What does “UNRESPONSIVE DEVICE” mean on my JVC KD-SX25BT Car Video System?
- Mmike80Sep 4, 2025
If your JVC Car Video System displays “UNRESPONSIVE DEVICE”, make sure the USB device is not malfunctioning and reattach the USB device.

What does “UNRESPONSIVE DEVICE” mean on my JVC KD-SX25BT Car Video System?
If your JVC Car Video System displays “UNRESPONSIVE DEVICE”, make sure the USB device is not malfunctioning and reattach the USB device.
Why does my JVC KD-SX25BT Car Video System display “USB HUB IS NOT SUPPORTED”?
Your JVC Car Video System displays “USB HUB IS NOT SUPPORTED” because it cannot support a USB device connected via a USB hub.
Why does my JVC KD-SX25BT display “LOADING” when I enter search mode?
If your JVC Car Video System displays “LOADING” when you enter search mode, the unit is still preparing the iPod/iPhone music list. Allow some time to load and try again later.
What does “PROTECTING SEND SERVICE” mean on my JVC KD-SX25BT Car Video System?
If your JVC Car Video System displays “PROTECTING SEND SERVICE”, send the unit to the nearest service center.
Why is the playback order not as intended on my JVC Car Video System?
The playback order on your JVC Car Video System is determined by the file name (USB).
Why are correct characters not displayed on my JVC KD-SX25BT?
Your JVC Car Video System can only display uppercase letters, numbers, and a limited number of symbols. Depending on the display language selected, some characters may not be displayed correctly.
| Brand | JVC |
|---|---|
| Model | KD-SX25BT |
| Category | Car Video System |
| Language | English |
Model names of the digital media receivers covered in the manual.
Manufacturer's declaration of compliance with FCC rules.
Safety advice regarding RF exposure limits.
Regulatory compliance statement for IFT.
Grants a non-exclusive license to use the software within the user's country.
Defines user rights and restrictions regarding the licensed software.
Outlines conditions for transferring the license and prohibits reverse engineering.
Safety warning about driving distraction and battery ingestion.
Cautions on volume setting, external device use, data backup, and short circuits.
Steps to set the current time and date, including clock format.
Configuration of system settings like key beep and source selection.
Procedures for automatically or manually searching for radio stations.
How to connect devices and start audio playback from USB, iPod, or Android.
Steps to create new Pandora stations based on artist/track and store them.
Instructions for searching for and saving iHeartRadio stations.
Initial steps to set up and start listening to SiriusXM Radio.
Supported Bluetooth profiles and codecs for device connectivity.
Adjustments for microphone gain, noise reduction, and echo cancellation.
Ways to initiate a call from call history, phonebook, or direct dialing.
Checking the connectivity and compatibility of Bluetooth profiles.
How to connect and play audio via Bluetooth.
Configuring the unit to use the JVC Remote app with iOS or Android devices.
Listening to Pandora, iHeartRadio, and Spotify via Bluetooth.
Steps to connect a portable player and play audio via AUX.
Select preset equalizers or adjust custom sound settings.
Adjusting individual sound settings like Sub.W, Bass, Mid, and Treble.
Fine-tuning equalizer bands (62.5Hz to 16kHz) and quality factor.
Setting up 2-way and 3-way crossover filters for speakers.
Adjusting crossover frequency and slope for speakers.
Digital Time Alignment settings for speaker delay and gain.
Configuring speaker output via lineout terminals or speaker leads.
Detailed guide on setting speaker delay and gain for optimal sound staging.
Troubleshooting common issues like no sound or unit not working.
Troubleshooting poor radio reception or static noise.
Troubleshooting issues related to USB/iPod playback and device detection.
Troubleshooting issues specific to Android device connectivity and playback.
Troubleshooting common Bluetooth connection and playback problems.
Troubleshooting common Pandora app issues.
Troubleshooting common iHeartRadio app issues.
Troubleshooting common Spotify app issues.
Solutions for audio interruptions during Bluetooth playback.
Troubleshooting issues related to SiriusXM service and reception.
Troubleshooting Bluetooth connection instability and device detection.
Crucial safety warnings for unit installation and wiring.
Step-by-step guide for the basic installation process.
Detailed instructions for in-dash mounting the unit.
Instructions for installing the unit without a mounting sleeve.
How to connect the microphone and SiriusXM tuner.
Diagram and explanation of wiring connections for the unit.
Wiring guide for connecting external amplifiers to output terminals.
Technical specifications for USB connectivity and file playback.
Technical specifications for Bluetooth connectivity and profiles.
Technical specifications for audio output, power, and impedance.
Overview of the unit's faceplate controls and features like USB/Aux input.
Select preset equalizers or adjust your own sound settings.
Sets your preferred audio settings.
Step-by-step guide to pairing a Bluetooth device with the unit.
Operating the audio player for Bluetooth audio streaming.
Warranty terms and conditions for JVC products sold in Canada.
Procedures for obtaining warranty service and required documentation.
Canadian warranty terms and conditions, including exclusions.
Warning against opening the cabinet to prevent electrical shock.
Instructions for returning products for warranty service.
Loading...