====== Install Java apps offline, from PC ====== Source: * http://forum.gsmhosting.com/vbb/f352/f480-java-install-without-wap-tutorial-software-609664/ * http://www.forummobiles.com/index.php?showtopic=160797&st=896 
   1. Download Driver & File Explorer.
   2. Uncompress SAMSUNG_Composite_USB_Driver_4_34_WHQL.zip and execute Setup.exe.
   3. Connect F480 to PC. First time you should be prompted with a 'device installed and ready' message.
   4. Execute TkFileExplorer_2.2.exe
   5. Go to Settings - COM.
   6. Scroll down Port window: You should get just one COMxx option. Choose it and press OK.
   7. Go to File - Connect. You should get the F480 File System Tree at TkFileExplorer bottom half side.
   8. Go to /Exe/Java/Games
   9. Create a New Folder for your game
  10. At TkFileExplorer PC upper side select game JAD/JAR files and copy to F480 created folder using drag&drop or right button menu Download option.
  11. Repeat steps 9 & 10 for all games you want to install at a time.
  12. Disconnect USB cable
  13. Dial *#6984125*#
  14. Go to Internals (Master Key: *#9072641*#)
  15. Go to Storage Settings and select Update Java DB

Enjoy! ...and save money!

NOTE 1:
You do not need to change Samsung USB mode to Qualcomm. Leave it at its default Samsung mode (if you do not understand this just do nothing )
NOTE 2:
Once driver is installed, Samsung PC Studio 3 still works.

SOURCE:
http://www.forummobiles.com/index.php?showtopic=160797&st=896