Because this specific file (a .rar or .bin dump) is often hosted on community forums or third-party repair sites, you should always try the first to ensure safety: Visit the Philips Support Home Enter in the search box.

: Put the file in the root directory (not inside any folder). Process : Power OFF the TV and unplug it. Insert the USB into the TV's USB port.

: Unzip or unrar the file. Look for a file named upgrade_loader.pkg or a .bin file.