I forgot my puk code for lg kf600

PUK code stands for Personal Unlock key and has nothing to do with the box it is a code  for your SIM in case you enter wrong PIN three times contact your service provider and ask for your unique PUK code which will be given to you after their enquiry. Do Not enter random nos. till you get your PUK code as it will block your SIM card and you`ll have to buy a new one.