Power on the board. A light on the keypad or board will typically begin flashing (often red and green or rapidly blinking red).
Files specifically tuned for 1366x768 screens. Boot Logo: Assets to display the Sony logo upon startup. Firmware Installation Process Download RD8503 Sony 1366x768 rar
The "1366x768" in your query refers to the specific display resolution of the panel the firmware is intended for. Power on the board
While these are "China boards," users often download firmware that includes a Sony boot logo to mimic the look of a Sony television. Key Components of the Download Download RD8503 Sony 1366x768 rar
Once the light stops flashing or stays solid, the update is finished. You must power off the board before removing the USB drive. Technical Warnings