There are too many programs running in the background of the mobile phone, which takes up the most running memory, and it is easy to cause the mobile APP to flash back. You can open the mobile phone task manager, close the background running program, release the mobile phone storage, and then reopen the APP for use.

The application version is too low or the mobile phone software is incompatible with the system, which will also cause flashback. In this case, please try to upgrade the mobile application to the latest version first. If it is caused by incompatibility, it is recommended to uninstall the mobile phone software and use similar software.