For troubleshooting methods to change the resolution on your Vizio TV, try resetting your TV to stop any unwanted resolution changes ongoing content, turn off the ‘Zoom Mode’ within the ‘System Options” menu, and be sure you are changing the aspect ratio for any ‘Wide Mode’ needs.
For questions concerning a factory reset on a Vizio TV, the factory reset code is ‘0000’ if not previously changed to a specific code, try resetting your device if you encounter issues with the TV locking up while in the middle of a reset, and disconnect your device from power to complete a reset.
If your Vizio TV has dark spots, it could be that an LED strip has gone out, that a display panel has been damaged, causing it to have difficulty retaining pixels, or it might be a problem that can be resolved by resetting the TV if dark spots randomly come and go.
If your Vizio TV menu keeps popping up, the most common cause is that either the menu button is stuck or another button on your remote is stuck. To see if this is the problem, remove the batteries from the remote and rapidly click the menu button as well as all other buttons on the remote.
If your Vizio TV has no signal when on the RGB input, this is because this input option is only to be used to connect through video signal with a computer. Therefore, if no computer is connected and you are trying to complete a different function on the input, no signal will be present.
If your Vizio TV is having issues with screen mirroring, make sure you are using a Chromecast-compatible app and device. Ensure that the devices are on the same network. Disable power saving options on the streaming device. Try restarting the TV, streaming device, and router.
If the Vizio TV closed caption menu is not available/grayed out, use the remote to access the closed caption setting within the TV. Using the remote, press the ‘CC’ button to enable closed captioning. If the remote does not have a ‘CC’ button, press the ‘Menu’ button to navigate to your TV’s settings.
If your Vizio TV starts in zoom mode, make sure the closed captioning feature is turned off. Press the dash button (-) on the remote to change the zoom ratio. Make sure other devices connected to the Vizio TV are programmed with the same ratio setting.
If your Vizio TV is displaying a black and white screen, make sure the audio and video connections are in the correct ports. Make sure the colored jacks are in the correct color ports. If the TV has recently been moved, make sure the cables are tightly connected.
Press Menu on the Remote Control and then press System. Then press on Reset and Admin. Select Soft Power Cycle while powering off your router. Now check and see if your Vizio SmartCast TV is functioning properly. See if the White LCD Power Light is on.