You can find the discussion thread and download links (registration required) at .
If you are downloading parts (part01, part02, etc.), you must have all parts in the same folder and extract only the first one to get the full .pkg file. Download MT56552 LF1V105 part09 rar
Finding a specific "part09" of a multi-part RAR archive usually indicates that the firmware was split for uploading to a community forum. These files are most commonly hosted on the , which is the primary source for this specific TCL firmware. Where to Download You can find the discussion thread and download
Copy the extracted .pkg file to a FAT32-formatted USB drive, insert it into the TV while it's off, then hold the Power button on the TV (not the remote) until the update screen appears. Download MT56552 LF1V105 part09 rar