To verify if your unit is running the original factory software or to check the Bluetooth module version, follow these steps: Firmware Updates | Car Electronics - KENWOOD
The Kenwood KDC-MP438U Go to product viewer dialog for this item. Kenwood Kdc Mp438U Firmware
Update files and procedures for the Bluetooth module can be found on Kenwood’s Bluetooth Support Page . Checking Your Current Version To verify if your unit is running the
is a legacy CD receiver released around 2008. Currently, there are available for this specific model on Kenwood’s primary support portal , as it predates the era of frequent over-the-air or USB-based system software maintenance common in modern head units. Bluetooth Module Firmware While the main system firmware is static, the KDC-MP438U Kenwood Kdc Mp438U Firmware