Siemens U15 - Manual (Page 146)

145
Security
Unblock the SIM Card PIN Code
If you enter an incorrect SIM card PIN code three times in a row,
your SIM card is disabled and your phone displays the message
SIM Blocked . You need to enter a PIN unblocking key (PUK)
code, which you can obtain from your service provider.
Note: In the following key sequence, each key press must occur
within two seconds of the previous keypress.
Caution: If the unblocking attempt is tried unsuccessfully 10
times, the SIM card is permanently disabled and your phone
displays the message SIM Disabled .
Note: You can open the PIN2 unblocking editor by entering
* * 0 5 2 *
. Use the PUK2 code in place of the
PUK code in the above procedure.
Press To
1
* * 0 5 * open the PIN
unblocking editor
Your phone prompts
you to enter the PIN
Unblock Sequence:
2 PUK code + OK ( + )
+ new PIN code + OK ( + )
+ new PIN code + OK ( + )
unblock the SIM
card PIN features