It looks like Sony has been able to keep up with its target time line and has now began pushing out its Android 6.0 Marshmallow upgrade to the Sony Xperia Z5. The Marshmallow software update which is said to spot a 32.1.A.1.163 build number is being rolled out to users of the Xperia Z5 variants with E6653, E6683, and E6603 model numbers. Other reports cite that a similar update could coming for the Premium and Compact models as well.Though the list of the countries seems to be on the rise at a relatively slow pace, the first updates were first spotted in Russia and Thailand regions. Severals users on Reddit have reported that the updates have already arrived to users in Australia, Austria, Ireland as well as Malaysia. Seemingly, the update is designated for both the unlocked and carrier branded smartphones, which is good news. The initial sightings of the Marshmallow roll out for Sony's Xperia Z5 model is said to be last week. Japan’s NTT DoCoMo started rolling out a different build of the update tagged 32.1.F.0.43 to its users around March 3rd.The update to Marshmallow will bundle the new key Android features with the inclusion of granular app permission controls, Google Now on Tap and the Doze mode battery saving function, and many more. This update package will also feature Google's latest February security patches on top. In addition, Sony has added several of its own tweaks to the UI, an extra Xperia Home launcher along with a few enhancements to its camera application. However, this update seems to have gotten rid of Sony's STAMINA mode and the adoptable storage feature for microSD card has also not been implemented either.If you haven't seen the update then sit patient, it may take a little while.

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What's my model number?

There are several ways to locate your model number:

Option 1
On your device, go to Settings, then "About device" and scroll down to "Model number"
Option 2
Often times you can view the model number inside the device, by removing the battery
Option 3
Using Samsung's model/serial number location tool

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