AT&T Z331 - Manual (Page 64)

PIN Codes
A.PIN.code.is.the.personal.identification.code.used.by.the.SIM.card..Its.purpose.is.
to.avoid.illegal.use.of.your.SIM.card..The.correct.PIN.code.should.be.entered.when.
the.new.phone.is.first.turned.on,.otherwise.the.phone.will.only.be.able.to.make.
emergency.calls.
•. .For.a.new.card,.the.default.code.is.supplied.by.the.service.provider.
•. .From.idle.mode,.select.Menu.>.Settings.>.Security.>.Activate security codes.>.
PIN code.to.enable.or.disable.the.PIN.code.
•. .From.idle.mode,.select.Menu.>.Settings.>.Security.>.Change security.>.PIN
code.to.change.the.PIN.code.
•. .If.you.enter.the.wrong.PIN.code.three.times.in.a.row,.the.phone.will.lock.the.SIM.
card.and.prompt.you.to.enter.a.PUK.code.to.unlock.it.
Notes:
If.you.change.the.PIN.code,.please.remember.the.new.number.
PIN2.is.needed.for.some.settings..Use.the.same.procedure.as.for.the.PIN.code.
PUK Codes
A.PUK.code.is.the.unlock.code.for.the.SIM.card..When.the.SIM.card.is.locked,.you.
have.to.enter.the.correct.PUK.code.and.then.enter.the.new.PIN.code..The.SIM.
card.can.then.be.used.normally.
•. .A.PUK.code.may.be.supplied.with.a.new.card..Contact.your.service.provider.for.
more.information.
•. .A.PUK.code.can.only.be.entered.10.times.in.a.row..If.you.enter.the.wrong.PUK.
code.more.than.10.times,.the.SIM.card.will.be.locked.indefinitely.
Note:.If.a.PUK.code.is.supplied.with.the.new.card,.please.store.it.safely.
58 Settings