The easy way to get the latest Android Os firmware version to your Samsung galaxy S2. This will work on the international version and the American versions.
If you are updating to ice cream sandwich or Jelly Bean this is the easiest way to do it.
While we wait for the Galaxy s4, the HTC One and the Sony Xperia z why not get the most out of our phones by updating to the latest Android Os version.
For written instructions check out : http://androidfact.com/how-to-update-galaxy-s2/