Using same modded apk from modder who mod it. About the obb, if you dont want to "accidentally" detele everything, go back to Android/obb/"nameofobb" folder and rename it with an extra letter like "nameofobbx" or "nameofobby". And if your phone isnt rooted and has installed signed apk, there is no way to overwrite ps apk or modded apk from another modder on the top of your current application, only rooted phone with full patched Lucky Patcher can do it. So make sure always bind your data to any 3rd platform such as Fb, Twitter or the game itself