Sony Ericsson T637 User Guide - Page 7

Enter your PIN Personal Identity Number, if you, Personal Unblocking Key. Your PUK is provided - part

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Turning the phone on on/off To turn on the phone Press the on/off button on the top of the phone. • Enter your PIN (Personal Identity Number), if you have one for your SIM card. Your PIN is provided by your network operator. If you make a mistake while entering your PIN, delete the wrong number by pressing . If your PIN starts with the same digits as an emergency number, for example 911, the digits are not hidden with an * when you enter them. This is so that you can see and call an emergency number without entering a PIN. See "Making emergency calls" on page 25. Note: If you enter the wrong PIN three times in a row, the SIM card is blocked and the message PIN blocked appears. To unblock it, you need to enter your PUK (Personal Unblocking Key). Your PUK is provided by your network operator. To turn off the phone Press and hold the on/off button at the top of the phone. 6 Getting to know your phone This is the Internet version of the user's guide. © Print only for private use.

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This is the Internet version of the user's guide. © Print only for private use.
6
Getting to know your phone
Turning the phone on
To turn on the phone
Press the on/off button on the top of the phone.
•
Enter your PIN (Personal Identity Number), if you
have one for your SIM card.
Your PIN is provided by your network operator.
If you make a mistake while entering your PIN, delete
the wrong number by pressing
.
If your PIN starts with the same digits as an emergency
number, for example 911, the digits are not hidden with
an * when you enter them.
This is so that you can see and call an emergency
number without entering a PIN.
See “Making emergency calls” on page 25.
Note:
If you enter the wrong PIN three times in a row,
the SIM card is blocked and the message
PIN blocked
appears. To unblock it, you need to enter your PUK
(Personal Unblocking Key). Your PUK is provided by
your network operator.
To turn off the phone
Press and hold the on/off button at the top of the phone.
on/off