Specific operation steps:

First of all, it depends on whether Huawei's system is the latest version. Turn on the phone and click the Settings button at the bottom of the main interface.

After entering the settings, scroll down and click System Update.

Let's see if the picture below is the Huawei system version. If you don't click Check Update at the bottom, the system will automatically update, which will take about 10-20 minutes. The mobile phone must have more than 50% power to update the system, otherwise the mobile phone cannot be updated without power.

After updating the system, a student mode icon will appear in the main interface. Click to enter.

After entering, there will be several exits, all of which are to click Next until entering the setting mode of student mode.