Do you have the (often printed on the green PCB) to double-check this firmware's compatibility? How to Update Your Vizio TV Software
: Use a tool like WinRAR or 7-Zip to extract the .bin file from the .rar archive. Place the extracted file directly into the root directory of the USB drive—do not put it inside a folder. Step 2: Installation Process Power Down : Unplug the TV from the power outlet. Insert USB : Plug the USB drive into the TV's USB port. Download MS3458 U801 3840x2160 Vios TV49174K rar
(and compatible models using the same motherboard). This update is typically used to fix "stuck on logo" issues or system crashes. Do you have the (often printed on the
: If your TV is still functional and connected to the internet, you can try checking for updates through Settings > Admin & Privacy > Check for Updates (menu layouts vary by brand/region). Step 2: Installation Process Power Down : Unplug