Didn't find anything, and it would probably void the warranty. But on the upside, using the app isn't necessary to operate the bike, and the most important features work with the controller/display on the handlebar. The motor lock is disabled for now and I'm resorting to more traditional methods of bike security... a chain lock. The motor lock has a huge disadvantage anyways because it depends on a bluetooth connection to the app on a phone. If that phone for some reason doesn't work or is unavailable then the bike is essentially bricked. It's a heavy and bulky cargo bike, so being stranded somewhere with a blocked motor would be bad.