ZENEC Z-E3776 - Connection Diagrams; 16-Pin Device Connector; ISO Harness Connectors; Specialized Cable Connections

Android Auto Setup
9
Troubleshooting information
Android Auto can’t connect to head unit. Please check the following information.
Make sure your head unit is Z-E3776 make by ZENEC.
Try to disconnect and connect to the head unit.
Try to restart the head unit.
Try to exchange the USB cable.
Try to disconnect and connect Bluetooth.
Try to turn off and then turn on the mobile device Bluetooth and Wi-Fi.