I'm using a Samsung Sgh-a737 handset. I would like to know that is the puk code same for all the sgh a737 mobile phones. By mistake i had locked my Samsung Sgh-a737 mobile phone and i need to unlock my puk code. Can any body tell me that how can i do so? Kindly provide me the correct logical solution for the above issue. Any kind of help on the above issue would be appreciated.