: Use a tool like WinRAR or 7-Zip to extract the contents. Format USB : Use a FAT32-formatted USB drive.
: Always verify that your TV model matches BM55L71 exactly before flashing, as using the wrong firmware can permanently "brick" the device.
: This is the primary reason users look for these .rar files. It fixes a common issue where the TV's Android OS fails to boot beyond the startup splash screen.
: If apps are crashing or the TV is behaving erratically, a fresh flash of this firmware often resets the system to its optimal factory state. Performance & User Experience