unable
There should be no demagnetization of the bus card, because the bus card reads the data through the chip rather than the magnetic strip like the previous bank card. After the use of the bus card for a long time, there will indeed be a situation where the swipe card can not be read, and in this case, you can only return the card to the designated bus card station, and then re-apply for a bus card.
Can not be magnetized, have to go to the bus card magnetized station.
No, we need to go to the subway station for magnetization.