The Huawei Nova4 is a smartphone. If you want to set the novel mode, you can follow the following steps: 1 Open the settings application of the Huawei nova4. 2 In the 'settings' app, find the 'apps and notifications' option and choose the 'app manager' option. 3 Find the application you want to set to novel mode in the application manager and select it. 4 Find the "settings" option under the "applications" tab and click it. 5 Find the Reading Mode option in the Setting tab and click on it. 6 Find the option for novel mode in the option for reading mode and click on it. 7. Choose the novel you want to read on your phone and click the "Open" or "Close" button. After completing the above steps, the Huawei Nova4 will enter novel mode, which can automatically reduce the screen brightness and background light to improve the reading experience.