Tried to unlock my phone with xda guide, boot-loop. Took it to be repaired by some guy in a cellphone shop, he was only able to flash it to gingerbread, the USB was non-functional (sound, gps, camera, as well) so he was unable to unlock it. Did my own flashing - cannot return to froyo (always gives a boot-loop). I am able to get USB and debugging now with latest version of gingerbread, but camera, audio, time/date (always resets to four and a half years ago when it auto-reboots), don't work and there is no samsung service center that will deal with foreign bought phones (purchased in France) here in Salvador, Brazil. If anyone has any ideas, they would be greatly appreciated!