The "1440 900" in your search refers to a 1440x900 resolution, common for 19-inch widescreen monitors. Installing the wrong resolution firmware can lead to a distorted display or a "No Signal" error.
Groups like lcd tv led tv smart tv software host specific files like T.R85.031 v.09 1440x900.rar . Download R85 031 1440 900 zip
Unzip the downloaded file. Look for a file ending in .bin (e.g., RDA8503.bin ). The "1440 900" in your search refers to
Once you have the .zip or .rar file, follow these steps to update the firmware: Unzip the downloaded file
Place the .bin file directly in the main directory (root) of the USB drive. Do not put it in a folder. Flash Firmware: Disconnect power from the TV board. Insert the USB drive into the board's USB port.
Always backup your original BIOS/firmware if possible before flashing new software.