Sony recently updated the Xperia M (C190X) to firmware build number 15.4.A.1.9. Well now it is the turn of the dual-SIM enabled Xperia M dual (C200X), which has been updated from build number 15.5.A.0.18 to 15.5.A.1.5
An important new feature is the support of Xperia Themes. Sony says that other changes include an enhanced user experience, improved battery life and other software performance improvements. If you have updated your Xperia M dual, let us know your thoughts below.