Use a USB drive (preferably 4GB–16GB) formatted to FAT32 .
Extract the content using a tool like WinRAR or 7-Zip. You are looking for a single file ending in .pkg or .bin . Download Hisense 50N3000UW rar
There are two main ways to trigger the update once the USB is plugged into the : Method A: Through the Menu (If TV turns on) Updating Your TV via USB | PDF - Scribd Use a USB drive (preferably 4GB–16GB) formatted to FAT32