How to use : 3G Smartphones

This guide describes settings that must be configured on 3G Smartphones for use overseas and how to use these devices.

Before departing

<If necessary> Airplane Mode setting

If necessary, set your device to Airplane Mode during your flight.

After arriving

How to access

設定(Settings) → 無線とネットワーク(Wireless & networks) → モバイルネットワーク(Mobile networks) → ローミング設定(Roaming) → エリア設定(Area Settings) → 海外(GSM) (Overseas (GSM)) → Select 定額対象事業者(eligible carrier)


* Depending on the model, some menu names and procedure may differ. See the user manual for more information.

* If you are still unable to use even after setting the above, turn the power off and on, and check again.

You should now be able to use.

Confirm eligible carriers here by entering the service area and model.


If using packet communication on a 3G Smartphones, manually select an eligible carrier at your travel destination. With automatic selection, there is a risk of connecting to a carrier that is not covered, resulting in higher packet communication charges.

How to check carriers

3G Smartphones

Slide the pict area (where the signal strength, battery level, and time are displayed) down to check the connected carrier.


Slide the pict area down.


Check the connected carrier.

  • Alternatively, you can check the connected carrier by selecting the "MENU" button → 設定(Settings) → 端末情報(Device info) → Status → "ネットワーク(Network)".
  • You can also check if the service is available from the SMS you receive when arriving at your travel destination.

After returning

Restore the settings for use in Japan

After returning, switch your area settings to "Japan" mode to use.

  • Some of the displayed screens may differ depending on your device.

3G Smartphones

設定(Settings) → 無線とネットワーク(Wireless & networks) → モバイルネットワーク(Mobile networks) → ローミング設定(Roaming) → エリア設定(Area Settings) → Select 日本(Japan)

  • By phoneOpen 9:00 – 20:00

    • English

      0120-959-472(Toll Free)

    • Portuguese

      0120-959-473(Toll Free)

    • Chinese

      0120-959-476(Toll Free)

    • Korean

      0120-959-478(Toll Free)

    • Japanese

      157(Toll Free)from au phones

      0077-7-111(Toll Free)

  • By e-mailSend e-mail