What is the PIN code?

The PIN password refers to the personal identification password of the SIM card. It is a security measure to protect the SIM card and prevent others from stealing the SIM card. We can enable the power-on PIN code, so that we have to enter a 4-8 digit PPIN code every time we turn on the phone.

#The operating environment of this article: windows10 system, thinkpad t480 computer.

Let’s briefly introduce the PIN code:

PIN code (PIN1) is a telecommunications term, the full name is Personal Identification Number, which refers to the personal identification password of the SIM card.

The PIN code of the mobile phone is a security measure to protect the SIM card and prevent others from stealing the SIM card. If the power-on PIN code is enabled, a 4-8 digit PIN code must be entered every time the phone is turned on.

When the PIN code is entered incorrectly for more than three times, the card will be automatically locked for protection. To unlock, you need to use the PUK code to call the operator's customer service hotline.

Its function:

PIN1 code is a personal identification code. It is a storage unit inside the SIM card and is set through the mobile phone. When turning on the phone, you will be asked to enter the PIN1 code. Entering the PIN1 code incorrectly three times will result in a "card lock" phenomenon. At this time, the operator needs to provide the PUK code and enter it on the phone keyboard to unlock it. If you enter the PUK code incorrectly 10 times, the card will be "burned". You must bring the valid ID of the machine owner to the business hall of the operating network to get a card replacement.

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