SIM Card Security Use your handset to activate your PIN code (4 - 8 digit number) to prevent unauthorized use of your SIM Card.
When the SIM card Security Function is activated, the PIN Code has to be entered each time the phone is switched ON.
Default SIM Card Security PIN Number: "0000"
If you enter your PIN code incorrectly three times, your SIM card will be blocked. If this happens, please contact PCCW Consumer Service Hotline on 1000 or Business Consumer Hotline on 10088. If you enter the wrong PIN code 10 times, your SIM card will be blocked permanently. You will be unable to use your phone until you purchase a new SIM card.
if rubbish pccw mobile prepaid sim 's PIN code block,cannot unlock via their hotline,but can free unlock via their shop