This instruction is for computors with M$ Windows Here's an old trick I learned a long time ago. 1)Plug your phone into usb, then select Mass Storage. 2)When Windows asks what you want to do, select Open Folder 3)Depending on your version of Windows, you need to locate Folder Options, usually in the Tools Tab at the top of Windows Explorer. Once you launch Folder Options, click on the View Tab, now scroll down to Hidden Files and Folders and select Show Hidden Files and Folders. Right below that uncheck Hide File Extentions of Known Types. Now select OK to exit. 4)Now you are able to see the hidden folders on your phone's SD Card. (if you can't refresh your screen) 5)All the folders that are hidden need to be unhidden, here's how you do it. Right click on a hidden folder, select properties uncheck Hidden and Archieve. Click OK to exit. Do that with all the hidden folders. 6)Select the Java Jar file you want to install, Copy and Paste that to the Download folder. Once that is finished close the Explorer window and unplug your USB cable. 7)On your phone select the File Explorer, now you should be able to see the Download Folder, open it and then select the Java Jar App you just placed there. Your phone will prompt you, Where do you want to install the file? Select SD Card. Let install complete then exit File Explorer. 8)Select Games\Java\SD Card Game\then select the (Java App you installed). Have fun, just make sure to installed touch screen enabled Java Applications, not many out there for big screen like this phone has. www.getjar.com is a good place to start.