Hi! I understand your Segway scooter is turning on but showing error code 19 along with a tool (wrench) icon on the side. That tool icon typically indicates a mechanical or hardware-related issue that needs attention.

To better assist you, could you please tell me the scooter model you are using? Also, have you noticed if the scooter beeps or if anything specific happened before this error appeared (like a fall, bump, or charging issue)?

Meanwhile, here's a general step-by-step guide you can try for error 19:

1. Power Cycle the Scooter: Turn off the scooter completely and unplug it from charging or any external battery. Wait about 30 seconds before turning it back on.

2. Check the Brake Lever: Error 19 sometimes relates to the brake system. Try squeezing the brake lever a few times firmly and see if the error clears. Some users reported that this temporarily resets the error.

3. Inspect Battery Connection: Make sure the battery (internal or external) is securely connected. Remove the external battery (if applicable), wait a few seconds, then reconnect it.

4. Look for Mechanical Issues: Examine the brake discs, folding latch, and other hardware parts near where the tool icon is appearing. Ensure nothing is stuck or damaged.

5. Reset via Segway App: If you have the Segway app, try connecting your scooter and checking for any error reset options or software updates.

If these steps don’t clear the error, it could be a sign of a deeper hardware problem like a faulty brake sensor or battery management system fault.

Feel free to give me those extra details so I can tailor the guide more specifically for your iOS app and scooter model. Also, I can share a helpful video that relates closely to error 19 if you want.

Are you able to try these initial steps? Let me know how it goes!