If the credit card swipe pin has been entered more than the number of times, we usually have to consider whether the password was entered incorrectly or the consumption amount was exceeded.

The analysis is as follows:

Swiping the card shows that the limit of the day is exceeded, which means that the consumption amount on the day exceeds the amount that can be consumed on the credit card. If the number of times the credit card password has been entered exceeds the limit, it means that the password has been entered incorrectly more than 6 times or more, which means the number of times has exceeded the limit.

The credit card cannot be swiped if the amount exceeds the limit. The card cannot be swiped if the amount exceeds the maximum single transaction limit of the day or the maximum limit of the day. Because there are relevant prompts when applying for a card, what is the maximum credit limit of this card and other information.

When the credit limit of the credit card you hold has not been used, the available limit will be reduced with each consumption of the card holder, and will be restored with each repayment of the card holder.

Extended information:

The maximum amount that can be used by a credit card, which includes the credit limit (that is, the maximum overdraft limit of a credit card) and the amount deposited into the credit card. The available credit limit is comprehensively evaluated based on the user's spending power and repayment status. If the credit rating is good and the repayment is timely, the bank will naturally increase the credit limit to encourage the user to spend. So there will be changes.

The calculation method of credit card available limit is: available limit = credit limit approved by the bank - outstanding balance on bills that have not yet been paid - transaction amount that has not been recorded but has occurred - other related interest and fees.

In addition, we also need to understand the credit card swipe pin code. PIN code (PIN1), the full name is Personal Identification Number. It is 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 to 8-digit PIN code must be entered every time the phone is turned on.

When the wrong PIN code is entered three times, the phone will automatically lock the card and prompt you to enter the PUK code to unlock. You need to use the service password to call the operator's customer service hotline. The customer service will inform you of the initial PUK code and enter the PUK code. The PIN will then be unlocked.

Notes

1. When setting a normal password, complex symbols, numbers, and uppercase and lowercase letters will be set. Use a PIN code to log in. The PIN code only requires a minimum of 4 characters, and can use a simple combination of all numbers, which is convenient for daily use.

2. After setting the PIN code, the user can log in to the computer through the PIN code. Even if the PIN code is snooped or leaked, it will not affect the security of other Microsoft application services.

3. The PIN code provides encryption through a chip called TPM, and it is a local password that is only bound to a specific hardware device. Even if a third party knows the Microsoft account and PIN code on the host computer, it will not be able to log in from other devices