sound works it flashes a red white black screen of TCL home screen

55in TCL TV Roku. I turn the TV on the sound works it flashes a red white black screen of TCL home screen and then it goes off. I've tried resetting all these different codes. I need some repair. I tried the flashlight in the background black screen couldn't see a thing. Soundworks comes on for a second and then it disappears to a black screen. Repairable?

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MissAnne Gauvin how did you try to reset it? Everything disconnected from the back of your TV? What have you checked besides the "flashlight test"? Do you have a complete model number for your TV?

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