: Features a dual or quad-core ARM Cortex processor (often MStar or HiSilicon-based).

: Supports firmware flashing via the USB port using a .bin or .img file during the boot sequence. Where to Locate the Firmware

This board is designed for entry-level to mid-range Smart UHD TVs. Here are the key technical specifications:

The is a common smart TV mainboard supporting 4K (3840x2160) resolution. While I cannot directly provide the private download link for "Sonic part5.rar," you can typically find these multi-part firmware files on technician forums or community repositories. CV338H-T50 Mainboard Features

: Native 4K UHD (3840x2160) via V-by-One interface.