Firmware for these TVs is often distributed in large archives. The "part09.rar" indicates:
: Typically includes 3 HDMI ports, 2 USB ports, and RJ45 Ethernet. Download CV638H D50 3840x2160 Mitashi 55V20 part09 rar
: CV638H-D50, which supports 4K network connectivity and often runs Android 4.4. Firmware for these TVs is often distributed in