Question 1

Do I need to fill out an application to purchase Nippon SIM?

Accepted Answer

No application is required.

Question 2

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

Accepted Answer

Cannot be charged.

Question 3

How long does the SIM card expire?

Accepted Answer

The expiration date printed on the SIM package is the last usage start date. Please be sure to start using it by this date. If you start using it until this date, you can use it with the expiration date stated on the package.

Question 4

How long is the SIM card used?

Accepted Answer

The available period is as follows.・ The product number is DHA-SIM-023 / 025/043/057/088: The usage start date (1st day) is the same day, and it can be used during the expiration date stated on the package.・ Other than the above: The usage start date is from midnight the next day, and it can be used during the expiration date stated on the package.

Question 5

Can I send a call or SMS with a prepaid data SIM card?

Accepted Answer

Calls and SMS transmissions are not available.

Question 6

Nippon SIM for Japanに電話番号は付帯しますか？

Accepted Answer

Nippon   SIM for Japanはデータ通信専用となります。音声通話用の電話番号は付帯致しません。

Question 7

Nippon SIM for JapanでSMSの使用はできますか？

Accepted Answer

Nippon   SIM for Japanはデータ通信専用となります。SMSはご使用頂けません。SMSの送受信、アプリのSMS認証等にはご利用頂けません。

Question 8

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

Accepted Answer

The DoCoMo line Nippon SIM for Japan can be used in the NTT DoCoMo area throughout Japan. Please see the NTT DoCoMo website for details.    https://www.nttdocomo.co.jp/area/ Softbank line Nippon SIM for Japan It can be used in Softbank areas all over Japan. Please see the SoftBank website for details. https://www.softbank.jp/mobile/network/area/map/

Question 9

What bands (frequency bands) can be used with the SIM card?

Accepted Answer

The following bands are available.・ DoCoMo line:4G / LTE: Band1 (2.1GHz) / Band 3 (1.8GHz) / Band 19 (800MHz) / Band 21 (1.5GHz) / Band 28 (700MHz) / Band 42 (3.5GHz)3G / W-CDMA: Band 1 (2.1GHz) / Band 6 (800MHz) / 19 (800MHz)・ Softbank line:4G / LTE: Band1 (2.1GHz) / Band 3 (1.8GHz) / Band 8 (900MHz) / Band 41 (2.5GHz)3G: Band 1 (2.1GHz) / Band 8 (900MHz)

Question 10

Is tethering available?

Accepted Answer

You can use it unless it is stated in the package that it cannot be used. However, if you are using an app-free product, communication by tethering may not be subject to count-free due to system restrictions.

Question 11

What is APN?

Accepted Answer

APN (access point name) is a setting that allows the device to connect to the DHA mobile service.

Question 12

What is SIM Free (SIM unlock)?

Accepted Answer

SIM-free refers to devices whose communication is not locked by the carrier from which you purchased the product.Please follow the procedure from My docomo, My au, or My Softbank to unlock the SIM lock.NTT DoCoMo:  https://www.nttdocomo.co.jp/support/unlock_simcard/ au:  https://www.au.com/support/service/ mobile / procedure / simcard / unlock / Softbank:  https://www.softbank.jp/support/faq/view/25919 It can be canceled at each company's shop other than online. Please check each company's website for SIM unlock fees at the shop.

Question 13

What is a SIM-free terminal?

Accepted Answer

The terminal is not locked by the SIM card carrier. Since you can use any SIM card, you can freely select the SIM card to use from carriers (or cheap SIM, prepaid SIM) in Japan.To use communication with our SIM card, APN setting is required.

Question 14

What devices are available?

Accepted Answer

Question 15

I have a docomo smartphone. Can I use Nippon SIM for Japan without unlocking the SIM?

Accepted Answer

If you purchase a product with a SIM number that starts with AX / GD or DN, you can use your doCoMo smartphone without unlocking the SIM.Please check the product description in advance or contact customer support if you are unsure.

Question 16

Can I use it on my device (smartphone, tablet, router)?

Accepted Answer

(1) When using the following combinations, the device must be unlocked from the SIM lock.・ When using various Nippon SIMs with SoftBank / au terminals.･ When using a full MVNO line product with a doCoMo terminal.(2) Please check the supported frequencies of your device before using.Nippon SIM uses DoCoMo's network and supports the following frequencies.・ 4G / LTE: Band 1 (2.1GHz) / Band 3 (1.8GHz) / Band 19 (800MHz) / Band 21 (1.5GHz) / Band 28 (700MHz) / Band 42 (3.5GHz)・ 3G / W-CDMA: Band 1 (2100GHz) / Band 6 (800MHz) / Band19 (800MHz)Platinum band 4G / LTE: Band 19/28, 3G: Band 6 is supported, the easier it is to connect.* Only the product model number DHA-SIM-088 uses the SoftBank network, and the supported frequencies are 4G / LTE: Band 1 (2100GHz) / Band 3 (1800GHz) / Band 8 (900MHz) / Band 28 (700MHz) / Band 41 (2500GHz); 3G / W-CDMA: Band 1 (2100MHz) / Band 8 (900MHz).(3) APN setting is required when using. Click here for how to set the APN for each terminal. https://www.nipponsim.jp/ap For routers, it is necessary to add or edit the APN profile. For details, see the instruction manual of your device.

