Do you want to hide your folder and file in your mobile without any software.Then follow steps mention below.
1. First of rename your folder with “.jad” extension.For eg- images.jad
2.In the same directory make same folder images but with “.jar” extension.For eg- images.jar
3.That’s it your original images folder ( images.jad) will be hide and images.jar will be same with no data.
4.To again access original folder (images.jad) just remove .jar from images.jar.
Simple .Enjoy