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The Android 5.1 Lollipop update is slowly reaching all Xperia M5 and M5 Dual smartphones and Sony has included the Android security patch that was released for January. As for the Xperia Z5 and Z4 Series, Sony has been slower in delivering the latest Android 6.0 Marshmallow update, but this will finally happen in February.

The Xperia M5 and M5 Dual models have started to receive the Android 5.1 Lollipop update which has 600MB in size. The update for the single SIM M5 smartphone carries the build number 30.1.A.1.33 and the dual SIM variant will receive the build number 30.1.B.1.33, but both the owners of devices who have also a SmartWatch 3, will be able to take pictures from the camera with this smartwatch. The Android 5.1 Lollipop comes also with improvements to the volume and silent mode control. The Xperia M5 isn’t available in Europe yet, but the pre-orders will begin on February 8, in the UK.

On the other hand, next month, the Xperia Z5 and Z4 Series will receive the Android 6.0 Marshmallow, but the list of approved handsets to get the new software upgrade contains also other Xperia models. Until now, Sony has rolled out a concept beta version of Marshmallow to its Xperia Z3 and Xperia Z3 Compact and currently, there are 10,000 Europeans enrolled in Sony’s program who have installed this beta version on their smartphones, but soon, the testing phase will end.

According to reports, the owners of the Xperia Z5, Z5 Premium and Z5 Compact devices will receive the Marshmallow update in the middle of February, being followed by other eligible devices such as Xperia Z4 Tablet, Xperia Z3 Compact, Z3, Z3+, Xperia Z2, Xperia 2 Tablet, Xperia M5, M4 and M4 Aqua, C4 and Xperia C5 Ultra. The last two models will be first upgraded to Android 5.1.1 Lollipop, then they will receive the Android 6.0 Marshmallow firmware.