Updating the Simrad firmware is an important maintenance step that helps improve device performance, fix software bugs, enhance GPS reliability, and add new features to your marine navigation system. Firmware updates provide improvements for Simrad chartplotters, GPS units, sonar systems, radar devices, and connected marine equipment.

If your Simrad device is experiencing GPS errors, slow performance, connectivity issues, or navigation problems, installing the latest firmware update may help resolve these issues.

This guide explains how to update Simrad firmware, different update methods, preparation steps, and solutions for common firmware update problems.

Why Update Simrad Firmware?

Regular firmware updates provide several benefits.

Improve System Performance

Firmware updates can improve:

• Device speed
• System stability
• GPS performance
• Navigation functions
• Overall reliability

Fix Software Problems

Updates may resolve:

• GPS signal errors
• System freezing
• Unexpected restarts
• Connectivity issues
• Navigation errors

Add New Features

Firmware updates may include:

• New navigation tools
• Improved user interface
• Better accessory support
• Enhanced compatibility

Before Updating Simrad Firmware

Before installing a firmware update, complete these preparation steps.

Check Your Simrad Model

Identify your device model, such as:

• Simrad NSS series
• Simrad NSO series
• Simrad GO series
• Simrad Cruise series

Using the correct firmware prevents compatibility problems.

Check Current Firmware Version

To check your current firmware:

1. Turn on your Simrad device.
2. Open the Settings menu.
3. Select System Information.
4. Check the installed firmware version.

Backup Important Data

Before updating, save:

• Waypoints
• Routes
• Tracks
• Custom settings

A backup protects your navigation data during the update process.

How to Update Simrad Firmware Using Wi-Fi

Many newer Simrad systems support wireless firmware updates.

Step 1: Connect Simrad Device to Wi-Fi

1. Turn on your Simrad navigation system.
2. Open network settings.
3. Select a Wi-Fi network.
4. Enter the password.
5. Confirm the internet connection.

Step 2: Check for Firmware Updates

1. Open the settings menu.
2. Select software or system updates.
3. Choose check for updates.
4. Wait for available firmware versions.

Step 3: Download and Install Firmware

1. Select the available firmware update.
2. Start the download.
3. Confirm installation.
4. Wait until the update finishes.
5. Restart your Simrad device.

During installation:

• Keep the device powered.
• Do not disconnect Wi-Fi.
• Do not turn off the system.

How to Update Simrad Firmware Using microSD Card

The microSD card method is commonly used for many Simrad models.

Step 1: Prepare a microSD Card

You will need:

• Compatible microSD card
• Computer with internet access
• Card reader

Ensure the card has enough storage space.

Step 2: Download Simrad Firmware Update

Follow these steps:

1. Open the Simrad support website.
2. Select your device model.
3. Download the latest firmware file.
4. Save the file to your computer.

Make sure the firmware matches your Simrad model.

Step 3: Transfer Firmware Files to microSD Card

1. Insert the microSD card into your computer.
2. Format the card if required.
3. Copy the firmware update files.
4. Safely remove the card.

Do not rename or modify update files.

Step 4: Install Firmware on Simrad Device

1. Turn off your Simrad unit.
2. Insert the microSD card.
3. Turn the device back on.
4. Wait for the update notification.
5. Select the firmware update option.
6. Allow the installation to complete.

Do not remove the card or disconnect power during installation.

Step 5: Verify Firmware Installation

After updating:

1. Restart your Simrad device.
2. Open system information.
3. Confirm the new firmware version.
4. Test GPS, charts, and navigation functions.

How to Fix Simrad Firmware Update Problems

If your firmware update fails, try these solutions.

1. Check microSD Card Problems

Firmware installation may fail due to:

• Damaged memory card
• Unsupported format
• Corrupted files
• Insufficient storage

Try using another compatible card.

2. Verify Firmware Compatibility

Make sure:

• Correct model is selected.
• Firmware version matches your device.
• Downloaded file is complete.

Installing incorrect firmware can cause system issues.

3. Check Power Supply

Power interruption during firmware installation can cause failures.

Ensure:

• Battery is fully charged.
• Power connections are secure.
• Device remains powered.

4. Restart Simrad Device

If the device freezes:

1. Turn off the unit.
2. Disconnect power.
3. Wait briefly.
4. Restart the system.

5. Reinstall Firmware Update

If the firmware update does not complete:

1. Remove the microSD card.
2. Download the firmware again.
3. Copy files again.
4. Restart the installation process.

Fix Simrad GPS Problems After Firmware Update

If GPS problems occur after updating:

Try:

• Restarting the device.
• Checking GPS source settings.
• Inspecting antenna connections.
• Resetting system settings.
• Reinstalling firmware if necessary.

Fix Simrad Navigation Errors After Firmware Update

If navigation features stop working:

Check:

• Chart compatibility
• GPS settings
• Network connections
• Connected accessories

Updating charts along with firmware may improve compatibility.

Tips for Successful Simrad Firmware Updates

Follow these recommendations:

• Backup navigation data before updating.
• Download firmware only for your exact model.
• Use a reliable microSD card.
• Keep stable power during installation.
• Do not interrupt the update process.
• Test the device after updating.

Frequently Asked Questions

How often should I update Simrad firmware?

Update your firmware whenever a new compatible version is released to maintain performance and reliability.

Can I update Simrad firmware without a computer?

Yes. Many newer Simrad devices support Wi-Fi firmware updates.

Will firmware updates delete my saved routes?

Firmware updates usually do not remove saved data, but creating a backup is recommended.

Why is my Simrad firmware update failing?

Common causes include incorrect firmware files, SD card problems, insufficient storage, or interrupted power.

Does Simrad firmware update improve GPS performance?

Yes. Firmware updates can improve GPS communication, system stability, and navigation performance.

Conclusion

Learning how to update Simrad firmware helps keep your marine navigation system reliable, efficient, and up to date. Whether you use Wi-Fi or a microSD card, following the correct update process ensures your Simrad device receives the latest improvements.

Always verify your model, back up important information, use compatible firmware files, and maintain stable power during installation for a successful Simrad firmware update.