The incorrect track encryption of Jinfutong means that the credit card has been degaussed. If the credit card is demagnetized, the customer should first check whether the magnetic stripe/chip of the card is damaged. If the magnetic stripe card is not damaged, you can try to rub the side with the magnetic stripe back and forth on cotton fabric such as jeans or sweaters for about 30 seconds, and then try to swipe the card to see if the magnetism is restored. For chip cards, you can find an eraser and wipe the surface of the chip repeatedly for a few times, and it will probably return to normal use.

Notes

In daily life, it is best not to put cards together with mobile phones, keys and other items, because this can easily cause the card to be degaussed. Also, avoid putting Keep cards and sharp objects together because the magnetic strip of the card can easily be scratched by sharp objects. It is recommended that cards be kept separately from other items. You can buy a card sleeve for the card and put the card in the card sleeve, which can prevent the card from being degaussed to a certain extent.