1, log in to Pocket Baby official website.
2. Click "Login" in the upper left corner of the homepage and log in with the administrator or teacher account.
3. Enter the background management page and select "Class Management" or "Student Management" to enter the corresponding page.
4. Find the class or student to be set, and click the "Edit" button in its operation bar to enter the editing page.
5. Find the relevant options such as "QR code entry" or "code scanning entry" on the editing page, and check Open to save the settings.