A common complaint on 8227L units is that Bluetooth volume is too low or static-heavy. The new firmware updates the Bluetooth stack, offering:
In the Zlink app, change the video resolution from 1080p down to 720p . Given the small physical screen sizes of car displays, you will not notice a drop in clarity, but it drastically reduces the processing strain on the quad-core 8227L chip. Android Auto Firmware Latest Update 8227l
Updating to the latest stable firmware build yields significant UI enhancements and system fixes: A common complaint on 8227L units is that