The SIM may be unblocked by entering a further eight digit code known as the PIN unblocking key (PUK), which is also stored in the SIM. After ten incorrect attempts to enter the PUK, the unblocking key itself becomes blocked and then there isanbsp;...
|Title||:||Mobile Handset Design|
|Author||:||Sajal Kumar Das|
|Publisher||:||John Wiley & Sons - 2013-05-29|