How to void the bank card?

Bank cards are generally invalid because the cards are demagnetized. After failure, you can bring your ID card to the account opening branch to change it.

Card replacement process:

Prepare expired old bank cards, cardholder ID cards and 5 cash to 20 yuan;

At the issuing bank or savings office, take the number first and queue up;

After waiting for the call, take the prepared documents and money to the counter;

Inform the teller that the bank card is expired, and give the expired bank card to the teller;

At the same time, the ID card should also be given to the teller;

Fill in the business application form and pay the handling fee of 5- 10 yuan;

Sign the confirmation form, get a new card and get your ID card back.

Extended data:

The strong magnetic field generated by high-frequency electromagnetic waves will magnetize the credit card, which will disorder the recorded information and lead to the invalidation of the bank card.

The recorded information of bank cards and bankbooks are stored on the magnetic stripe on the back. The strong magnetic field generated by high-frequency electromagnetic waves generated when the mobile phone works will magnetize the credit card, making the recorded information disordered, thus leading to the invalidation of the bank card.

At the same time, some people put mobile phones, bank cards and other items together in their bags, which can easily lead to the bank cards being "degaussed". In addition, if the magnetic strips of two bank cards overlap, they are likely to be demagnetized at the same time.

In addition, some medical inspection equipment such as the magnetic hidden buckle of ladies' bags, the card reader on the bus, and the magnetic vibrator will also cause the bank card to be magnetized.

It is suggested to use the card sleeve, which can effectively prevent the magnetic stripe from wearing, but it can't prevent degaussing. Although the ferrule is an insulator, it cannot stop the strong magnetic field.

Baidu encyclopedia-card degaussing

Baidu encyclopedia-degaussing