How to Update Garmin GPSMAP 64st Maps: Step-by-Step Guide

Keeping your Garmin GPSMAP 64st maps up to date is essential for accurate navigation, reliable routes, and access to the latest trails, roads, and points of interest. Map updates ensure that your handheld GPS provides precise guidance whether you’re hiking, geocaching, or exploring new areas.

This guide explains how to update the maps on your Garmin GPSMAP 64st quickly and safely.

Why Update GPSMAP 64st Maps?

Updating your maps offers several benefits:

Accurate Navigation: Avoid outdated or incorrect roads and trails.
Updated Topographic Data: Access new terrain features, trails, and elevation changes.
Latest Points of Interest (POIs): Find restaurants, gas stations, landmarks, and other destinations.
Improved Route Calculation: Receive the most efficient routes based on current data.
Reliable Outdoor Navigation: Reduce the risk of getting lost in remote areas.

Regular map updates help ensure your GPSMAP 64st remains a dependable companion during outdoor adventures.

Method 1: Update Maps Using Garmin Express (Recommended)

The easiest and safest way to update maps is through Garmin Express, Garmin’s official device management software.

Step 1: Download Garmin Express

Visit the Garmin website.
Download Garmin Express for Windows or Mac.
Install the software following the on-screen instructions.
Open Garmin Express after installation.

Step 2: Connect Your GPSMAP 64st

Turn on your GPSMAP 64st.
Connect it to your computer using a USB cable.
Wait for Garmin Express to recognize the device.

If it’s your first time connecting, click “Add a Device” and follow the prompts.

Step 3: Check for Map Updates

Garmin Express will automatically check for available updates once your device is detected.
If a map update is available, it will appear in the update list.

Step 4: Install Map Updates

Click “Install” to start downloading and installing the map updates.
Wait while Garmin Express completes the installation.

⚠️ Do not disconnect your GPSMAP 64st during this process. Map updates can take 15–60 minutes depending on size and internet speed.

Step 5: Safely Disconnect the Device

Wait for Garmin Express to confirm that the update is complete.
Safely eject the GPSMAP 64st from your computer.
Disconnect the USB cable.
Restart your device if necessary.

Your maps are now updated and ready for navigation.

Using a microSD Card for Map Updates

If your device doesn’t have enough internal storage for a large map update:

Insert a compatible microSD card into the GPSMAP 64st.
When prompted in Garmin Express, select the microSD card as the installation location.

This allows you to install larger maps or multiple map regions without running out of space.

How Often Should You Update Maps?

Check for updates every 3–4 months.
Update before long hikes, camping trips, or outdoor adventures.
Enable Garmin Express notifications to get alerts for new map releases.

Keeping maps current ensures accurate navigation and reliable route planning.

Common Map Update Issues and Solutions

Device Not Recognized

Try a different USB port or cable.
Restart both the GPSMAP 64st and your computer.

Not Enough Storage

Delete old or unused maps.
Use a microSD card for additional storage.

Map Update Fails

Restart Garmin Express and reconnect your device.
Ensure your internet connection is stable.

Tips for a Smooth Map Update

Keep your device fully charged or connected to power.
Use a stable internet connection.
Avoid disconnecting the device during installation.
Backup important waypoints, tracks, and routes before updating.
Always use official Garmin software.

Final Thoughts

Updating the maps on your Garmin GPSMAP 64st is essential for accurate navigation, updated trails, and reliable outdoor guidance. Using Garmin Express makes the process simple, safe, and efficient. By keeping your maps current, you can explore with confidence, knowing your GPSMAP 64st will guide you accurately in every adventure.

Regular map updates are especially important before long trips, new hikes, or exploring unfamiliar areas. With updated maps, your GPSMAP 64st remains a trustworthy companion for all your outdoor activities.