Turn on the TV. If the motherboard supports auto-update, it will begin flashing the software. during this process, as it can permanently damage the board. Why this Firmware is Needed
Because the file you are looking for is labeled it is part of a larger multi-part RAR archive. You cannot use this file in isolation; it must be combined with all other parts (part01 through part08 or more) to reconstruct the original firmware image. Download MS338 PB818 1366x768 REF60 part08 rar
For more technical support or to find the remaining parts, you can check specialized electronics repair forums like Soft4led or KazmiElecom . Turn on the TV