www.avr.ru
: Press and hold the Power button on the TV (not the remote) and plug the TV back into the power outlet while still holding the button.
Do you have the (often printed on the green PCB) to double-check this firmware's compatibility? How to Update Your Vizio TV Software Download MS3458 U801 3840x2160 Vios TV49174K rar
: 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). : Press and hold the Power button on
: Use a USB drive (8GB or smaller is often most compatible) and format it to FAT32 . Download MS3458 U801 3840x2160 Vios TV49174K rar
The firmware you are looking for, , is specifically designed for the Vios TV49174K