Sony Ericsson K510i User Guide - Page 51

More features To use the stopwatch 1 } Organizer } Stopwatch } Start. 2 Select New lap or Stop. 3 Restart or } Reset. Press and } Yes to minimize and run the stopwatch in the background. Timer Your phone has a built-in timer. When the signal rings, press any key to turn it off. To set the timer } Organizer } Timer and enter the hours, minutes and seconds for countdown. Calculator Use the calculator to add, subtract, divide and multiply. To use the calculator } Organizer } Calculator. • To select ÷ x - + . % =, press or . • To delete the figure, press . SIM card lock The SIM card lock protects your subscription, but not your phone itself, from unauthorized use. If you change SIM cards, the phone still works with the new SIM card. Most SIM cards are locked at the time of purchase. If the SIM card lock is on, you have to enter a PIN (Personal Identity Number) every time you turn on your phone. If you enter your PIN incorrectly three times in a row, the SIM card is blocked. This is indicated by the message PIN blocked. To unblock it, you need to enter your PUK (Personal Unblocking Key). Your PIN and PUK are supplied by your network operator. You can edit your PIN and select a new four- to eight-digit PIN. If the message Codes do not match appears when you edit your PIN, you entered the new PIN incorrectly. If the message Wrong PIN appears, followed by Old PIN:, you entered your old PIN incorrectly. To unblock your SIM card 1 When PIN blocked is displayed, enter your PUK } OK. 2 Enter a new four- to eight-digit PIN } OK. 3 Re-enter the new PIN to confirm } OK. This is the Internet version of the user's guide. © Print only for private use. 51