The "Android Head Units" sub-forum is the gold standard for finding firmware and custom ROMs.
Copy the firmware files to the root directory of your USB drive. Do not put them in a folder. yt9260ver11 firmware free
Because these units are manufactured by various factories (GongYue, XYAuto, etc.), there isn't one "official" website. However, several community-driven hubs host these files for free: The "Android Head Units" sub-forum is the gold
If it hangs on the logo for more than 15 minutes, the firmware might be a mismatch or the file was corrupted during download. Final Thoughts there isn't one "official" website. However