Segway error code 35: Controller fault

What does this code mean?

Segway's manual lists it as a controller fault. Community sources also link it to a controller left on its default serial number; if the SN in the app doesn't match the one on the scooter, out-of-warranty scenario 4 can apply.

Which models show it?

Models that show two-digit codes, such as Max G30 / Max G2, the E series (E2, E2 Pro), the F2 series and the ZT3 Pro

Safe checks you can do yourself

1. Switch the scooter off, wait 10 seconds and switch it on again; if the code stays, note it down.
2. Check the fault and battery details in the Segway app and attach a screenshot to your service request.

If the code stays after these checks, stop using the scooter and open a service request.