Asus AST21 Basic Manual page 44

• PIN code is "1234" and PIN code entry was set to not
be required at the time of purchase. You can change
PIN code to any four- to eight-digit number, and set
the PIN code entry to be required as necessary.
■ PUK code
In case the PIN code is locked, you can unlock it by
entering the PUK code.
• PUK code is an eight-digit number given at the time of
purchase, which is printed on the back side of the
plastic card on which your au Micro IC Card (LTE) is
attached.
• After entering the PUK code, you need to set a new
PIN code.
• If the PUK code is incorrectly entered ten times
consecutively, contact an au shop, PiPit or Customer
Service Center.
• "PIN code" is not reset by initializing the product.
42 Safety precautions