There are two chips, one contact and one contactless, on your CU Link. A system generated random number is used as the PIN for each CU Link and that number is being stored in both the contact and contactless chips.

Each CU Link carries a different default PIN. To obtain the default PIN of both chips, please login the CU Link Default PIN Enquiry System (http://www.cuhk.edu.hk/culink/pin) with your Staff/Student ID and Campus-wide Email System (CWEM) password.

Location for changing CU Link PIN

You can change the PINs at the designated computer terminals outside CU Link Card Centre. The new PINs should contain 4 to 8 numeric digits. Please remember to change the PIN of both chips.You may change your CU Link PIN at PCs in User Area on 1/F, Pi Ch'iu Building. [MAP]

Remarks: Some door access and payment systems may require users to enter the “#” sign to indicate the end of the PIN.

Forgot your CU Link PIN?

Please visit Help Corner - Forgot / Change CU Link PIN