This smart TV was reported to be shutting off on its own. When I plugged it in, it appeared to be fine but when I connected via wifi to the internet, it started to shut down after a few minutes. This model uses an all-in-one combination board with no separate wifi module that can be replaced. In order to factory reset it, I had to turn off my wifi and use the remote code menu-0-0-0-0-0-0 to get to the service menu. This model is similar to Element brands as well. I tried using wired ethernet and the TV shut off as well. Replacement of the board would be more than the value of the TV.