please please please, check up first before you comment on ppls post, most samsungs phone does have a secret engineering menu, whether they have a track record is another thing, check up on this thread if you haven't read through it, it's also in the samsung section of the howardforums.
And about the roms extracted from phones, it is possible, I wasn't referring it can be done on samsung phones, but as a overall in the phone industry. I for one have done this on a motorola phone model rokr E1, you need info, check up on the motorola section in howardforums.
there are many shops in hong kong thaat will install f/w for you for a small charge, most grey import phone's are english or other european language f/w, and ppl wants chinese, this is the only way to have them installed if you dont know how to DIY, not everyone likes to search forums for info, and manufacture in hong kong will not install a chinese f/w in a imported phone.
kms