Five things kill more people in the United States than anything else: heart disease, cancer, lung disease such as emphysema and chronic bronchitis, stroke and unintentional injuries such as those on roads or caused by medication overdoses.
PUK, which is sometimes called the PUK Code, stands for Pin Unlock Code.. It is occasionally called PUC, which is the same as PUK.. This special code is needed to unlock the cell phone if the wrong four-digit pin number has been entered three times in a row or if the SIM Card has been reported stolen.
Know when you need to use it. If you have a PIN number on your SIM card as an extra security measure, you'll need to type the PIN number in each time you turn on your phone. Otherwise, the PUK code is needed only if you enter the SIM card pin code wrong too many times.