: Move the extracted firmware file (e.g., Update.img ) directly to the root directory of your USB drive (not inside any folders). Flashing the TV : Power off the TV and unplug it from the wall. Insert the USB drive into the TV's USB port.
: Use a USB 2.0 drive formatted to FAT32 . Download MT56552 LF1V339 part02 rar
: Once the progress bar hits 100%, the TV will restart automatically. Do not remove the USB drive until the TV has fully rebooted into the home screen. Finding Official Downloads : Move the extracted firmware file (e
If you are downloading this file for a manual update, follow these steps to ensure a successful flash: : Use a USB 2
: If your TV can still boot, go to Settings > Device Preferences > About > System Update to check for the latest official software over the network.
Installing the wrong firmware version for your specific panel (chassis) can result in a "bricked" TV or a flipped/distorted image. Always verify your chassis number (e.g., MT56552) matches the file exactly. How to Update TCL Tv by USB
Press and hold the on the TV (not the remote) while plugging the TV back in.