Hiboy S2, S2R, S2 Pro, S2 MAX, KS4, KS4 Pro, S2R Plus and MAX Pro error codes · Hiboy S2 series

E7 Error on Hiboy S2 series

What it means + how to fix it From the brand

Quick answer

E7 on the Hiboy scooters (S2, S2R, S2 Pro, S2 MAX, KS4, KS4 Pro, S2R Plus, MAX Pro) means “Motor hall error.” Most likely cause: a problem with the motor's position (Hall) sensor or its wiring. Try this first: switch off and restart.

Try this first

Free, and each takes under 5 minutes.

Switch off and restart
Check the wheels turn freely

In plain English

Hall sensors tell the controller where the motor is so it can turn it smoothly. A Hall fault can make the scooter judder, run weakly or not start. It's a support job.

Step-by-step checklist

Work from the top. Steps go from free and easy to shop jobs. Switch the scooter off before touching any connector. Tick each step as you go. Your progress is saved on this device.

1Switch off and restartFree Turn the scooter off, wait 30 seconds, then turn it back on. If the code clears, note what you were doing when it appeared, in case it comes back.
2Check the wheels turn freelyFree With the scooter switched off, spin each wheel by hand. Look for a rubbing brake, something caught in the wheel, or a soft tire that makes the motor work harder.
3Contact support or a service centerShop job If the code stays after these checks, stop riding and contact the brand's customer support or an authorized service center. Don't open the deck, battery, controller or motor: most scooter batteries and controllers aren't user-serviceable.

Still not fixed?

Pages to try next:

All Hiboy scooters (S2, S2R, S2 Pro, S2 MAX, KS4, KS4 Pro, S2R Plus, MAX Pro) codes

When it's time for a shop: if you've worked through every step and the problem is still there, contact the brand's support or an authorized service center. Bring your notes on when it happens, plus the code.

Words on this page: Hall sensor Controller