Waste of time take the thing back
You dont trouble shoot out of the box new, unless yer an idiot
Any other tells you can cite?
True that...just giving him a backlight tip for the future. Don’t think LED backlights as reliable as the old “CCFL’s”: https://www.electronicdesign.com/technologies/displays/article/21753790/driving-the-backlight-ccfls-or-leds