Never install firmware from a random source. Installing "touch-only" firmware on a unit with a volume knob can break the system. Always verify your app version and kernel version in settings before downloading. How to Update Your 8227L Firmware Method 1: Local USB Update (Recommended)
Many 8227L units are advertised as running "Android 12" or "Android 13," but internally they often use Android 8.1 or Android 9 with a skin to look like a newer version. Android Auto Firmware Latest Update 8227l
This is the most reliable way to refresh the entire operating system. Never install firmware from a random source
Download the latest ZLink or Android Auto APK from a trusted site like APKMirror and install it via the head unit's file manager. Junsun 8227L Android CarNavi firmware update How to Update Your 8227L Firmware Method 1:
Users have reported successful updates to versions like 2023-12-27 MCU and corresponding system patches in early 2024.