Note: If you are using a Mac, ensure you delete any hidden resource files (starting with ._ ) after copying, as they can interfere with the flashing process.

Once finished, the board may restart or the indicator light will stabilize.

Turn on the power. An LED light sequence on the board or its connected keypad will indicate that flashing has begun.

Insert the USB drive into the board's USB port.

A typically means the process is nearly complete.

Use a tool like WinRAR or 7-Zip to extract the .rar archive. Look for a folder specifically labeled for your resolution ( 1920x1080 ) and your keyboard configuration ( 5-key or 7-key ).