If your device uses an RTD2831 chip, firmware updates would come from the , not Realtek directly.
This board is often paired with UHD (4K) or Full HD panels and serves as the "brain" for budget-friendly smart TV models. Common TV Brands: Bravis (e.g., ), Kvision ( ), HQSTV ( ), and Werth ( Form Factor: hktrt2831p738 firmware