Although you purchased an eSIM for Japan, you may encounter issues such as "Cannot add eSIM" or "Cannot install even after scanning the QR code."
The causes are not singular, and various factors such as device settings, network environment, and eSIM usage conditions can be considered.
In this article, we will clearly explain the main reasons why you cannot add a Japan eSIM and the troubleshooting methods you should check in order.
Checklist to Confirm First
| Check Item | Check |
|---|---|
| Using an eSIM compatible device | □ |
| SIM lock is removed | □ |
| Connected to Wi-Fi | □ |
| QR code is scanned correctly | □ |
| OS is updated to the latest version | □ |
| Not reached the limit for adding eSIMs | □ |
By confirming these items, you may be able to resolve many installation issues.
Check if Your Device is eSIM Compatible
Not all smartphones are compatible with eSIM. First, check if the device you are using is an eSIM compatible model.
- Check if the device is eSIM compatible
- Check if the OS is up to date
- Check for any regional restrictions
Check Wi-Fi Connection
Adding an eSIM usually requires an internet connection. Make sure you are connected to a stable Wi-Fi network and try scanning the QR code again.
Check the QR Code
If the QR code is blurry or partially hidden, it may not be scanned correctly. Additionally, some eSIMs may have a limit on the number of times they can be used, so please check the provider's instructions.
If You Still Cannot Add the eSIM
- Restart the device
- Organize unnecessary eSIM profiles
- Check the provider's setup guide
- Check the error message
- Contact eSIM service support
Keeping a record of the error message can be helpful when contacting support.
Frequently Asked Questions
What is the most common reason for not being able to add an eSIM?
Common reasons include using a non-eSIM compatible device, SIM lock, not being connected to Wi-Fi, and QR code scanning errors. First, check the basic settings in order.
Can I add an eSIM without Wi-Fi?
In most cases, an internet connection is required to install an eSIM. Therefore, it is recommended to set it up while connected to a stable Wi-Fi network. For detailed conditions, please check the instructions for the eSIM service you are using.
I get an error when scanning the QR code.
Please check if the QR code is displayed clearly. Also, verify whether you are scanning it using the device's camera or settings screen and if you are following the steps provided by the eSIM service. If the error persists, please contact the provider.
Can I delete the eSIM and add it again?
This varies depending on the eSIM. Some services may not allow reinstallation once deleted. Before deleting, be sure to check the provider's instructions or support.
What should I do if it says "Cannot add eSIM"?
Restart your smartphone and check the Wi-Fi connection, OS update status, and whether the device is eSIM compatible. If the issue persists, noting the displayed error message and contacting support will help facilitate the process.
What if I can add the eSIM but cannot connect?
Adding an eSIM and starting communication may involve separate steps. Check the mobile data connection switch and, if necessary, verify the data roaming settings.
What if I realize I cannot add the eSIM before my trip?
If it is before your departure, you can take your time to review the settings. Try again in a Wi-Fi environment, and if it does not improve, it is recommended to consult the eSIM service support before your trip.
Conclusion
Even if you cannot add a Japan eSIM, many issues can potentially be resolved by checking basic settings and device environments. Before hastily deleting the eSIM, it is important to check each cause one by one.
- Check if the device is eSIM compatible
- Check the status of the SIM lock
- Connect to Wi-Fi and set it up
- Check the QR code and setup instructions
- If it does not improve, contact support
If you can correctly add the eSIM before your trip, you can use the internet immediately upon arrival in Japan. To enjoy your trip with peace of mind, make sure to prepare in advance.
