My tv has a USB error saying it doesn't have enough power supply to connect a power supply cable when the TV works just fine just it's a notification that won't go away an takes a third of the TV display screen what do I do to fix I've restarted I've cleaned the USB port I've reboot it reset factory rest everything but nothing works I need help ASAP
Do you have something plugged into any of the USB ports on the TV? If so, then don't use it. Most streaming devices require more power than a TV typically provides at it's USB ports.