Sony Ericsson W200C - Manual (Page 72)

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71
Codes do not match
When you want to change a security code you have to
confirm the new code by entering exactly the same code
again.
PIN blocked/PIN2 blocked
To unblock % 64 SIM card lock.
PUK blocked
Contact your network operator.
Phone locked
The phone is locked. To unlock the phone % 66 Phone
lock.
Phone lock code
The phone lock code is required % 66 Phone lock.