FAQ｜JETeSIM

Is it possible to charge the SIM card (increase the amount of data)?

It's possible.

What is the validity period of my SIM card?

It depends on the plan you purchase.

Does this Japan SIM come with a phone number?

This SIM for Japan is for data communication only.
A phone number for voice calls is not included.

Can I use SMS to Japan with this SIM?

This SIM card for Japan is for data communication only. SMS cannot be used.
It cannot be used for sending or receiving SMS, SMS authentication for apps, etc.

Please tell me the areas where the SIM card can be used.

This SIM for Japan can be used on the Docomo network in NTT Docomo areas throughout Japan.
For more information, please visit the NTT Docomo website.
https://www.nttdocomo.co.jp/area/

What frequency bands can the SIM card use?

The available bands are as follows:
DoCoMo line：4G / LTE:：Band1（2.1GHz）/Band3（1.8GHz）/Band19（800MHz）/Band21（1.5GHz）/Band28（700MHz）/Band42（3.5GHz）3G / W-CDMA：Band1（2.1GHz）/Band6（800MHz）/19（800MHz）

Can I use tethering?

Yes, you can use it unless there is a statement on the package that it cannot be used.
However, if you are using an app-less product, communication via tethering may not be counted free due to system restrictions. Please be careful.

What is an APN?

An APN (Access Point Name) is a setting that allows your device to connect to DHA mobile services.

What is an eSIM?

An eSIM is a smartphone device with a built-in SIM.
The difference with a physical SIM card is that you don't need to purchase a physical SIM card each time you need to use it, and you don't need to replace the physical SIM, so there is less risk of damaging the SIM or device.
After purchasing it, you can use it just by scanning the QR code and installing the eSIM profile.

I accidentally activated it before the date I wanted to start using the service. What should I do?

We cannot accept any changes to the validity period or capacity after purchase.

Where can I check if my device is compatible?

Please check here.

I deleted my eSIM profile, what should I do?

Once deleted, you will need to purchase it again.
Please purchase.

Can I switch between high and low data rates?

you can't.

What happens if the subscription period for my purchased plan expires?

If the usage period expires, you will no longer be able to use the data even if you have remaining data capacity.

Can the period be extended?

you can't.

I am not receiving emails.

The email will be sent from "mail@jet-esim.jp". Please check your spam folder as it may have arrived there.

Unable to install.

See AI Chat or setup instructions or videos.

Can't activate.

See AI Chat or setup instructions or videos.

I have completed activation but I cannot communicate.

Please perform APN settings.

Can I issue a receipt?

It will be sent to you via email when you purchase the eSIM.
Please check. We cannot reissue it.

Can I use it in countries other than Japan?

Only available in Japan.

How soon can I start using the service after applying?

If you are in Japan, you can start the service in a few minutes.
However, you must configure the eSIM settings yourself.
It will open in approximately 10 minutes.

FAQ

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