What happened when the mobile phone card was degaussed?

1. If your mobile phone can't read the card or detect the SIM card, you can try to put the card in another mobile phone and judge whether it's a card problem or a mobile phone problem by changing the card for the mobile phone.

2. It may be that the card is loose or dirty, so it is not displayed. Try to wipe it with a clean rag. If it still doesn't work, consult local 10086. In some areas, the card has been reissued in different places, but the short message and mobile phone number on the card are gone after the card is reissued.

3. Either the golden finger is oxidized to cause poor contact. In this case, the metal part of the card can be polished with cotton cloth or newspaper. The worst case scenario is that the chip of the card hangs. You can go to the business hall to apply for another one, or the original number, and the original account situation will not change. In addition, there is another possibility-your mobile phone is dead.