facing TV Problems? Ask a TV Technician.
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Are you trying to set up a Dish network setup?
Or is it some other type of TV source?
The cannot detect SWM error message, is typical of a dish or satellite setup attempt, where nothing is being detected, either owing to incorrect options in the setup choices, or the selection of the wrong type of satellite dish, etc.
Is that more or less what you are trying to get working?