There was the Android Lollipop 5.1.1 update released for the Samsung Galaxy S6 Edge and Galaxy S6 for t-mobile users in USA couple of days ago and simultaneously there was the Lollipop 5.1.1 release for Galaxy S6 model number SM-G920F in France which is an International unlocked model.
The latest update of Lollipop 5.1.1 is available for only the unlocked international variant devices having model number SM-G920F. And this is mainly for users from Europe with the unlocked variants. It is better not to install the firmware update on devices other than the given models. You can directly download the firmware and flash the ROM to install the latest firmware on your Galaxy S6.
But make sure that the model number is matching or else your device will be stuck in boot loop so it is better to make sure and double check it is it compatible or not. So to make sure you are satisfied with the device details check the list mentioned below.
- Model: SM-G920F
- Model name: GALAXY S6
- Country: France
- Version: Android 5.1.1
- Changelist: 5012324
- Build date: Fri, 19th June 2015 22:29:17 +0000
- Product code: XEF
- PDA: G920FXXU2BOFJ
- CSC: G920FOXA2BOFJ
All these has to be checked before you go ahead and Flash the ROM. There are a lot of improvements in Android 5.1.1 Lollipop update which are mainly UI and not much in the performance or functionality. There are updates like the wallpaper parallax effect, change in UI, simplified exposure control system in the camera app, performance boost and fixes for minor bugs. The Ota update will also be made available in sometime according to sources and if you are not familiar with Flashing the ROM then it is advisable to wait for the OTA update instead of bringing trouble by experimenting on your device. The OTA update will be given to the device through Samsung Kies from where it can be installed on Galaxy S6 directly.