Official support for these "no-name" units is rare. Instead, users rely on repositories from the original board manufacturers or community forums:

is a specialized system update for Android-based car head units built on the YT9260 chipset . This firmware version is typically used to improve system stability, resolve software bugs, and ensure compatibility with newer apps and mobile features like ZLINK for wireless CarPlay or Android Auto. Key Specifications & Compatibility

: While often marketed as Android 9 or 10, these units frequently run on older versions like Android 6.0 to 8.1 Common Components : YT9260-VER1.1. : Quad-core ARM Cortex-A7 (AC8227L). : Commonly supports 1024×600 resolution. How to Find and Update Firmware