place the file inside any folders, and do not rename it unless specifically instructed by the firmware release notes. Step-by-Step Installation Guide (USB Method)
Your TV flashing a blinking light, stuck on the boot logo, or refusing to turn on usually means a corrupted mainboard firmware. For televisions using the chassis board—commonly found in TCL, Thomson, and RCA smart TVs—a USB firmware flash is the most effective DIY repair. 40-mt56s1-mae2lg Firmware
The system boots up completely but freezes on the home screen or during the initial setup wizard, ignoring user inputs. place the file inside any folders, and do
This is often a software issue. Try performing a USB firmware update as described. place the file inside any folders