If you encounter errors during installation, you may need a programmer like the RT809H to flash the EMMC directly. How to download TP.HV530.PC821 SOFTWARE AVAILABLE
Power on the TV; the software update should begin automatically. Download HV530 PC821 3840x2160 REF36 part01 rar
Extract the files to the root of a FAT32-formatted USB drive. Insert the USB into the TV's port while it is off. If you encounter errors during installation, you may
This specific file string refers to the for the TP.HV530.PC821 motherboard If you encounter errors during installation
Download all parts of the archive (ensure you have part01.rar , etc.).