Introduction
This document describes the procedure and precautions for upgrading the CD/USB receiver firmware.
- If an error occurs while updating the firmware, the CD/USB receiver may become unusable. Be sure to read the following procedure and precautions carefully before updating.
- For basic operations of the CD/USB receiver, refer to the appropriate instruction manual for your model.
Target Model and Firmware Version
The updater can be used for the firmware versions of the models shown below.
| Target models | Target firmware versions → Updated versions | Updater file name (size) |
|---|---|---|
| KDC-1030U, KDC-120UB, KDC-120UG, KDC-120UR, KDC-152R, KDC-MP172U, RDT-201, U330L, U330W | Ver V105 or earlier → V106 | te1713k.krm (1.90 MB) |
| KDC-120U, KDC-153UM, KDC-172Y, KDC-220UI | Ver V105 or earlier → V106 | te1701k.krm (1.90 MB) |
| KMM-104, KMM-104AY, KMM-104GY, KMM-104RY, KMM-122, KMM-204, U330MS | Ver V105 or earlier → V106 | ml1744k.krm (1.90 MB) |
| KMM-124 | Ver V105 or earlier → V106 | ml1749e.krm (1.90 MB) |
| KDC-BT22, KDC-BT272U, KDC-BT520U, KDC-MP372BT, KMM-BT204, KMM-BT222U, KMM-BT240U, U330BT | Ver V121 or earlier → V122 | te1707k.krm (7.10 MB) |
| DPX-5100BT, DPX-M3100BT, DPX-U740BT, DPX303MBT, DPX503BT, DPX523BT, DPX540BT, DPX593BT, KDC-320UI, KDC-320UIM, KDC-BT32, KDC-BT340U, KDC-BT372U, KDC-BT620U, KDC-X302, KMM-304Y, KMM-BT304, KMM-BT322, KMM-BT322U, KMR-D372BT, KMR-M322BT, KMR-U371BT, U370BT | Ver V129 or earlier → V130 | te1706k.krm (7.10 MB) |
| DPX-7100DAB | Ver V113 or earlier → V114 | te1720e.krm (6.90 MB) |
| KMM-BT504DAB | Ver V113 or earlier → V114 | te1720e.krm (6.90 MB) |
| KDC-BT720DAB | Ver V113 or earlier → V114 | te1720e.krm (6.90 MB) |
| DPX793BH | Ver V107 or earlier → V108 | te1747k.krm (6.90 MB) |
| KMM-BT522HD | Ver V107 or earlier → V108 | te1747k.krm (6.90 MB) |
| KDC-BT572U, KDC-X502, KDC-X5200BT, KDC-X5200BTM, KMR-D772BT | Ver V114 or earlier → V115 | te1730.krm (6.90 MB) |
| KDC-X7200DAB | Ver V107 or earlier → V108 | te1736e.krm (6.90 MB) |
| KDC-BT772HD, KDC-X702 | Ver V108 or earlier → V109 | te1734k.krm (6.90 MB) |
For how to check your firmware version, refer to “Checking the Firmware Version”.
Creating the Update Media
Create the update media on your PC.
- Download the appropriate updater for the model and firmware version to update.
- Copy the updater to the top of hierarchy in USB memory.
💬 Note: You can also copy the updater to a device containing audio files and update the firmware from it.
- Update cannot be performed if it is copied inside a folder.
- If the updater file name is changed, update cannot be performed.
Checking the Firmware Version
- Press the [SRC] button and select “STANDBY” (standby state).
- Press the [VOL] knob to enter the function mode. “FUNCTION”/“DISPLAY” is displayed.
- Turn the [VOL] knob to display “SYSTEM”, and press the [VOL] knob.
- Turn the [VOL] knob to display “F/W UPDATE”, and press the [VOL] knob.
- Turn the [VOL] knob to display “UPDATE SYSTEM”, and press the [VOL] knob. Current firmware version is displayed.
Firmware Update Procedure
- Connect the updater media to the CD/USB receiver.
- When an audio file is played or “NO MUSIC” is displayed, press the [SRC] button and select “STANDBY” (standby state).
- Press the [VOL] knob to enter the function mode. “FUNCTION”/“DISPLAY” is displayed.
- Turn the [VOL] knob to display “SYSTEM”, and press the [VOL] knob.
- Turn the [VOL] knob to display “F/W UPDATE”, and press the [VOL] knob.
- Turn the [VOL] knob to display “UPDATE SYSTEM”, and press the [VOL] knob.
- Press the [VOL] knob again. “FILE CHECK” is displayed.
- Turn the [VOL] knob to display “YES”, and press the [VOL] knob. Update starts with “UPDATING” displayed. Update should finish in approximately 3 minutes and “COMPLETED” is displayed upon completion.
- The receiver reboots automatically. Update on the firmware takes effect.
- Check that the firmware version is updated, by referring to “Checking the Firmware Version”.
💬 When “NO FILE” is displayed
- Check if the updater is on the top of hierarchy.
- Check if the updater file name is appropriate for the model to update.
💬 If “WAIT” is displayed more than 5 minutes, you may fail the firmware update. In this case, check the following items:
- Pull out the USB memory and insert it again.
- Check if your USB memory has security function. If so use the one without security function.
- Your USB memory may have problem. Update with another USB memory.
- The firmware is not downloaded and copied to the USB memory successfully. Download and copy it again.
Precautions
- Be sure to park the vehicle in a safe place before updating. Keep the engine running in order to prevent battery from running out.
- Do not turn off the engine or CD/USB receiver power while updating. Update cannot be performed correctly and the CD/USB receiver may become unusable.
Work Flow
- Download the firmware files, and copy them to USB memory.
- Update the firmware. (It takes about 3 minutes.) Reset the CD/USB receiver.
- Check that the firmware has been updated.
