After turning on your JVC TV, you should immediately find out which culprit is causing this trouble if you see your TV displaying a no signal message. The probable causes of it are: The TV screen’s sudden flashing is not really expected. Sometimes you can resolve it just by turning off and on your JVC TV. But sometimes, the simple reset is not enough, and you may need to do the following to get rid of it: You don't state if your TV is working or not so I'll assume yes and that maybe the update has just hung or crashed. Also, ensure your TV receives proper power to run and that your TV’s main power board and circuit board are working perfectly. Make sure your TV remote and its buttons are working perfectly. Factory reset causes the losses of all stored data on your JVC TV, but still, it helps to solve your TV’s many difficulties.

Also, replace the malfunctioning high voltage transformer, remote’s dead batteries, bad main power switch, and defective power cord. Another problem with your JVC TV that you may encounter is your TV won’t turn on or off, but it keeps flashing different colors. If the internal issues are not creating the problem, then your JVC TV’s sound problem will go away by resetting your TV’s sound system by following the steps below:You turned on your JVC TV; its red light flashes, but no picture appears on it. The causes of the red light blinking but no picture on your JVC TV are: Your JVC TV is working perfectly, but suddenly its screen starts blinking. And it’s another problem that creates an annoying experience for you. If the antenna cable is properly connected, but the TV station is not working, then navigate to your JVC TV Menu The normal go to option would be to perform a full factory reset of the TV to restore it to the original state and then start applying the firmware updates.

Ah, still under warranty? Sounds like this could be the only option judging by the post I linked. Did you try any of the reset options in the link? Open your TV remote control’s battery compartment cover and remove the batteries. Press the remote’s power button. Then hold it for 3 seconds. Now reinsert your remote’s batteries and close the compartment’s cover. Wrap Up You turn on your TV, but after running for a while, your JVC TV keeps shutting off. Often the users go through this trouble. At regular or irregular intervals, your JVC TV may keep turning off. The leading causes of it are:Home Warranty disclosure for New Jersey Residents: The product being offered is a service contract and is separate and distinct from any product or service warranty which may be provided by the home builder or manufacturer. However, if following these steps above doesn’t solve the sound issue, follow another method. For 60 seconds, unplug and turn off your TV and hold your TV’s power button. After 1 minute, re-plug your TV and turn it on. 4. JVC TV No Signal For switching off the activated timer, press your remote’s right arrow key and complete the procedure. In simple words, when your JVC TV stop working, the easiest way to fix it is to soft reset it. The simple resetting steps are: Another picture-related problem is the noise bars that appear on your JVC TV screen. The causes of it are: