Press and on the TV (not the remote) while plugging the power cord back into the outlet.
The "part10.rar" suffix indicates this is the 10th segment of a split-volume archive, meaning you must download all parts (e.g., part01 through part10) into the same folder before you can extract the final firmware file. Mainboard/Chassis: P150-638V6.0 Resolution: 3840x2160 (Ultra HD / 4K)
Installing the wrong firmware version can "brick" your television. Verify your board number (P150-638V6.0) and screen resolution match exactly before proceeding.
