Use a 4GB or 8GB USB 2.0 drive formatted to FAT32 .
Once the blinking stops or the light stays solid, the process is complete. Download RD8503 General 1680x1050 rar
If your image is upside down after installation, you need to enter the Service Menu to toggle the "Mirror" setting. Common service codes for RD8503 include Menu + 1147 or Input + 2580 . Use a 4GB or 8GB USB 2
Below is a guide on how to handle the file and get your TV back in working order. Why Do You Need the 1680x1050 Firmware? Download RD8503 General 1680x1050 rar