how to unblock my sim card??

pin碼是由供應商提供，用于Sim卡保密的個人識別碼（PersonalIdentificationNumber）,在"保密設定";開機密碼"開啟此功能之後，手機開機時需輸入pin1碼方可使用，即此密碼是對Sim卡的鎖定。預設值是1234。如果手機密碼和pin1碼同時使用，則先輸入pin1碼，後輸入手機密碼。pin1碼3次輸入錯誤之後將被鎖死，需用puk來解鎖。

puk碼是由供應商提供的pin碼的解鎖碼，是一串無規律的數位。puk十次輸錯，sim卡將永久鎖死，只得更換sim卡。

2007-04-16 20:11:37 補充：
I suggest you know don't try any code now until you have contacted your service provider.

只要機主本人打電話去電訊公司度問，
專人就會話你知～

No one will know your PUK code except your service provider
Don't try to enter any PUK code now.
Please contact your service provider to get your PUK code.
After you have enter the right PUK code,
your sim will be unblocked.