Old World and OldSaves carpet (read caption)

I started playing Terraria again after a while. I left the game a little bit after shimmer was added. I changed my phone and tried to get my players and my worlds back, so I just I transferred the files I had in the red colored carpets (Players, Worlds) from my old phone and put it in my new one, but shimmer isn't in my world for some reason. Now with this context, I have a question, should I put my worlds and players into the OldSaves carpet, which is the blue colored one (route: Android/data/Terraria/OldSaves) because they are old worlds and players OR should I keep it on the two red colored carpets?