Extract the content using a tool like WinRAR or 7-Zip. You are looking for a single file ending in .pkg or .bin .

Downloading a ".rar" file for the Hisense 50N3000UW typically refers to obtaining a compressed firmware package used to update or repair the TV's operating system. Because this is an older 4K Smart model, you often need to install updates manually via USB if the Over-The-Air (OTA) update fails.

Use a USB drive (preferably 4GB–16GB) formatted to FAT32 .

You should avoid third-party "rar" sites that may host malicious files. Instead, use official or trusted technician sources: