Why Update Your Garmin Forerunner 255?
The Garmin Forerunner 255 features advanced dual-band GPS, multi-sport tracking, and heart-rate analytics. Regular software and map updates keep your tracking data precise, improve GPS stability, and add new training features from Garmin.
Updating ensures your device runs smoothly, prevents glitches, and enhances integration with Garmin Connect and music streaming services.
Check Your Current Software Version
1. On your Forerunner 255, press Up → select Settings → System → About.
2. Note the current software version number.
3. Compare it with the latest available version on Garmin Express or Garmin Connect Mobile.
Before You Start
- Charge your watch to at least 50%.
- Ensure a stable Wi-Fi or USB connection.
- Sync activities to Garmin Connect Mobile before updating to prevent data loss.
How to Update Garmin Forerunner 255 Maps & Software
Option 1 – Using Garmin Express (Computer)
1. Click “Update Now” above.
2. Download and install Garmin Express.
3. Connect your Forerunner 255 via the charging/data cable.
4. Garmin Express will automatically detect your watch and show available updates.
5. Select Install All to apply software and GPS updates.
6. Once complete, safely eject and restart your device.
Option 2 – Over Wi-Fi (Direct Update)
1. Ensure your Forerunner 255 is connected to Wi-Fi.
2. Go to Settings → System → Software Update.
3. Select Check for Updates and follow on-screen instructions.
4. Keep your device on charge until the installation is complete.
Troubleshooting Update Issues
- Restart your Forerunner and computer if the update fails.
- Ensure there’s enough free storage space.
- Check USB cable or Wi-Fi stability.
- Reinstall Garmin Express if the watch isn’t detected.
- Contact support via Live Chat for expert help.
Benefits of Regular Updates
- More accurate GPS and pace tracking.
- New workout profiles and Garmin features.
- Enhanced battery management and performance.
- Improved syncing with Garmin Connect Mobile.
Stay Race-Ready
Updating your Garmin Forerunner 255 keeps you ready for every run with precise GPS, smoother connectivity, and improved tracking accuracy. Keep your firmware fresh and your runs flawless.