Does the subject want to ask: "Why can't Tieling Pass applet be opened?" ? Software defects. Tieling Access applet is an app specially serving the people of Tieling County. It is a very convenient app that can automatically locate and plan the route for the people. The reason why the app can't be opened is that the software has a bug. As of June 2022 10, the bug has been fixed, and users only need to reopen the software.