• (1) 請先安裝「HiCOS卡片管理工具(HiCOS_Client.zip)」或「 MAC版元件(HiPKILocalSignServer.pkg)」，並重新啟動您的瀏覽器
Please install「Windows plugin(HiCOS_Client.zip)」or「 MAC plugin(HiPKILocalSignServer.pkg)」first. And reboot your browser.
• (2) 將IC卡插入讀卡機後，按選擇卡片欄位的”▼”，選擇讀卡機後，將讀取卡片資訊，敬請核對。
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) 請輸入舊的PIN碼(若PIN預設值為出生，例如：60年1月1日(國曆年)，輸入舊的PIN碼即為600101)。及輸入新的PIN碼二次(為增加安全性，建議PIN碼輸入以六至八碼的數字加英文字組合，且不為空白)。
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) 完成修改PIN碼作業。
Completing Operation for Change of PIN Code.

※在MOICA網站上執行各種認證操作時，如果出現"網頁錯誤"或按下操作按鈕無反應，請先下載並安裝「HiCOS Client(HiCOS_Client.zip)」。
步驟說明如下：
※Download and install the「HiCOS Client(HiCOS_Client.zip)」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) 安裝Hicos Card Management Tool：請先按下載鏈接「HiCOS Client(HiCOS_Client.zip)」解壓執行文件安裝Hicos Card Management Tool。
Installing the Hicos Card Management Tool: Please press the download hyperlink「HiCOS Client(HiCOS_Client.zip)」and decompress the execution file to install HiCOS Card Management Tool.
• (b) 安裝完成後請重啟電腦，按開始/程序/HICOS PKI Smart Card/HiCOS Card Management Tool/Card Management/Change PIN Code，按照提示修改您的PIN碼。
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 tour PIN code.