Mobile carrier AT&T has reportedly rolled out a mobile operating update to both Samsung Galaxy Note 4 and Samsung Galaxy Note Edge. Both Samsung smartphones have now received Android 5.1.1 Lollipop update.

It can be recalled that both phones had been introduced during the conduct of IFA 2014 at Berlin in September of the same year. At launch, both phones are powered by Android 4.4 KitKat.

“AT&T has not released an official changelog for the software update but it is expected to improve overall performance and also bring enhanced security to the Samsung smartphones. It has not been long that the international versions of the handsets received Android 5.1.1 Lollipop but the upgrade did not bring a patch to fix Stagefright vulnerability,” Tech Times said.

However, it should be noted that as of press time, it is still vague if the Android Lollipop update for both Samsung Galaxy Note 4 and Samsung Galaxy Note Edge will receive a fix for Stagefright.

In order to update, Samsung Galaxy Note 4 and Galaxy Note Edge users will receive a notification about the software update. Or, users can opt to access the phone setting via >Settings>About Phone then Software Updates and tap on “Check for Updates”. A badge icon will appear if the phone has received the update.

“Android 5.1.1 Lollipop software update weighs about 700 MB. To download the update, it is preferable that customers are connected to a Wi-Fi network and their phones should have at least 60 percent of battery charge. Galaxy Note 4 and Galaxy Note Edge are not the only devices getting Android 5.1.1 Lollipop update. In late September the Galaxy S6 and the Galaxy S6 Edge also received Android 5.1.1 Lollipop,” the report said.