Copy the extracted .bin file (usually named allupgrade_ms3663_pc821.bin or similar) directly to the of the USB. Flash the TV: Turn off the TV and unplug the power cord. Insert the USB drive into the TV's USB port.
Once the blinking stops or the TV restarts, the process is complete. Remove the USB drive before the TV tries to boot again. Troubleshooting Download MS3663 PC821 1920x1080 Cristor Dump rar
The standby LED should start blinking rapidly, indicating the update is in progress. Do not turn off power while the LED is blinking. Copy the extracted