Samsung Galaxy Note 4
[Representational Image]Update Galaxy Note 4 with Android 6.0.1 Marshmallow via CyanogenMod [unofficial] CM13 custom ROM [How to install] In Picture: A visitor holds a new Samsung Galaxy Note 4 smartphone after its presentation at the Unpacked 2014 Episode 2 event ahead of the IFA Electronics show in Berlin, September 3, 2014.REUTERS/Hannibal Hanschke

Samsung took longer than rivals like Motorola, LG and HTC in releasing the Android 6.0 Marshmallow update to its high-end devices, but it has now started pushing the firmware to two-year-old devices as well. The latest handset to get the OS is the Galaxy Note 4.

The Android 6.0.1 Marshmallow OTA (over-the-air) update has now been seeded to the Exynos 5433 variant of Galaxy Note 4 in several countries like Poland, India and the US, according to GSMArena. It added that the firmware weighs about 1.3GB, and shared screenshots of the update taken from a Turkish forum

The Galaxy Note 4 came running Android 4.4.4 KitKat when it was released in 2014, before being upgraded to Android 5.1.1 Lollipop. It will now get the Marshmallow OS — most likely in phases, as is the case with all OTA updates.

The South Korean technology giant has already rolled out the Android 6.0 Marshmallow update to its flagship devices like the Galaxy S6, Galaxy Note 5, Galaxy S6 edge and the Galaxy S6 edge+.

How to install Android 6.0.1 Marshmallow via OTA on your device

- Android 6.0.1 Marshmallow download notification will appear on your phone screen

- Press "Download" button

- Press "Restart & Install" button

- Rebooting will begin automatically

- You will see "Installing System Update" notice when installation starts

- Upgrading begins automatically

- Android 6.0.1 Marshmallow will run on your device after upgrading is done

You can also manually check availability of the new software by going to – 'Settings' >> 'About phone' >> 'System updates' >> 'Check For Update'.