Sony Ericsson Z600 Benutzerhandbuch

111

Appendix

Security

PIN (Personal Identification 

Number)

When the PIN is enabled, your phone prompts 
you to enter the PIN each time you switch on the 
phone. You can change your PIN to any 4-8 
digit number at any time as long as the PIN 
option is enabled. To change the PIN 

PIN2

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 every 
time you turn on your phone. If you enter your 
PIN incorrectly 3 times in a row the SIM card is 
locked. This is indicated by the message, 

. To unblock it you need to enter your 

PUK (Personal Unblocking Key). Your PIN and 
PUK are supplied by your operator. To edit your 
PIN/PIN 2 and turn the SIM card lock on/off 

For security purposes, if you enter the PIN 
incorrectly 3 times, your PIN will be blocked and 
you will have to enter the PUK (Personal Unblocking 
Key) to unblock it 

card.

If the PIN option is disabled, the risk of 
unauthorised use of your phone is greater. The 
disabling of the PIN control is SIM card 
dependent.

PIN2 is a code provided by your network 
operator/service provider and is required for 
access to some features such as Fixed Numbers 
or Call Cost. These features are not supported by 
all networks.