Download 35018484 3840x2160 Nikai Uhd55sled3d Part1 Rar -
Use a utility like WinRAR or 7-Zip to extract part1.rar . This will automatically combine all parts into a single folder containing a .bin or .img file.
The TV should detect the file and begin a software installation or upgrade process. Download 35018484 3840x2160 Nikai UHD55SLED3D part1 rar
Format a USB flash drive (8GB or smaller is recommended) to FAT32 . Use a utility like WinRAR or 7-Zip to extract part1