Firmware Updates

Operation

Playback Control

Car Receivers have four basic commands, Play/ Pause/ Forward skip/ previous skip with USB connected.
The Android device will start default media player app to handle the play back control key.
This behavior is the same as the Bluetooth Audio send playback control key command.

Feature		Comment
Key	/	Each application may handle each command differently
Key		Each application may handle each command differently

How to Start Playback Music file with Your Android Device

Connect your Android device to the USB input terminal on Head Unit via Micro USB 2.0 cable.
Head Unit will changes to ANDROID source automatically and then playback starts.

To pause or resume playback, press the volume knob (or press on RM-RK52*).
To select a track, press / (or press / on RM-RK52*).

* Remote unit, Depends on model

Troubleshooting

Head Unit shows “CANNOT PLAY” or continues to flash “READING”

Make sure a compatible Android device (OS Version 4.1 and above) is connected and check the Micro USB 2.0 cable connections.
Try to reattach the Android device.
Try to reboot or restart your Android.

Head Unit shows “AUDIO MODE” and no sound during playback.

Launch any media player app on Android device and press play.
Try to reattach the Android device.
Kill the current playback media player app and re-launch the same app or others media player app.
Make sure the volume on the Android device is turnned up and not on Mute.

Head Unit shows “AUDIO MODE” and the sound only output from Android device during playback.

Try to reattach the Android device.
Try to reboot or restart your Android.
If Android device still continues the same condition, this type or model of Android device may have an audio routing problem.

Android Music Playback via USB