Unplug the power cord from the outlet. Hold the on/off switch on the TV down for 10 seconds. Release the switch and wait a few seconds. Plug the electrical cord back into the outlet. via
Where is TV reset button? (video)
How do you hard reset a TV?
Do all TV have a reset button?
Most TVs don't have a reset button. There is usually a place in the menu to reset the settings to the factory defaults but that won't help you turn the TV on. via
Why would my TV not turn on?
Unplug the TV power cord (mains lead) from the electrical outlet for 30 seconds. Try connecting another electronic device on the same power switch and check whether you can use it to confirm the issue is not coming from your power outlet. Disconnect all external devices connected to the TV. Turn on the TV. via
How do I reboot my TV?
How do I reboot my Smart TV?
How do I reset my TV without a remote?
Unplug the TV's AC power cord from the electrical socket. Simultaneously press and hold down the Power and volume Down (-) buttons on the TV (not on the remote), and then (while holding the buttons down) plug the AC power cord back in. Continue to hold the buttons down until Erasing screen appears. via
How do you unlock your TV?
What happens when you reset your TV?
Performing a factory reset will delete all of the TV's data and settings (such as Wi-Fi and wired network setting information, Google account and other login information, Google Play and other installed apps). After the factory reset process completes successfully, the TV will start the Initial Setup wizard. via
How do I reboot my Vizio Smart TV?
To do this, press the menu button on your TV remote and choose System > Reset & Admin > Soft Power Cycle. After choosing the soft power cycle, your unit will power off and restart. via