What you will NEED!
1. A Samsung Galaxy 5
2. The 2.2 Firmware i5500( click here to download password = samfirmware.com).
2.2 for i5503 is now available (click here to download pass = samfirmware.com)
OR you can choose from available ROM's on the site http://www.samfirmware.com/WEBPROTECT-i5500.htm
NOTE- Don't download the ROM for i5508 version as it it galaxy 5 with resistive touch screen and your touchscreen will not work
UPDATE : WE HAVE REPORTS that the i5503 is not working properly with the above rom. So try it at your own discretion.
3. ODIN downloader (click here to download).
4. OPS files (click here to download).
5. A windows PC + samsung data cable.