The over-the-air update for the smartphone also gives its owners some "Wi-Fi Calling Enhancements" in addition to the latest version of Android.
This download will change the version number of the Sprint Galaxy Note 4 to N910PVPU1BOB7. Besides the Lollipop update, the change notes show that it offers "Wi-Fi Calling Enhancements". Bear in mind that this rollout has just started and it may take a number of days before your particular Galaxy Note 4 is updated on Sprint's network.
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Newer model: Galaxy Note 5