the firmware file ( .bin ) directly to the root directory of the USB. Plug the USB into the TV's port while the power is off.
The verified free version you download from community sources is legal as long as you do not modify or sell it. tr8303c v7 software download verified free
Since the TR8303C is a universal board, official "manufacturer" websites are rare. Instead, verified firmware is typically hosted on reputable electronics repair forums and community-driven sites: the firmware file (