Navigate to (or System Upgrade ). Select Local Upgrade .

: Updating with the wrong firmware can permanently "brick" your head unit. Verify your current build number in Settings > System > About .

: Access XYGALA using the username xyauto and password 123456 . Look for folders containing "YT9217B" and "Android 10" .

: Some head units require a specific folder structure to detect the update. Create a path: mnt/media_rw/udisk/update.zip . Alternatively, placing the files directly in the root directory often works. 3. Initiate the Update Process Plug the USB drive into the head unit's USB port .