Samsung i750 User Guide - Page 77

Note: If your PIN is entered incorrectly three times, the SIM card will be blocked and your phone asks for PIN Unblocking Key (PUK). If that occurs, you can unblock it with the PUK from your service provider. Checking you are connected The default settings for your phone are programmed with the assumption that you want to use your phone. So, providing you have inserted a SIM card, your phone will activate your mobile phone connection to your service provider's network. The icon indicates that you are connected to the network of your service provider. A full strength signal is indicated by and as the strength of the signal diminishes so will the number of vertical bars in the icon, with no bars indicating no signal. Your phone Turning the phone functions on or off As indicated previously, your phone will turn on when you install the battery and insert a SIM card. However, you can choose to turn off your phone and just use the Pocket PC features at any time - and then turn it back on when you want. Note: In many countries you are required by law to turn off your phone when you fly. Turning off the screen of your phone doesn't actually turn off your phone; you must turn off your wireless connection to your operator's network. 75