You have to unplug the tv for at least an hour. (The longer the better) after that, you have to hold down the power button from the tv (not the remote) while the tv is still unplugged for 60 seconds after 60 seconds continue to hold down the power button and plug it in. Keep pressing the power button for another 60 seconds. A blue or red light depending on the model should pop up. If it didn’t work in that time frame you can try and hold it down longer. If that didn’t work, then you have to hold down the power and the menu button on the tv at the same time while the tv is plugged in until a blue or red lights pops up and the tv turns back on. Hope this helped you guys!