When the TV is completely dead, stuck on a logo, or displaying a black screen, the BIOS/Flash memory chip must be programmed externally.
: To fine-tune display settings, mirror mapping, or color balances after a flash, press Menu + 2580 or Input + 2580 on the remote control to open the service mode. P45-53v3.1 Software
Once the blinking stops, remove the USB drive and restart the TV. 2. Programmer Flashing (For Bricked or Boot-Looping TVs) When the TV is completely dead, stuck on