Its time for Android 5.0 Lollipop for many variants of Galaxy S5 but AT&T is providing Android 4.4.4 Kitkat update to the users. OTA update is rolling out to the AT&T Samsung Galaxy S5 with all features packed in Android 4.4.4.
Technically, the update weighs around 500 MB and here’s the changelog:
- Android 4.4.4 KitKat
-  – Miscellaneous improvements, bug fixes and security updates
- HD Voice Capability (VoLTE)
- AT&T Service additions:
-  – Mail – ATT Mail (att.net mail)
-  – AT&T Live
-  – Uber
-  – Remote Support
It will fix your root permission so if you have rooted your device then you need to re root it again after installing the new firmware.