The indicator light should start blinking, showing the update is in progress. until it completes.

: A popular repository for LCD/LED smart TV firmware where you can find various builds for the CV628H-B42 board

If your TV is stuck on the logo or hanging, you must update the software using a USB drive.

: Place the extracted firmware file (e.g., allbackup.bin or ctvupdate.bin ) directly into the root directory of the USB—do not put it inside a folder. Update via USB : Power off the TV. Insert the USB drive into the TV's USB port.