Plug the TV back in while continuing to hold the button until the "Software Upgrading" progress bar appears.
: Do not power off the TV during this process. It will automatically restart once finished.
: 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 Plug the TV back in while continuing to
: Combine all .rar parts and extract the binary file (usually named CtvUpgrade.bin or allupgrade_338_4G_1G.bin ).
If your TV is stuck on the logo or experiencing software glitches, follow this general procedure: : Sites like LEDTVSOFTWARES
: 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.
: Channels like Kazmi Elecom are popular sources for specific CV338H firmware dumps. Flash Firmware : Power off the TV and unplug it
: 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.