My newly reissued student ID card is lost again, but I found the previously lost one. Can I still use the previous card?
Source: https://aca.nccu.edu.tw/en/faqs/%E8%AD%89%E6%98%8E%E6%96%87%E4%BB%B6%E7%94%B3%E8%BE%A6/4572-how-do-i-use-the-easycard-function-on-easy-student-id-cards Parent: https://aca.nccu.edu.tw/en/faqs-1
Once a new student ID card is reissued, the original student ID card has been canceled and cannot be reactivated. Students must apply for a new card.
※For further information, please contact the Registration Section at extension: 63279