Ensure your TV is indeed the 3840x2160 (4K) version. Installing 2K firmware on a 4K panel can result in a "No Display" or "Upside Down" screen.
Right-click on Part 01 and select "Extract Here" using a tool like WinRAR or 7-Zip. The software will automatically pull data from all parts, including part 07, to create the final .bin or .img file. Installation Guide for TP.HV553 Motherboards Download HV553 3840x2160 part07 rar
If WinRAR reports a "Checksum error," you can try the "Keep broken files" option in WinRAR settings as a last resort. Ensure your TV is indeed the 3840x2160 (4K) version
How to Download and Install HV553 3840x2160 Part 07 Firmware including part 07