You can typically find this firmware through enthusiast communities and technical archives:
: Plug the USB into the powered-off board, then power it on; the LED usually blinks during the update process. Download T53L13 1024X768 CHINA rar
universal LCD/LED TV controller driver board. This specific version is configured for a resolution. You can typically find this firmware through enthusiast
host these .rar files for various resolutions including 1024x768. : YouTube tutorials for the then power it on