While holding down the Power button on the TV (not the remote), plug the power cord back into the wall.
Release the button once you see an "Upgrading" or "Software Updating" progress bar on the screen. Do not turn off the power during this time, as it could permanently damage the mainboard. Download MS638 PC822 3840x2160 Aconatic 49DSU800 part1 rar
stuck on the logo screen or acting sluggish? Often, these issues stem from corrupted system software on the MS638 PC822 While holding down the Power button on the
The TV powers on but never reaches the home screen. System Lag: Smart features and apps are slow to respond. Download MS638 PC822 3840x2160 Aconatic 49DSU800 part1 rar