1. After opening the application of the mobile phone, find the game icon, hold it down and drag it to the desktop.

2. Try to restore the factory settings after the important data of the mobile phone is backed up.

3. The specific steps are as follows: update iTunes to the latest version, then open iTunes, right-click the device on iTunes, and select Backup. ITunes will automatically back up the data on the iPhone. Then find the settings on the phone. Click and slide down to find general options. Then click General again and slide down to the end to see the restore. Click Restore to see many restore options. Because it is to restore all factory settings, I chose the second option.