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2.4. Security Password
PIN
PIN (Personal Identification Number) is used to prevent your SIM
card from being used illegally. PIN is usually provided with SIM card
together. If you input wrong PIN for continuous three times, please input
PUK to unlock it. Please contact with network operations company for
more details.
PIN 2
You need to input PIN2 when entering some functions (such as call
charge); if you input wrong PIN2 for continuous three times, you need
to input PUK2 to unlock it. Please contact with network operations
company for more details.
PUK
When changing the locked PIN, you need to input PUK (Personal
Unlock Key). PUK is provided with SIM card together. If it is not
provided, please contact with your service provider. If you input wrong
PUK for continuous ten times, the SIM card can’t be used again. Please
contact with your service provider to buy new card. You can’t change
PUK. If you lose the code, please contact with your service provider.
PUK2
When changing the locked PIN2, you need to input PUK2. If you
input wrong PUK2 for continuous ten times, you can’t use the functions
that need PIN2. Please contact with your service provider to buy new
card. You can’t change PUK 2. If you lose the code, please contact with
your service provider.
