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According to Cricket, an update should have been posted yesterday to return full ring back tone functionality to your Muve Music enabled devices. Well specifically the Samsung GS3, Samsung GS4, Samsung Discover, Admire 2, and ZTE Source.

From what I see on the Google Play Store, 4.0.3 is still the latest version available. If anyone has 4.0.5 please let us know. Feel free to post up the apk file here.