1: Open the settings on the home screen of the phone first. There will be a sound in the settings, as shown below:

2: Open the sounds in the settings, and an incoming call will appear. Ringtone, as shown below:

3: Finally, click on the incoming call ringtone of the mobile phone, and there will be the incoming call ringtone that comes with the Huawei mobile phone. You can choose the ringtone you like, as shown below: