: This indicates a split archive . Large firmware files are often broken into smaller chunks (Part 1, Part 2, etc.) to make them easier to upload and download on file-sharing forums. The "Why": The Quest for the Flash

: These are the identifiers for the mainboard chipset . Specifically, "638V6" often refers to the MSD6A638 processor, a common engine for mid-range smart TVs.

: Apps stop working, or the settings menu becomes inaccessible.

: Likely refers to the regional software profile . Firmware is often localized for specific markets (like Palestine or the Middle East) to include local languages, tuner settings, and pre-installed apps.