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How does Sony Ericsson X 10 customize the setting information ringtone?

Open the settings menu in the phone-open the application-open the management application, and find the Android ringtone system in all the columns. After opening, find and clear the default settings, and then click Later. After the setting is completed, set it-after clicking the notification ringtone in the voice, there will be two options, one is the Android ringtone system, and the other is that the voice selector chooses the latter to set the custom ringtone.