Update firmware of Galaxy S 2 GT-I9100 to I9100XWMS2 Android 4.1.2. This is a latest Firmware I9100XWMS2 and people from MOTSlovenia (mobitel) got it through OTA. If you missed out then you can check KIES the official software for Samsung Galaxy S 2 GT-I9100. If you don’t have KIES then try this Galaxy S 2 GT-I9100 >about device > Software update.
In case of no notification of I9100XWMS2 on your Galaxy S 2 GT-I9100 you can update your Galaxy S 2 GT-I9100 through manual updating method. Yes you need to download the I9100XWMS2 file and then install it according to our guide.
Be sure you followed the each and every step from our guide. And don’t forget to take backup of Galaxy S 2 GT-I9100 before updating it to a I9100XWMS2
Here is specification of Firmware
Model: Samsung GT-I9100
OS Version: Android 4.1.2