Security - Sony Ericsson T200c User Manual

Security

You can protect your phone and subscription from
unauthorized use in several ways.
Locking the SIM card
The SIM card lock protects your subscription, but not
your phone itself, from unauthorized use. If the SIM
card lock is on, you have to enter your PIN every
time you turn on your phone. If you enter your PIN
incorrectly three times in a row, your SIM card is
blocked. You need the PUK (Personal Unblocking
Key) which is supplied by your network operator to
unblock it.
To unblock your SIM card
1. PIN blocked appears.
2. Enter your PUK (or PUK2) and press
3. Enter a new four-to-eight-digit PIN (or PIN2) and
press .
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4. Re-enter the new PIN (or PIN2) to confirm and press
.
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48 Security
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Note: If you enter the wrong PUK ten times in a row,
your card is permanently blocked. If this happens,
you should contact your network operator.
To change your PIN
1. Scroll to Settings,
Change PIN,
2. Enter your old PIN and press
3. Enter your new PIN and press
4. Re-enter your new PIN to confirm and press
To turn the SIM card lock on or off
1. Scroll to Settings,
Protection,
2. Select On or Off, enter your PIN and press
Locking the phone
. The phone lock protects the phone against
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unauthorized use if it is stolen and the SIM card is
exchanged. You can change the phone lock code
(0000) to any four-to-eight digit code.
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