Mazda All Models Firmware Update v31.00.100A NA (USA, Canada, Mexico, 2012-2021)

Mazda Connect 1 Firmware Update v31.00.100A NA (USA, Canada, Mexico, Puerto Rico, 2012-2024)

Product Overview

This firmware update (Version 31.00.100A) is a mandatory intermediate update or reinstallation package for the Mazda Connect 1st Generation system. It is a required “stepping stone” for North American vehicles currently running very old software versions.

Important: This firmware is strictly for systems with the main menu layout shown in the photo (7-inch screen with icons in a semi-circle).

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🌍 Regional Compatibility

Region Code: NA (North America) Supported countries include:

• United States (USA)

• Canada

• Mexico

• Puerto Rico

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🚗 Applicable Models

• Mazda 3: 2012–2019

• Mazda 2: 2012–2021*

• Mazda 6: 2012–2021**

• CX-3: 2014–2021

• CX-5: 2012–2021**

• CX-9: 2015–2021*

• MX-5 Miata: 2014–2024*

⚠️ Critical Compatibility Notes:

• Not for System 2: Does not support newer 10.25-inch (26 cm) displays (2022+ models).

• Not for TomTom: NOT compatible with early production CX-5 or Mazda 6 models equipped with TomTom Navigation units.

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✅ Upgrade Path – Read Carefully

If your Mazda is running firmware v30.00.000 or BELOW (e.g., 23.00.000, 25.00.150, 28.00.300, 29.00.100C), you MUST install this version (31.00.100A) FIRST before upgrading to newer versions like v70 or v74.

This is a TWO-FILE Installation:

1. First Install: cmu140_NA_31.00.100A_failsafe.up

2. Then Install: cmu140_NA_31.00.100A_reinstall.up

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📥 Installation Requirements

• USB Drive: 4GB to 16GB (Strictly FAT32 formatted). Do not use drives larger than 16GB.

• Time: Approximately 15–30 minutes.

• Power: Ensure a healthy battery or keep the engine running during the update.

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🛠️ Installation Instructions

Step 1: Preparation

1. Format your USB stick to FAT32.

2. Copy both .up files directly to the root directory (do not place in folders).

3. Crucial: Disconnect all USB devices and remove the Navigation SD card before starting. Re-insert only after the update is finished.

Step 2: Enter Diagnostic Mode

1. Turn vehicle to ACC or ON mode.

2. Press and hold: Music Note + Favorites + Mute (Volume) for about 5 seconds.

3. Navigate to: Version Information > Connected Device > CMU to verify your current version.

Step 3: Update Process

1. Select System Update > Search for Update.

2. Detect the files on your USB and follow the sequence: Install Failsafe first, then Reinstall.

3. Warning: Do not power off the car or remove the USB until the “Update Successful” message appears.

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📦 What’s Included

• Firmware Files: Both Failsafe and Reinstall (.up) files for v31.00.100A NA.

• Step-by-Step PDF Guide: A comprehensive manual is included with the update files.

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Disclaimer: This update covers original Mazda systems only. We are not liable for malfunctions in aftermarket accessories or non-genuine components.