The English language fails you here. The largest library of Chinese head unit firmware lives on (use Google Translate). Navigate to: 4pda.to > Forum > Navigation & Car Electronics > Chinese Car Head Units > Allwinner ZQ8003 Search the thread for your MCU number.
Look for a toggle for or ZLink and ensure it is enabled, then save and reboot. zq8003 android update link
Disclaimer: The ZQ8003 is a generic Android car stereo system produced by various OEM manufacturers. Links change frequently due to server updates. Always back up your existing firmware before flashing. The English language fails you here
Many sellers lie on their listings. A ZQ8003 chip was originally designed for Android 10. If you see "Android 13" on your box, it is likely a build.prop hack. The actual API level is still 29 (Android 10). Updating will not change the underlying kernel. Look for a toggle for or ZLink and