For Android app you need to buy OBD-II Bluetooth adapter based on the ELM 327 Comptroller or a compatible one. Please note that Android version of the OBD InCarDoc works with wireless adapters which supports Bluetooth only.
- Plug ELM 327 Bluetooth adapter to the car's OBD-II port, go to the Bluetooth environment at you Android mobile and find the adapter.
- Pair the two devices.
- The secret code of pairing is 1234 or 0000.