TVs

TV switches HDMI input by itself

HDMI-CEC 'one touch play' lets a device grab the input. Turning CEC off and clearing saved device history usually stops it.

Cross-checked ~15 min easyBrands: LG, Samsung, All

Diagnostic steps

Unlock all 3 steps with expected values

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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TV switches HDMI input by itself · OnCall Tech