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Updating firmware is risky and should only be done if your TV is stuck on the logo, restarting, or has software bugs.
Ensure the panel number (e.g., HV430QUB) matches your TV exactly. Installing the wrong software can result in an upside-down picture or no display. FAT32 Format: Your USB drive must be formatted to FAT32.
HV430QUB-N4E or HV430QUB-N1A (depending on the specific version)