The Android 5.1.1 Lollipop OTA update has been released by U.S. Cellular for its Galaxy S6 and Galaxy S6 Edge users. After T-Mobile, it is the second American carrier to release Android 5.1.1 for the new Samsung flagship smartphones.

U.S. Cellular has rolled out the Android 5.1.1 Lollipop with G920R4TYU2BOF7 baseband. The carrier has not release a changelog for the update. But Android 5.1.1 for the Galaxy S6 and S6 Edge will let users snap RAW and lower ISO value photos, states Phandroid. It will also bring along guest mode and new options to turn off parallax effect on the background along with some UI tweaks.

U.S. Cellular says there are two ways to upgrade to Android 5.1.1 on Galaxy S6 and Galaxy S6 Edge. The first one is to install the OTA update over Wi-Fi. Once connected to Wi-Fi, users are required to navigate to Settings > About Device > Software Upgrade and then continue ahead with the on-screen prompts.

The second option requires installation of Samsung Kies software. Once it is downloaded and installed, users are required to establish connection between the handset and PC by using a USB cable. After launching the Kies application, users will be able to see the notification on the arrival of the new firmware. The installation will begin once the Firmware button is clicked. It will suggest users to back up the data and after it the firmware will be installed.

AT&T, Verizon Wireless and Sprint are yet to release the Android 5.1.1 update for their Galaxy S6 and S6 Edge customers. The Android 5.1.1 is gradually arriving to owners of the Galaxy S6 and the Galaxy S6 Edge in France and the U.K.

Both the Samsung flagships of this year were officially announced in March through the Mobile World Congress 2015 tech expo. Both the handsets were first expected to reach 70 million units sale. However, since the customer adoption has turned out to be slower than expected, Samsung is expect to sell 45 million units of both handsets by the end of this year, reports the Korea Herald.