Connect the USB drive to the USB port on the T.VST29.03 board.
Stock firmware often uses 4:2:0 subsampling. Modified firmware can force 4:4:4 at lower resolutions (e.g., 720p@60fps) for lossless screen capture. tvst2903 firmware upgrade
You must ensure the firmware matches your specific LCD panel resolution and voltage (3.3V, 5V, or 12V) to avoid damaging the hardware. Step-by-Step Firmware Upgrade Guide There are two primary methods to upgrade the T.VST29.03 Connect the USB drive to the USB port on the T