Plug the TV back in while continuing to hold the button until the "Software Upgrading" progress bar appears.
: Copy the firmware file directly to the root directory of the USB drive (do not put it in a folder). Flash Firmware : Power off the TV and unplug it. Insert the USB drive into the USB port. Press and hold the Power button on the TV panel. Plug the TV back in while continuing to
: Using the wrong firmware (mismatched panel or resolution) can lead to an upside-down display, solarized colors, or a "black screen" brick. Always verify your Panel Number (ST4851B01) before flashing. Insert the USB drive into the USB port
: Format a USB flash drive (8GB or smaller is recommended) to FAT32 . Always verify your Panel Number (ST4851B01) before flashing
The is a common smart Android TV mainboard often found in brands like Nikai . The specific firmware file you are looking for— CV338H_A50_1920x1080_NIKAI_Panel_ST4851B01_USB_part04.rar —is part of a multi-volume archive required to update or repair your TV's software. Key Specifications Mainboard Model : CV338H-A50 TV Brand : Nikai Resolution : 1920x1080 (Full HD) Panel Model : ST4851B01 Update Method : USB Upgrade Where to Find the Download
: Channels like Kazmi Elecom are popular sources for specific CV338H firmware dumps.
: Sites like LEDTVSOFTWARES.COM frequently list this specific board-panel combination, though direct links may require registration or vary in availability. Installation Steps via USB