Does the subject want to ask "the solution to the signature error of taxi display" The solution is to check the network connection, update the application and clear the cached data.

1. Check the network connection: The wrong signature may be caused by unstable network connection. You can try switching networks or reconnecting with Wi-Fi.

2. Update the application: If the version of the taxi application used is too low or there are loopholes, it may lead to wrong signature. You can try to update the application version.

3. Clear cached data: Sometimes too much cached data in the application will lead to signature errors. You can try to clear the cached data in the application.