Use a tool like WinRAR or 7-Zip to extract "part1.rar." This will automatically pull data from other parts to create a single file, usually named Update.img or SW BIN .
Finding the firmware for older TV models like the TCL LED40S4900 Go to product viewer dialog for this item.
often involves using specific ".rar" files shared in the community when official TCL Support channels no longer host them.
A USB flash drive (8GB or larger) formatted to FAT32 . How to Update Your TCL LED40S4900 Go to product viewer dialog for this item. There are two primary ways to update your system: Method 1: Manual USB Update (For .rar Files)