Help Center › Troubleshooting & FAQ

🔧 Troubleshooting & FAQ

Solutions to common issues and frequently asked questions

⚡ Quick Issue Finder

🚨 Common Issues 🔌 Device Problems 🌐 Browser Issues 🎵 Audio Problems

🚨 Most Common Issues

Device won't connect / "No devices found"

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Solutions:
  1. Install/reinstall CP2102 USB driver
  2. Try a different USB cable
  3. Use a different USB port
  4. Use Chrome or Edge browser (not Safari/Firefox)
  5. Make sure you're using HTTPS (not HTTP)
  6. Restart browser and try again

No audio / Can't hear Morse code

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Solutions:
  1. Check system volume and browser audio settings
  2. Click anywhere on the page to enable audio (browser security)
  3. Try using headphones or different speakers
  4. Adjust the tone frequency (try 600-800 Hz)
  5. Check if other websites play audio correctly
  6. Restart browser or try incognito mode

Training not saving progress / Login issues

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Solutions:
  1. Make sure you're logged in to your account
  2. Check internet connection
  3. Clear browser cache and cookies
  4. Try logging out and back in
  5. Disable ad blockers temporarily
  6. Check if cookies are enabled in browser

Koch trainer not progressing / stuck on lesson

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Solutions:
  1. You need 90% accuracy to advance to the next lesson
  2. Complete at least 50 characters per lesson
  3. Practice more with current characters before advancing
  4. Lower the speed if you're struggling (15-20 WPM recommended)
  5. Use the "Reset Progress" button if needed
  6. Focus on listening, not counting dots and dashes

🔌 Device Connection Issues

🔴 Hardware Problems

  • Faulty USB cable - try a different cable
  • USB port issues - try different ports
  • Power issues - check device is powered on
  • Driver conflicts - reinstall CP2102 driver
  • Device firmware - check for Morserino updates

🟡 Software Problems

  • Browser compatibility - use Chrome or Edge
  • Web Serial API not supported
  • HTTPS requirement not met
  • Permissions denied by user
  • Antivirus software blocking connection

🌐 Browser Compatibility

✅ Recommended Browsers

Best Performance:
  • Google Chrome 89+
  • Microsoft Edge 89+
  • Chrome-based browsers (Brave, Opera)
Limited Support:
  • Firefox 55+ (no Web Serial API)
  • Safari (no Web Serial API)
  • Mobile browsers (limited features)

🎵 Audio Troubleshooting

🔊 Audio Not Playing

  1. Click on the page first (browser autoplay policy)
  2. Check system volume settings
  3. Test with headphones
  4. Try different tone frequency
  5. Check browser audio permissions
  6. Disable browser extensions

🎧 Audio Quality Issues

  1. Use quality headphones or speakers
  2. Adjust tone frequency (600-800 Hz works best)
  3. Lower volume if distorted
  4. Close other audio applications
  5. Check for audio enhancements/effects
  6. Try different audio output device

💬 Still Need Help?

📞 Contact Support

If you're still experiencing issues after trying these solutions, don't hesitate to reach out for personalized support.

📧 Contact Support 📚 Back to Help Center
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