After completing the eSIM setup on the smartphone I plan to use, the message "Cannot activate eSIM" is displayed.
A: After installing the eSIM, you will see the following message because you cannot receive Korean signals in Japan. However, the eSIM itself has already been set up. Please refer to page 2 of the manual below and activate it.
How to install and activate VOYAGEESIM for Korea (Procedure)
Once you arrive in Korea, you will be able to use the phone as it will pick up KT signals. If the "Out of Service" message appears after you arrive in Korea, please restart the phone several times.
If you would like, please also read the checklist that summarizes the preparations you need to make in advance, such as various settings after purchasing VOYAGEE SIM , and what you need to do after returning home, before you travel.