1. Induction cookers, microwave ovens, televisions, refrigerators and other electrical appliances are surrounded by high magnetic fields, so it is possible to degauss the bank card when it is close. And mobile phones, computers, PDA, magnets, music stars, business communications and other magnetic items together, but also easy to cause degaussing.

2. If the magnetic strips of two bank cards overlap, they are likely to be demagnetized at the same time. Don't store multiple bank cards together, and don't put them back to back, so as to avoid the magnetic strips rubbing against each other.

3. The magnetic hidden buckle of a lady's handbag, the card reader on the bus, the nuclear magnetic resonance instrument and other medical inspection equipment will also cause the bank card to be magnetized.

Magnetic stripe bank card degaussing. At this time, the cardholder needs to bring his bank card and ID card to the bank outlet to apply for a new bank card. Because the magnetic stripe card is mainly attached to the magnetic stripe, wiping cannot be restored, and the chip card is degaussed. At this time, you can gently wipe the chip with an eraser. If it still doesn't work, you need to apply for a new one.