Unblocking a SIM card
- 1). Contact the service provider. As a security precaution, wireless providers typically do not give out PUK numbers when activating a phone. The PIN protects a cell phone from unauthorized use and the PUK serves as a backup if a user forgets the PIN. If someone steals a phone and knows the PUK, the thief can easily unlock and use a stolen phone. Wireless customers can call their providers to get the PUK code and AT&T customers can access the number through their online account. Log onto your account and select "My Services," "My Phone/Device" and "Unblock SIM Card."
- 2). Answer any security questions. If a phone asks for a PUK number, it means the user does not know the PIN. Customer service representatives will likely suspect theft and need to confirm the user's identity. Wireless providers may even have policies dictating that customer service representatives can only give the PUK to the phone's account holder.
- 3). Enter the PUK code and press "Yes/OK." The PUK code will be eight digits long and each one is unique to a SIM card. Some Motorola users have to enter **5* if the SIM is blocked, but the phone is not displaying a message asking for the PUK.
- 4). Reset the PIN. Phones ask for PUK codes because a user entered the incorrect PIN. Therefore, users need to create a new PIN in order to use the phone again.