The firmware must match the screen panel ID (e.g., V400HJ6-PE1). Using incorrect firmware can cause a reversed image or no display at all.

: Release the button once you see a blinking LED on the sensor or an "Updating" progress bar on the screen. Do not power off the TV during this process, as it can permanently damage the mainboard.

If you already have a specific firmware file and want a review of that file , check its SHA256 hash against any known official source – otherwise assume it's unsafe.

First, let’s break down the identifier:

Look for the Project ID or Chassis Name (like MS801) on the back of the TV.

Comprehensive Guide to : Flashing, Repair, and Troubleshooting

: The TV repeatedly restarts or fails to move past the initial TCL logo.

: If your TV can reach the home screen, you can attempt an official update by navigating to Settings > System Update > Network Update .

Release the power button and let the update run. during this phase, as doing so will permanently brick the eMMC chip.