• (1) Please install「Windows plugin」or「MAC plugin」first. And reboot your browser.
• (2) Insert your IC card into the card reader. And select the corresponding IC card via ”▼” icon. The system will automatically shows the information of your IC card.
• (3) Enter the original PIN code (if your PIN code was set using your birthday, for instance, 1 January 60 (Chinese calendar year), your original PIN code should be 600101). And enter your new PIN code twice (to enhance security, you are recommended to use a combination of numbers and English letters ranging from six to eight characters and no spaces).
• (4) Completing Operation for Change of PIN Code.

※Download and install the「HiCOS Client」if "Web Page Errors" appears or no response when pressing the operation button, while enforcing the various certification operations on the MOICA website.
Steps are described as follows:

• (a) Installing the Hicos Card Management Tool: Please press the download hyperlink「HiCOS Client」and decompress the execution file to install HiCOS Card Management Tool.
• (b) Please reboot your computer after the installation and press Start / Programs / HICOS PKI Smart Card / HiCOS Card Management Tool / Card Management / Change PIN Code，do as the instructions to change your PIN code.