Lamtto RC23 Keeps Restarting? Fix Power, Audio & WiFi Issues (Quick Guide)

When using the Lamtto RC23 CarPlay AI Box, you may occasionally encounter hardware, audio, or connection-related issues.

Most of these problems are not caused by the device itself, but are related to power supply, vehicle compatibility, or system behavior.

This guide summarizes common issues and provides practical solutions to help you resolve them quickly.

Hardware Issues

Indicator Light Flashing or Device Keeps Restarting

If your RC23 is constantly restarting or the indicator light keeps flashing, it is usually related to power supply issues.

Possible Causes:

Faulty or unstable USB port in the vehicle
Insufficient or inconsistent power output

How to Fix:

Check if your car's USB port is working properly
Connect your phone to the same USB port to test power stability
Try using a different USB port in your vehicle

In most cases, switching to a more stable power source resolves the issue.

Sparks When Plugging into the Car

The RC23 is designed to work with 5V power supply only.

Confirm that your car's USB port outputs 5V and avoid using ports with higher or unstable voltage. Using incorrect voltage may affect device performance or safety.

Audio Issues

Phone Call Echo or Microphone Not Working

The RC23 itself does not include an independent audio system. All call audio is handled by your car's original infotainment system.

What to Check:

Make sure your car's audio system is not muted
Check the vehicle's microphone and call settings
Adjust volume levels on your car system

This issue is usually related to the car's audio setup rather than the RC23.

Other Common Issues

WiFi Hotspot Does Not Connect Automatically

Some users notice that they need to manually reconnect to the hotspot each time the car starts.

How It Works:
Once your phone hotspot is enabled, the RC23 will automatically connect within 5–10 seconds. Make sure your phone hotspot is turned on before driving and wait a few seconds after startup for automatic connection.