The PUK can also be obtained from the network service operator (ie. Entering the PUK number will bring back the original unlocked status of your cellular phone. The PUC code or PUK key is found on the SIM certificate, which you get when you first connect to a wireless network. Should the owner continue to repeatedly insert the WRONG pin number, and ten attempts is usually the maximum permitted, then the cellphone locks permanently and your SIM card may as well be thrown away. What happens if I continue to insert an invalid PIN? Most phones permit only three attempts to insert the correct PUK number (PIN) and should we fail to do so the phone is programmed to automatically lock. Your SIM card has been reported lost or stolen.You have entered the wrong PIN more than three times.SIM Locked Mobile Why am I being asked for my phone’s PUK or PUC number? While few of us bother to use a PIN, those who do are advised not to replicate our Banking PIN or similarly sensitive accounts, to change the PIN with frequency and NEVER write them down! All too often we forget or confuse these PIN’s and Passwords. Most mobile phones offer a security protection that, if activated, requires a PIN number to activate the phone after we switch on.

What causes my cellular phone to become locked? It is in fact the same as PUC, a similarly derived from Pin Unlocking Code. Few of us have heard of either acronym unless, through some error on our part, our GSM mobile phone, cellular phone or smartcard security feature becomes locked, and we are asked to insert the phones unique four to eight digit PIN ( Personal Identification Number) to reverse the measure. The acronym PUK is derived from the term Pin Unlocking Key. The PUK (or PUC) number is the PIN code needed to unfreeze the sim card. Has your mobile phone stopped working? Did you enter an incorrect pin number too many times? Is it showing a Locked SIM message? Does it ask for a PUK code? If it asking for a PUK key then you have probably messed with the security settings on your cell phone and the SIM card is now blocked. Is your mobile phone SIM blocked? Is it asking for a PUK code?

Enter sim card puk code