Equipment: Huawei P40
System: HarmonyOS2.0
1. First, on Huawei's mobile phone, open the setting service.
2. Then on the settings page, open the option of healthy use of mobile phone.
3. Then, on the phone settings page for healthy use, click Start.
4. Enter the health mobile phone user settings page, select children to use, and click OK to enter the youth mode setting process.