5 月 18 日（星期三）起，第一代八達通持卡人逢出、入閘、增值時
將聽到特別聲響，並見到有關字句，以提示乘客到「八達通服務站」換卡
使用八達通卡時，亦必須留意閘機螢幕的顯示
「八達通服務站」地點：
metroride.hk/OSPList
From 18/May (Wed),
a new tone will be played when passing through ticket gates, add value or enquire the remaining value with the 1st generation Octopus . This is to remind you to replace their cards from any Octopus Service Point
Holders must follow the instruction displayed on ticket gates’ screen to avoid any abnormality when using these cards
List of Octopus Service Points:
metroride.hk/OSPList