I can't copy any .obb files from cracked games and such to the .obb file located in my Android folder. I can't write files to the folder, or delete the folder itself. I have tried numerous searches on google only to come up empty handed. Any help would be profoundly appreciated. I'm rocking a Samsung Galaxy S4 White from AT&T which I pre-ordered and received before they hit the shelves (not sure if that's relevant). It's rooted and everything. I have the modded google play store in as well.