# Troubleshooting GPS Issues

During a tracking session, the eStela Mobile App may display warnings related to GPS or device behavior. These messages are designed to help you correct issues before they affect the tracking quality.

Below are the most common errors and what they mean:

### Common Error Messages

* **The settings do not allow eStela to access the location ‘Always’. Tracking will stop in a few seconds.**\
  Make sure location access is set to “Always allow” in your phone’s settings. If set to “Only while using,” tracking may stop when the screen is locked or the app goes to the background.
* **GPS signal is weak. Tracking will resume once a stronger signal is available.**\
  Your device may be inside a cabin or in a location with poor sky visibility. Move it to a more open area to regain signal.
* **Movement stopped. When the movement resumes for several seconds, the app will resume tracking your position.**\
  Tracking pauses when no movement is detected. This helps reduce noise when boats are stationary. Tracking will restart automatically once movement resumes.
* **Connection interrupted. Recorded positions will be sent automatically once the signal is restored.**\
  The app is storing your GPS data locally. Once the internet connection is available again, it will send all saved data to the server automatically.
* **Power Saving mode is active. This mode can limit certain background services, such as GPS or internet connection.**\
  Disable power-saving or battery optimization settings for the eStela app to ensure it works properly in the background.

### Best Practices for Reliable GPS Tracking

To minimize tracking interruptions:

* Place the mobile in a fixed, open area, like the chart table or near a window — avoid pockets or bags.
* Keep the phone charging throughout the race to avoid shutdowns or low power restrictions.
* Avoid moving the phone around. Combined movement from the sailor and the boat can interfere with GPS accuracy, especially when calculating heading and VMG.

### Need Help?

If you’re experiencing issues:

* Tap `Report an error` in the mobile app to send a quick problem report
* Then tap `Send log to developer` so we can analyze your device’s activity and help debug the issue


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