Ensure the dump file specifically mentions 1366x768 . Installing a 1920x1080 file on a lower-resolution panel can result in a distorted image or a "No Display" black screen.
Use WinRAR or 7-Zip to extract the .rar file. You are looking for a file ending in .bin (often named MSTFLASH.bin or VST59S.bin ). Ensure the dump file specifically mentions 1366x768
Plug the prepared USB drive into the TV's USB port. Initiate Update: Plug the TV back into the power outlet. Ensure the dump file specifically mentions 1366x768