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C h a p t e r
PIN and PUK
PIN Code
PIN code could prevent your UIM card from illegal use. When PIN lock is on, you should enter the PIN
code when powering on the handset again. The network provider offers you PIN code (four to eight digits).
You should change PIN code as soon as possible for security.
PUK Code
Consecutive inputting wrong PIN code for three times can cause locking of UIM card. To unlock, you
need PUK code.
Notes:
PIN code and PUK code may be offered together with the UIM card. If not, please contact your network
service provider. Please change default PIN code to your own as soon as possible.
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