If you obtain the files (often named install_2842_1GDDR.img after extraction), the standard USB update method is:
The is a common Chinese-manufactured "three-in-one" motherboard (chassis) used in LED and LCD televisions across brands like Skyline , Harper , and Telefunken . It integrates the power supply, LED driver, and main processing unit onto a single board. Why You Need This File Users typically search for this specific .rar file to: Download RT2842P639 1920X1080 SKYLINE part2 rar
Wait for the update to complete (the indicator light usually flashes during this process). If you obtain the files (often named install_2842_1GDDR