Java mobiles are not supported to multi tap application i.e,not minimizable.
but it is possible for hack or disable the nokia security wall.Almost 5 Applications can run at a time.
How to Disable the Nokia Security Wall:
1.first Download J.A.F 19.68.2
2. Open J.A.F, connect your Phone via USB in Pc Suite Mode (Remember: Close Nokia Softwares; Nokia Pc Suite or NokiaOVI Suite)
3. Now go to BB5 Tab and tick the following.
*. Read pp
*. Normal Mode
*. CRT 308 (Already Ticked)
4. Now Click Service, save the pp file on your Hard Drive.
5. Open this pp file in Notepad and edit the lines.
*. 28 2 ( for Nokia Series40 3rd Edition)
*. 48 2 ( for Nokia Series 40 6th Edition)
6. Now save the file, open J.A.F again, go to BB5 Tab and tick the following.
*. Upload pp
*. Normal Mode
*. CRT 308 (Already Ticked)
7. Click on Service at the right top side and search that pp file you editted and saved some where on your Hard Drive.
8. Done! Now select Normal Mode from drop-down Menu.
9. Phone will Restart sometimes during disabling of Nokia Security Wall and when you will start your Phone, a message will pop-up “ Test in RNDIS Mode “, Press “ NO ” button.
Now Nokia Security Wall has successfully disabled.
How to Edit Java Applications:
1. Download any Java Application on your Computer and edit it
2. Before Editting, make sure the Application downloaded, is working fine on your Phone.
3. Open the .JAR file with WinRAR> META-INF > MANIFEST.MF and add this line. Nokia-MIDlet-no-exit: true.
4. Now copy the Application to your Phone.
5. Run Application and press directly Red Button.
Application will get minimize and wouldn’t ask you to ‘Allow to quit it’.
And you will have to Quit it manually.