Verify your panel details. Locate and flash an alternative firmware profile matching your exact resolution (
Once the flashing finishes, power down the device, remove the USB drive, and restart. If the board enters standby mode (common with universal mainboards), use the remote control or the power button on the TV's keypad to wake it. Ds.v56rj.bk Firmware
The firmware resolution or channel configuration is incorrect. Verify your panel details