If the lock won't open, there could be several reasons:
- Blocked spokes: The spokes on the rear wheel may be blocking the lock. Gently wiggle the rear wheel, then try to open the lock again.
- Stuck lock lever: The lock lever may be stuck. Gently pull or jiggle the red lever after unlocking the bike via the app.
- Report damage: If the lock still does not work, report the damage using the damage report form on the details page of the respective StadtRAD in the app. Please include the bike number and select the category “Lock defective.”
- If the bike has already been rented, contact hvv@stadtradhamburg.de or call 040 - 18 00 43 370 to end the rental.