Typically installed via USB (MstarUpgrade.bin) or flashed directly to the eMMC memory chip . Installation Guide
exactly before proceeding, as variations in screen panels (even for the same TV model) may require different firmware versions. *35019017 FIRMWARE FREE DOWNLOAD - Receiver Pro Download 35019017 1920x1080 DNS 42AK9000 part4 rar
Press and hold the (Volume Up) button on the TV's physical side panel. Typically installed via USB (MstarUpgrade