Once you have downloaded a legitimate firmware file (usually between 600MB and 1.2GB), you will need a Windows PC, a USB A-to-A cable (male to male), and the PhoenixSuit or LiveSuit software.
Before searching for a download link, you must understand the hardware inside your dashboard. zq8003 android update link
The ZQ8003 is a system-on-chip (SoC) manufactured by Allwinner, a Chinese semiconductor company. It is a member of the ARM Cortex-A7 family. It was designed specifically for entry-level to mid-range Android car head units. Once you have downloaded a legitimate firmware file
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. It is a member of the ARM Cortex-A7 family