until the TV restarts or the light stops blinking.

: Use a USB drive (ideally 4GB–16GB) and format it to FAT32 .

The standby light should start blinking rapidly, indicating the software update is in progress.

: Ensure the resolution (1366x768) matches your TV panel exactly. Using firmware for a different resolution (like 1920x1080) may result in a distorted or blank display.

: Look for the CV338H-A42 firmware on specialized LED TV software repositories like Lab One Inside or Kazmi Elecom.

Since the firmware is split into multiple parts (e.g., part1, part2, and ), you must download all parts for the extraction to work. Missing one part will result in an "Archive Corrupt" error.