I'm having a trouble with Pokemon HeartGold, I started playing on Desmume and i copied the save file (.dsv) to the Drastic folder in my phone, i played a little long and i wanted to move the savefile in my phone to the Desmume "Battery" folder, but when i start the game ( I checked that savefile and rom name are the same) the game starts without the save / or overwrites the existing save.

Any helps?