1. First of all, back up some files.
  WINSPBMT/
           Game Data/
                      Graphics/Icon0100.shp, icon0101.shp, icon0102.shp, icon0121.shp, icon0122.shp
                      OOBs/Obat20.obf
		      

2. Extract Southkorea.zip to folder which is spmbt installed.

3. Enjoy
