What does 'USB HUB IS NOT SUPPORTED' mean on my JVC Receiver?
- MMichelle BlackwellSep 4, 2025
This message indicates that the unit does not support a USB device connected via a USB hub.
What does 'USB HUB IS NOT SUPPORTED' mean on my JVC Receiver?
This message indicates that the unit does not support a USB device connected via a USB hub.
What does 'UNRESPONSIVE DEVICE' mean on my JVC Receiver?
This message indicates that the connected device is not responding. Make sure the device is not malfunctioning and reattach the device.
How to fix poor phone sound quality on my JVC KD-X441DBT?
If the phone sound quality is poor, try reducing the distance between the unit and the Bluetooth device. You might also try moving the car to a location with better signal reception.
Why does my JVC KD-X441DBT Receiver say 'PLEASE WAIT'?
The unit displays "PLEASE WAIT" because it is preparing to use the Bluetooth function. If the message persists, turn the unit off and then on, and reconnect the device.
Why is the connected Bluetooth audio player not controlled by my JVC KD-X441DBT?
If you cannot control the connected Bluetooth audio player, verify that the player supports Audio/Video Remote Control Profile (AVRCP). Also, try disconnecting and reconnecting the Bluetooth player.
What does 'NO DEVICE' or 'READING' mean on my JVC KD-X441DBT?
If you see "NO DEVICE" or "READING" keeps flashing, try these steps: * Switch off the developer options on the Android device. * Reconnect the Android device.
What does 'CANNOT PLAY' mean on my JVC KD-X441DBT?
This message indicates that the JVC Receiver cannot play the content from the connected USB device. Ensure that the USB device contains playable audio files.
What does 'UNSUPPORTED DEVICE' mean on my JVC KD-X441DBT Receiver?
This message indicates that the connected device may not be compatible with the unit. Check whether the connected device is compatible with this unit and ensure the file systems are in supported formats. You can also try reattaching the device.
How to improve poor radio reception on my JVC Receiver?
To improve radio reception, ensure the antenna is connected firmly.
Why is the sound being interrupted during Bluetooth playback on my JVC Receiver?
If the sound is interrupted during Bluetooth playback, try these steps: * Reduce the distance between the unit and the Bluetooth audio player. * Turn off, then turn on the unit and try to connect again. * Consider that other Bluetooth devices might be trying to connect to the unit.
Key information on safe usage, warnings, cautions, and manual care.
Instructions for turning power on/off, adjusting volume, selecting sources, and changing display information.
Guide to setting key beep, source selection, firmware updates, and factory reset.
Steps for connecting the DAB antenna, selecting DAB, and updating the service list.
Instructions for connecting compatible mobile devices via USB.
How to play, pause, repeat, and randomize tracks from USB sources.
Choosing control mode for iPod (Head/iPhone) and Android (Auto/Audio).
Steps to pair a Bluetooth device for the first time, including passkey confirmation.
Procedures for answering, rejecting, and ending incoming and ongoing calls.
Handling multiple active calls, swapping, and adjusting phone volume during calls.
How to make calls from recent call history, phonebook, dial number, or voice commands.
How to select and connect to Bluetooth audio devices for music playback.
Sets speaker delay times for optimal sound environment based on vehicle and listening position.
Solutions for sound issues, wiring errors, protection modes, and general system problems.
Addressing problems with DAB reception, analog radio connectivity, and static noise.
Resolving issues with unsupported devices, loading errors, and playback problems.
Addressing pairing failures, sound interruption, and echo/noise issues.
Crucial safety warnings and basic steps for installing the unit in a vehicle.