Hide your files in Nokia S40 mobiles with out using any softwares. Yes. It's true. To hide ur files just follow these 5 steps Step1: Create a folder with an extension .jad Ex: ram4u.jadStep2: Move Ur files into that folder. means which files you want to hide?Step3: Now create another folder with name of previously created folder in the Same directory.But now extension is .jar Ex: ram4u.jarStep4:Finish. Now you will see the magic. 1st folder can't be show in that directory.Step5: If you want to Unhide ur folder, simply delete .jar Folder.