If there is a problem with the third-party application downloaded and installed on the mobile phone, it can't be used normally (it can't be opened, the screen is stuck, it flashes back, etc.). ), mobile phones generally recommend the following steps for troubleshooting and handling: 1. Close and restart the application. 2. It is recommended to uninstall and reinstall the software. 3. Try to replace it with another version. 4. Update the next version of the mobile phone system and then try to install it. 5. After the factory settings are restored, try to reinstall the backup mobile phone data (phone book, SMS, multimedia). 6. If it still can't be used after being restored from the factory, other third-party software can be used normally, and only this software can't run normally, which is the compatibility problem of the mobile phone system. It is recommended to send the mobile phone to the nearest service center for testing and further processing.