: 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.
: Combine all .rar parts and extract the binary file (usually named CtvUpgrade.bin or allupgrade_338_4G_1G.bin ).
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 : Copy the firmware file directly to the
If your TV is stuck on the logo or experiencing software glitches, follow this general procedure:
Plug the TV back in while continuing to hold the button until the "Software Upgrading" progress bar appears. Press and hold the Power button on the TV panel
: Do not power off the TV during this process. It will automatically restart once finished.
: Format a USB flash drive (8GB or smaller is recommended) to FAT32 . The specific firmware file you are looking for—
Firmware for these boards is typically hosted on specialized community forums and file-sharing groups. Note that because your file ends in part04.rar , you (part01, part02, etc.) for the extraction to work correctly.