If your TV boots up but the picture is upside down or the colors look like a negative photo, you do not need to reflash the software. You simply need to adjust the settings in the : Press Menu on your remote.
To help you get the exact version you need, could you specify your TV panel's (e.g., 1366x768 or 1920x1080) and the brand name ? Alternatively, Share public link tp.rd8503.pa671 software
Installing the wrong resolution firmware can result in a distorted, flickering image or no image at all. The firmware also controls the board's behavior, including: If your TV boots up but the picture
If your TV does not respond to the USB method, you may need an to flash the 25Q32 Flash IC chip directly. tp.rd8503.pa671 software