First open "System Settings" and find "Backup Reset"; Then click Enter and select "Restore factory settings of mobile phone"; When resetting, only the mobile phone is selected, and "format SD card" is not selected. After the factory settings are restored, the software can be used.

Huohuotu is a brand of Shenzhen Boyue Commodity Co., Ltd., which focuses on the research of "parent-child wisdom early education". Mainly engaged in early education story machine, learning machines, reading robots, point reading pens, logical thinking courses and original IP content.