It should start blinking rapidly (red and blue, or just flashing red). This means it is reading and installing the software. during this process.

Format the USB drive to FAT32 on your computer. 📥 Step 2: Finding and Downloading the File

Never run an .exe file if you are looking for a firmware package. The download should strictly contain data files (like a .bin file) inside the .rar archive. 🗜️ Step 3: Extracting the Firmware Once the .rar file is downloaded to your computer:

Once the blinking stops and stays a solid color (or the screen turns on), the process is complete.

Use highly specific search strings to find the file: "RD85" "1440x900" firmware download "RD85.301" USB update file rar

Follow this general procedure to update your universal controller board: the TV or controller board completely. Insert the USB flash drive into the USB port on the board. Power on the board. Watch the indicator LED light: