Shimano STEPS error E910: Incompatible component combination detected

Shimano STEPS (E5000, E6100, E7000, E8000, EP6, EP801)Dealer neededDo not keep riding

The system has detected that one or more connected units are not compatible with the rest of the drivetrain. Motor assistance is switched off and walk assist is disabled as a result. The bike can still be pedalled unpowered, but no electric support returns until the mismatch is resolved.

Drive system	Shimano STEPS (E5000, E6100, E7000, E8000, EP6, EP801)
Severity	Dealer needed
Keep riding?	Do not keep riding
Typical cost	Dealer diagnostic time via E-TUBE PROJECT is typically 30-60 EUR, with replacement parts ranging from about 80 EUR for a display to 600 EUR or more for a drive unit.

Likely causes

Aftermarket or third-party component fitted that is not approved for the STEPS generation in use
Firmware version on the drive unit, display or battery does not match the rest of the system
Replacement unit installed from a different STEPS line (for example an E6100 part on an E8000 system)
E-TUBE PROJECT configuration not refreshed after a component swap or firmware update
Non-genuine or counterfeit component connected in place of an original Shimano part

How to fix Shimano STEPS error E910

1. Stop riding and switch the system off at the display.
2. Remove the battery, wait 30 seconds, and refit it to force a clean restart.
3. Check the display and battery model numbers against the parts list in E-TUBE PROJECT.
4. Connect the bike to E-TUBE PROJECT and run a configuration report to identify the flagged unit.
5. Update firmware on all units to the latest compatible release if available.
6. Replace any non-matching or non-genuine component with a Shimano original specified for your system.
7. Take the bike to an authorised Shimano dealer if the error persists or a drive unit replacement is required.

Go to a dealer if: Take the bike to an authorised Shimano dealer when E-TUBE PROJECT confirms an incompatible unit that the owner cannot source or refit themselves, particularly if the drive unit or battery is involved.
Warranty: A genuine compatibility fault or failed original component within two years of purchase is normally covered under Shimano warranty; crash damage, water ingress and worn consumables are excluded.
Typical cost: Dealer diagnostic time via E-TUBE PROJECT is typically 30-60 EUR, with replacement parts ranging from about 80 EUR for a display to 600 EUR or more for a drive unit.

Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.

Frequently asked

Can I reset Shimano error E910?

E910 is not a transient fault, so a basic power cycle or battery pull will not clear it. The code returns as soon as the system detects the same incompatible combination. A dealer must run E-TUBE PROJECT to confirm and resolve the mismatch.

Is it safe to keep riding with error E910?

No. The system disables motor assistance and walk assist, leaving only manual pedalling. Continuing to ride also risks intermittent power if contact is briefly restored, so the bike should be taken to a workshop promptly.

What does repair for E910 cost and is it covered by warranty?

Diagnosis typically runs 30-60 EUR and a single replacement component adds 80-600 EUR depending on whether it is a display, battery or drive unit. A genuine compatibility fault inside the two-year warranty period is usually covered, but crash damage and water ingress are not.

Related Shimano STEPS codes

E010 · Drive unit internal fault detected E013 · Drive unit firmware fault detected E020 · Communication fault between battery and drive unit E024 · Battery overcurrent protection triggered

Manuals and video

Official source: si.shimano.com

Not an official Shimano STEPS document. Compiled from workshop experience and public service information; details can differ per system version and bike brand.