What you can check safely
Restart once and check whether lines appear on all sources. Avoid pressing the panel; cracked screens generally need specialist assessment.
Lines, flicker or physical panel damage may involve the display or internal electronics; avoid pressing the screen.
Restart once and check whether lines appear on all sources. Avoid pressing the panel; cracked screens generally need specialist assessment.
Lines, flicker or physical panel damage may involve the display or internal electronics; avoid pressing the screen. Other causes may be possible; a technician needs the exact brand, model and symptoms to narrow them down.
Request an inspection if the problem continues after the basic checks, repeats, shows an error code, trips power, leaks, smells burnt, or involves internal components.
This guide is general information, not a model-specific repair procedure. Error codes and user checks can differ across manufacturers and models; consult the official manual for your appliance.