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How to Easily Complete a Twonav GPS Map Update

Updating your TwoNav GPS ensures you’re always navigating with the latest maps, terrain data, and software. Whether you\’re hiking, cycling, or exploring remote areas, this guide walks you through each step with ease.

Step 1: Ensure You’ve Installed TwoNav Land or Air Software

  1. Visit TwoNav’s website and download the latest TwoNav Land (for desktop) or Air (for mobile) software.

  2. Install and launch the program—it’s the control center for managing your device and maps. 

Step 2: Connect Your TwoNav Device via USB

  1. Plug your GPS into your PC with a USB cable.

  2. In Land/Air’s sidebar, your device appears under Data tree → Storage files → GPS TwoNav. 

Step 3: Update TwoNav GPS Software (Firmware)

  1. Right-click your device entry and select “Update TwoNav software”.

  2. Land/Air checks for firmware updates and lets you install them with a click.

  3. Wait for the process to finish—don’t disconnect until complete. 

  4. Once done, safely eject and restart your GPS. The latest firmware ensures stable performance and compatibility.

Step 4: Purchase Map Updates Through myTwoNav

  1. Go to  and log in to your account.

  2. Navigate to “My maps”, then open the relevant map category (e.g., TomTom, OSM).

  3. If an update is available, a “Update available – Buy” button appears. Add the map to your cart and complete the purchase. 

  4. After payment, you’ll receive email instructions with download links.

Step 5: Download & Install Map Updates

Automatically (via Land/Air):

  • Under “My maps”, select “Automatically install maps with TwoNav Downloader” to refresh updates directly with your connected device. 

Manual Install:

  • Download map files (typically ZIP archives).

  • Extract and copy them to the Maps folder on your device or microSD card, depending on your model.

Step 6: Confirm Installation & Restart

  1. Disconnect your GPS safely from the computer.

  2. Power it on—two quick restarts may occur (standard eBoot/boot sequence). 

  3. In the Maps section, verify the new version number and refresh timestamp.

Step 7: Explore the Updated Maps & New Features

  • You should see updated terrain, labels, and roads.

  • Firmware updates might include improvements to route-planning tools and on-device capabilities:

    • On-screen toolbar with undo/delete, waypoint icons, freehand drawing, snap-to-road routing, etc. Here’s a hands-on video showcasing these new navigation tools:

TwoNav – New tools for planning a route (firmware update walkthrough)

Step 8: Final Checks & Calibrations

  • Perform a quick compass calibration (if available).

  • Set your preferred map profiles (like OSM Topo or satellite layers).

  • Test route planning: tap to create a route, add waypoints and check alerts.

  • Ensure your device settings (units, alarms, profiles) are all as desired.

Step 9: Regular Maintenance (Best Practices)

  • Check for firmware updates every few months.

  • Subscribe to map updates—especially for regions with fast-changing road networks.

  • Use TwoNav Downloader for simple auto-installation.

  • Keep a backup of your maps via myTwoNav.com, especially before manual changes.

Why Updating Matters

  • Accurate navigation: Benefit from the most recent road and trail data.

  • Latest features: Access new route-planning tools and UI improvements.

  • Improved stability: Stay compatible with desktop/mobile software upgrades.

Quick Reference Table

Task Tool & Location
Software install TwoNav Land/Air (desktop/mobile downloads)
Firmware update Right-click device → “Update TwoNav software” in Land/Air 
Map update purchase myTwoNav.com → “My maps” → Update available
Map installation TwoNav Downloader or manual copy to Maps folder
Post-update check Restart GPS, verify map version, test new features

Final Thoughts

Updating your TwoNav GPS—both its firmware and maps—is straightforward with TwoNav Land/Air and myTwoNav. This ensures reliable navigation, improved mapping accuracy, and access to the latest firmware capabilities. Follow these steps regularly to keep your device at peak performance.

Need help with a specific TwoNav model (Ultra, Terra, Aventura) or troubleshooting issues? Just say the word—I’m here to help.

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