Ok,here is it...
1. Go to the website
http://www.b-phreaks.co.uk to download the software "Nemesis Service Suite" (NSS in short)
2. Install it & during installation,there is an option "Virtual USB Device",choose that.
3. Then finish installation.
4. Run the software.
5. Click on the icon "magnifier" on top right of the NSS program.
6. Click "Phone Info"
7. Click "Scan"
8. You can see your phone info by now.
9. Enter the new product code 0556104 (s'pore) and check the box "enable" beside the product code.
10. Click the "write" button below it.
11. Wait for the flashing to be done,after that,click scan again,then click on the button "flash" to check whether the product code changed.
12. Confirm the product code is same with you entered and DONE!
13. Next step just install Nokia Software Updater to upgrade the firmware.
*The above product code is tested and 100% working.
Any other problem please raise it up so that we can have further discussion
Have fun

everytime i scan the phone info i will have an "Reading values...Error!" msg...whats wrong? appreciate your help...ive tried using all 3 mode (PC Suite,Printing,Data Storage) to connect to the pc