For most users, in the traditional sense. These projectors use simple "SoC" (System on Chip) boards that are rarely designed for user-side software upgrades.
18;write_to_target_document7;default0;a1;0;a1;18;write_to_target_document1b;_pc_saYTqJeGfseMP8fXL4QI_100;57; 0;a6a;0;5d1; 0;11c5;0;243e; yg300 firmware link