firmware is available on Up-4ever . This model is a 55-inch Android Smart 4K LED TV.
: Place the extracted firmware file directly into the root directory of the USB drive (do not put it in a folder). Flash the TV : Power off the TV and unplug it. Insert the USB drive into the TV's USB port. Download TCL L55C2US Firmware part04 rar
: Go to Settings > Device Preferences > About > System Update and select Network Update . firmware is available on Up-4ever
To manually update your TV using a USB drive, follow these steps: Flash the TV : Power off the TV and unplug it
The direct download link for the fourth part of the TCL L55C2US
If your TV is still functional and connected to the internet, you can use these official methods:
The TV will restart automatically once the update is successful.