Th3z3D: It is my tool's bug. I haven't tested with DB2020 CID49 firmwares at all, because we cannot patch them for free. If you want to apply the unlock patch, you need to update the phone's CID to 52. Is there always a chance to loose your settings etc, but should not happen if you update the CID. You should always back-up your user data(contact list, pictures, ringtones, etc.) and then your GDFS.

khli2001: Please can you be more specific? My patch generatot isn't works, or you don't have the R6BC002 hong kong 52 firmware?

manjak: I'm glad that you have found a way to apply the patch. Enjoy the freedom :)

And guys, excuse me if I missed someone. There are so many questions...