MAZDA FIRMWARE UPDATE 74.00.324A (NORTH AMERICA – USA, CANADA, MEXICO, etc, 2014-2021 Models)

The most recent, and final update at this time is 74.00.324A. This firmware version/format (.up) will not be installed on new Mazdas (2022 and above). You must use the correct region for your Mazda, as detailed below.
74.00.324A NA for USA, CANADA, MEXICO, SOUTH AMERICA and more.

APPLICABLE MODEL(S):
2014-2018 Mazda3
2016-2021 Mazda2
2016-2021 Mazda6
2016-2021 CX-3
2016-2021 CX-5
2016-2021 CX-9
2016-2021 MX-5

READ CAREFULLY BEFORE INSTALLING (INSTALLATION INSTRUCTIONS ARE AT THE BOTTOM OF THIS PAGE):

IF YOUR MAZDA HAS FIRMWARE VERSION ON or BELOW
55.00.600 NA N for North America, or,
THEN YOU MUST UPDATE with Version Number 70.00.100A First!.
THIS IS A TWO (2) FILE INSTALLATION FOR YOUR REGION or COUNTRY. THEY ARE SOLD IN THIS SITE AS WELL.

70.00.100A-FAILSAFE.UP (First)
Then next Install (one after the other do not remove the USB Flash Drive).
70.00.100A-REINSTALL.UP (Last)

For North America or NA N the Version change point is 55.00.650 NA N, or Again anything NEWER like, 55.00.753, 56.00.750, 58.00.100, 59.00.770 or 70.00.021

You go straight for the latest firmware update to 74.00.324A NA N.

Warning…!!!
DO NOT TURN OFF/ON or START ENGINE BETWEEN THIS
TWO FILE UPDATE, you INSTALL ONE after THE OTHER
DO NOT REMOVE USB FLASH DRIVE.

AFTER INSTALL use YOUR ”CONNECT” in CAR FOR A FEW MINUTES, THEN SHUTDOWN CAR FOR THE LAST FINAL VERSION TO INSTALL.

Next you MUST do final and last below…..
———————————————————-

IF YOUR MAZDA HAS .up FIRMWARE VERSION ON or ABOVE
55.00.650A (NA N) or the 56.00.100A (EU N or 4A N) or 58.00.310A
or Any 59.00.502A or 59.00.650A,

or Any 70’s Firmware like 70.00.021A, 70.00.100A or 70.00.110 or
70.00.150A or 70.00.335C or 70.00.367A or 74.00.230A or 74.00.311A
THEN YES YOU CAN UPDATE Directly to 74.00.324A for LATEST FIRMWARE.

This is now a SINGLE FILE (1) ONLY INSTALLATION for
YOUR REGION or COUNTRY,

MUST USE EITHER ONE of…

NA N_74.00.324A-UPDATE.UP (North America ONLY)
or
EU N_74.00.324A -UPDATE.UP (Europe/UK)
or
4A N_74.00.324A-UPDATE.UP (ADR, AU. NZ, ME, Asia) (74.00.324A 4A N (ADR) is not yet available)

THIS IS THE LATEST GENUINE FIRMWARE CURRENTLY AVAILABLE
FROM MAZDA JAPAN As Of JULY 30th, 2025.

———————————————————————————–

ALL 7x.00.xxxx FIRMWARE INCLUDES the Software for
CAR PLAY + ANDROID-AUTO….But…

For the CP/AA CONVERSION TO ACTUALLY WORK IN YOUR MAZDA
You MUST HAVE THE TWO ”GENUINE MAZDA PARTS” INSTALLED
AFTER any 7X.00.XXXX is installed and or WORKING in YOUR CAR FIRST.

THERE ARE NO SHORT CUTS or OTHER BRAND PARTS…None.

YOU MUST PURCHASE and INSTALL the TWO GENUINE MAZDA PARTS LAST.

DO NOT INSTALL THESE NEW PARTS FIRST or BEFORE ANY 70s FIRMWARE OTHERWISE YOU WILL HAVE TO REMOVE THE NEW PARTS RE-INSTALL THE OLD PARTS AND THEN START AGAIN.

YOU CAN NOT SEPARATE THIS CARPLAY and or ANDROID-AUTO
AS THEY ARE BOTH INSTALLED WITH all 7x.00.xxx FIRMWARE.

CARPLAY and ADROID-AUTO WILL NEVER WORK WITHOUT THE
TWO ”GENUINE MAZDA PARTS” Finally INSTALLED Last…PERIOD.

Installation Requirements

• USB flash drive (FAT32 formatted) – minimum 4 GB
• Access to the Mazda Connect infotainment system
• Good vehicle battery or engine running during installation
• Approximately 15–30 minutes

📥 How to Check Your Current Firmware Version

1. Turn on your vehicle (ACC or ON mode).
2. Press and hold the following three buttons at the same time:
   • Music Note + Favorites + Mute (Volume)
3. The Diagnostic Menu will appear.
4. Navigate to:
   Version Information > Connected Device > CMU
5. Your current software number will be displayed. If it’s lower than 11048, you can safely update.

🛠️ Installation Instructions

⚠️ Please follow all steps carefully. Do not power off the vehicle or remove the USB drive during the process.

Step-by-step Guide:

1. Prepare USB Drive:
   • Format the USB stick using FAT32 format.
   • Copy CMU_7000C0A-NA03_11048.kwi to the root directory (not inside any folders).
2. Insert USB and Start Vehicle:
   • Insert USB into the front USB port.
   • Start the vehicle or place it in ACC mode (ensure stable power supply).
3. Enter Diagnostic Mode:
   • Press and hold: Music Note + Favorites + Mute (Volume) for about 5 seconds.
   • The Diagnostic Test Screen will appear.
4. Start Firmware Update:
   • Navigate to: System Update > Search for Update
   • The system will detect the update file.
   • Confirm to start the update process.
5. Wait for Completion:
   • The process will take 15–30 minutes.
   • Keep the vehicle on and do not remove the USB.
   • System will reboot automatically when done.
6. Confirm Update:
   •  Re-enter the Diagnostic Menu and verify that the software version is the latest