Mhon bantuannya gan, ane pengguna lenovo s920 4gb... Kmrn" main game tiba" ad notif error music launcher... Tp ane lupa tulisannya gmn... Nah ane ok" in aja... Tiba" speaker blkg ane ga bkrja... Ga bs buka lagu, dsb.. Tp klo telp pakai speaker depan msh jelas.. Menurut ane ini...