If your CHCNAV GPS is not working after an update, the receiver may fail to connect, lose RTK accuracy, show incorrect coordinates, or stop communicating with the controller. These issues can occur because of changed settings, firmware compatibility problems, interrupted installation, or outdated LandStar software.

This guide explains how to fix CHCNAV GPS not working after an update step by step.

Common CHCNAV GPS Problems After Update

After installing a firmware or software update, you may notice:

• CHCNAV GPS not connecting to LandStar
• No satellite signal
• RTK Fixed status lost
• Receiver not responding
• Incorrect coordinates
• Bluetooth/Wi-Fi connection problems
• Firmware update failed
• Navigation errors

Why Does CHCNAV GPS Stop Working After an Update?

Common causes include:

• Firmware installation issue
• Incorrect firmware version
• Changed receiver settings
• Lost RTK configuration
• LandStar compatibility problems
• Communication settings reset
• Corrupted update files
• Power interruption during update

Step 1: Restart CHCNAV GPS and Controller

A simple restart can fix temporary update-related problems.

Steps:

1. Turn off the CHCNAV receiver.
2. Turn off the controller.
3. Wait for 30 seconds.
4. Turn on the receiver first.
5. Turn on the controller.
6. Open LandStar and reconnect.

Step 2: Check Firmware Update Status

Verify whether the update completed correctly.

Steps:

1. Connect to your CHCNAV receiver.
2. Open receiver information.
3. Check the installed firmware version.
4. Compare it with the correct version for your model.

If the firmware version is incomplete or incorrect, reinstall the update.

Step 3: Check CHCNAV Receiver Connection

If the receiver is not connecting after the update:

Check:

• Bluetooth connection
• Wi-Fi connection
• Radio communication
• Controller pairing

Try:

1. Remove the old connection.
2. Restart both devices.
3. Search for the receiver again.
4. Reconnect through LandStar.

Step 4: Check LandStar Software Compatibility

A receiver firmware update may require a newer LandStar version.

Steps:

1. Open LandStar.
2. Check the installed version.
3. Update LandStar if required.
4. Restart the controller.
5. Connect to the CHCNAV receiver again.

An outdated LandStar version may prevent communication with updated firmware.

Step 5: Restore RTK Configuration

After an update, RTK settings may be changed or removed.

Check:

• NTRIP server details
• Username and password
• Mount point
• Base station settings
• Correction source

Steps:

1. Open LandStar.
2. Go to correction settings.
3. Re-enter RTK information.
4. Connect to corrections.
5. Check RTK status.

Step 6: Check GNSS Settings

Firmware updates may reset some receiver settings.

Verify:

• GNSS constellations
• Elevation mask
• Tracking settings
• Base/Rover mode
• Data output settings

Steps:

1. Open receiver configuration.
2. Review GNSS settings.
3. Restore previous configuration.
4. Save changes.
5. Test positioning.

Step 7: Check Antenna and Satellite Signal

If CHCNAV GPS shows no position after an update:

1. Move outdoors.
2. Check antenna connection.
3. Confirm the antenna is properly installed.
4. Wait for satellite tracking.
5. Check satellite count in LandStar.

Poor satellite visibility can appear as an update problem.

Step 8: Reinstall CHCNAV Firmware

If the update was interrupted or corrupted:

1. Download the correct firmware file.
2. Connect the receiver through the web interface or LandStar.
3. Upload the firmware package.
4. Start the upgrade process.
5. Wait for the receiver to restart.

Do not disconnect power during installation.

Step 9: Reset CHCNAV GPS Settings

If problems continue:

1. Backup survey projects.
2. Open receiver settings.
3. Restore default settings.
4. Reconfigure RTK and communication options.
5. Test the receiver.

A reset can fix configuration conflicts after updates.

Step 10: Check Power Supply

An interrupted update can happen because of low power.

Check:

• Battery level
• Charger connection
• Power stability

Try:

• Fully charge the receiver.
• Restart the update process.
• Keep the receiver connected to power during installation.

Common CHCNAV Update Problems and Fixes

CHCNAV GPS Won't Turn On After Update

Possible causes:

• Failed firmware installation
• Power interruption

Solutions:

• Charge the receiver.
• Perform a restart.
• Reinstall firmware if necessary.

CHCNAV GPS Has No RTK After Update

Possible causes:

• NTRIP settings removed
• Correction service disconnected

Solutions:

• Re-enter correction settings.
• Verify internet connection.
• Check base station availability.

CHCNAV GPS Not Connecting to LandStar After Update

Possible causes:

• Software mismatch
• Communication settings changed

Solutions:

• Update LandStar.
• Remove and reconnect the receiver.
• Check communication mode.

CHCNAV GPS Shows Wrong Location After Update

Possible causes:

• Coordinate system changed
• Datum settings reset

Solutions:

• Verify project coordinate system.
• Restore previous settings.
• Reconfigure the survey project.

Tips to Avoid CHCNAV Update Problems

• Backup settings before updating.
• Use the correct firmware file.
• Keep the receiver charged.
• Update LandStar before updating firmware.
• Avoid interrupting installation.
• Test RTK and positioning after updates.

Frequently Asked Questions

Why did my CHCNAV GPS stop working after an update?

The issue is usually caused by changed settings, firmware compatibility problems, lost RTK configuration, or an incomplete installation.

How do I recover CHCNAV GPS after a failed update?

Reinstall the correct firmware, restore settings, and reconnect the receiver through LandStar.

Can a CHCNAV firmware update affect RTK settings?

Yes. Some updates may require reconfiguring RTK correction settings.

Should I reset CHCNAV GPS after an update?

A reset is not always required, but it can help resolve configuration conflicts.

Conclusion

If your CHCNAV GPS is not working after an update, restart the receiver, verify firmware compatibility, reconnect LandStar, restore RTK settings, and check GNSS configuration. If the update was interrupted, reinstalling the correct firmware can restore normal operation.

Keeping firmware, LandStar software, and receiver settings properly configured helps maintain accurate GNSS performance and reliable surveying results.