These files are typically written to the motherboard using specialized hardware programmers (like the RT809H) or software tools like HiTool via the TV's debug port. Repair Scenarios
In TV repair, an is a direct dump of the TV's internal memory chips. Technicians use these files when a standard USB update fails or the TV cannot boot into its operating system.
The need for "part07" of this specific backup usually indicates a technician is performing one of the following: