Screen capture on Android phone is always a tricky thing and if your phone is not rooted, you cannot do it without connecting your phone to PC. Samsung Galaxy S2 i9100 has come up with an easy solution for screen capture. You can long press Power button and Home button together and release it together will capture current screen. You will see a message “Screen captured. Saved as image file”. Captured image will be seen in gallery in ScreenCapture folder.