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Samsung not in tune with the Canalys reportREUTERS/Hannibal Hanschke

After months of delay, American network carrier Sprint has finally rolled out the Android v6.0 Marshmallow for Samsung's 2015 and 2014 Galaxy Note series. The company is rolling out the new firmwares bearing build numbers N920PVPU2BPC3 and N910PVPU4DPC1 for Galaxy Note 5 and Note 4 respectively, SamMobile reported.

How to update OS firmware on Android phone via OTA (Over-The-Air):

Go to Settings >> About phone >> System updates

The OTA roll-out process is conducted in stages so it will take some time to reach all corners of the U.S.

The Marshmallow software is a little over 1.2GB in size and it comes with Doze power-saving feature, new "Now on Tap" search, support for new international languages, performance tweaks and numerous value-added features to enhance user-experience.

It addition to the Marshmallow features, the firmware also brings changes to the TouchWiz UI to make it more visually appealing, and the latest Android security update to safeguard against vulnerabilities of data theft via Stagefright bug.

Also read: Google Android 6.0 Marshmallow: 7 key features you need to know

So far, Android Marshmallow update has been made available to the Galaxy S6, S6 Edge, S6 Edge+, Galaxy Note 5, Note 4 and the Galaxy S5 in select markets.

Also read: Samsung releases Android Marshmallow update to Galaxy S5

Other Samsung devices, which are expected to get a taste of Google's new sugar-flavoured mobile OS are the Galaxy Alpha, Galaxy A8 (2015), A7 (2015), A9 (2016), A7 (2016), A5 (2016) and A3 (2016).