First of all, I would just like to say that I am new to this forum and I apologize in anticipation if I am posting this information under the wrong category. I have done my best to read the rules before posting. Anyway here goes. I am quite desperate because I cannot use my phone as I should. I bought an Samsung Galaxy S Captivate I897 from A&T 9 months ago in Puerto Rico. I upgraded the OS to 2.2 whit Odin3. Now, after going to the store to unlock the phone to change to another carrier, none of the unlock codes work! I go to different store with the same result. . I don't know much about phones, but this is driving me crazy, and I would really really appreciate any feedback or suggestion here from someone more experienced.