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
Addressing common problems such as system freezing, incorrect clock syncing (+3 offset issues), and unresponsive USB ports. How to Perform the Update Android Auto Firmware Latest Update 8227l
Some versions include a refreshed UI with updated launchers and improved system performance. Download the latest ZLink or Android Auto APK