Some cars do not work with the "Default" USB connection mode.

How to fix

1. Install the companion app (

2. Make sure that the adapter is synced with a companion app

3. Companion app -> Troubleshooting -> Auto USB mode detect -> Turn on

4. Check if the Carsifi adapter works

5. If the adapter still not working try to select each USB modes manually and test with your car

   - Default

   - Accessory

   - Direct Accessory