Question 17

eSIMとは何ですか？

Accepted Answer

eSIMとはスマホの端末内にSIMが内蔵されている「本体一体型のSIM」のことです。物理SIMカードとの違いは、物理SIMカードの都度購入が不要となりオンライン上で完結できること、物理SIMの差し替えが不要でSIMや機器の損傷リスクも少ないことです。 ご購入後はQRコードをスキャンし、eSIMプロファイルをインストールするだけでご使用頂けます。

Question 18

eSIM非対応端末ですが、間違えてeSIMを購入してしまいました。

Accepted Answer

誤ってご購入された旨、お問い合わせフォームより弊社までご連絡下さい。同等の物理SIMと交換させていただきます。 なお、交換品の配送料はお客様御負担となりますため、予めご了承ください。

Question 19

I can't communicate. What should I do?

Accepted Answer

Please check the following points.1) Is your device SIM-free?2) Is an error message displayed?3) Is the antenna icon displayed at the top of the device? If it is not displayed, reinsert the SIM card. If it is not displayed (or NO SIM is displayed) even after reinserting it, please contact our customer support.4) If it is a dual SIM compatible device, is it set in slot 1? If it is not set in slot 1, insert the SIM card.5) For Android devices, double check the APN settings and enter the correct settings (especially if you have entered uppercase English letters and extra spaces). For iOS devices, remove the installed profile and reinstall.6) For Android devices, change the authentication type from CHAP to PAP, save it, and then try to connect. If you cannot connect, change from PAP to CHAP and restart the terminal if necessary.7) Make sure that the data communication switch is ON.8) Turn "Airplane mode" on and then off.9) Reboot the device.10) If the above does not help, please contact our customer support.

Question 20

Does the SIM card need to be activated (opening process)?

Accepted Answer

No need. You can use the SIM card as soon as you set it and set the APN.

Question 21

Please tell me how to set APN for iPhone / iPad.

Accepted Answer

Please check the iOS APN settings on the APN settings page. https://www.nipponsim.jp/ap

Question 22

Even if you set the SIM on your iPhone, NO SIM is displayed. What should i do?

Accepted Answer

(1) Tap "Settings" → "General" → "Information".(2) If there is a "career update", a message will be displayed, so set it.(3) Tap "Settings" → "General" → "Software Update".If the latest version of iOS is not installed, a message will be displayed, so update it. Please back up via iTunes when updating.(4) Tap "Settings" → "General" → "Reset" → "Reset network settings".Initialize the network settings.(5) Tap "Reset network settings", enter the passcode, and execute the reset to reset the Wi-Fi password, Bluetooth registration record, VPN settings, and APN settings.

Question 23

"The profile could not be installed" is displayed on the iPhone. What should i do?

Accepted Answer

Please try the installation after deleting the installed profile.To delete a profile, go to Settings → General → Profiles, tap the profile, and tap “Delete Profile”.

Question 24

4G LTE communication is not possible. What should I do?

Accepted Answer

Check the following settings.(1) Does your device support 4G / LTE? For 3G-only devices, it will be used in 3G.(2) Do you support one or more bands (frequency bands) provided by DOCOMO?If there are few compatible bands, communication may be slow.(3) Does your device support dual SIM cards? Insert the SIM card in slot 1 as some devices may support 4G LTE only in slot 1.(4) Is the 4G LTE connection signal displayed at the top of the screen?If you see H or 3G, you are not connected to a 4G LTE network. Please check the following points.・ Check if the APN setting is correct.-Try turning OFF / ON or restarting Airplane mode.(5) For Android, check that the input items in the APN settings are correct. For iOS (iPhone / iPad), go to Settings> General> Profiles, delete any old profiles, and install again.

Question 25

Please tell me how to set up a Wi-Fi router.

Accepted Answer

APN setting is required. For the setting method, refer to the instruction manual of your terminal.

Question 26

I was asked to enter MCC and MNC on my device. What should I enter?

Accepted Answer

On Android devices with earlier OS versions, you may be prompted to enter the SIM card carrier information because it is not registered in the system.Please try updating the Android OS version to the latest version as it may solve the problem.If the same problem occurs after the update, enter 440 for MCC and 10 for MNC for Nippon SIM for Japan (NTT DoCoMo). For Nippon SIM for Japan (SoftBank), enter 440 for MCC and 20 (or 4) for MNC.For other SIM cards, please contact customer support.

Question 27

I am using a dual SIM terminal. Which slot should I insert the SIM card in?

Accepted Answer

Set it in the SIM1 slot.

Question 28

I have set the APN of Nippon SIM for Japan roaming SIM (Softbank 8GB / 15GB / 50GB) to NEC Aterm (MP02LN / MP02LS / MP04LN / MP05LN), but the message of 3G error (33) is displayed.

Accepted Answer

1) Connect your smartphone or computer to NEC Aterm via WiFi.   2) Open the browser on your smartphone or computer.   3) Enter 192.168.179.1 or www.aterm.jp, and then log in to the setting screen.   4) Click Basic Settings> Access Point Name (LTE / 3G) on the left panel to set (edit) APN. Also click on International Roaming Settings.

Question 29

海外でeSIMを購入しましたが、出発前に事前にインストールしても大丈夫ですか？

Accepted Answer

日本に到着後に設定してください。海外で日本国内用のeSIMを事前インストールすると、到着後にご利用頂けない場合がございます。その場合はサポート対象外となりますので、ご注意ください。

Question 30

eSIMのQRコードは複数回スキャンが可能ですか？

Accepted Answer

eSIMのQRコードは一回のみスキャンができます。２回目以降は無効となりますのでご注意ください。

Question 31

eSIMのQRコードは再発行できますか？

Accepted Answer

eSIMのQRコードは再発行できません。

Question 32

eSIMインストール中にトラブルが発生しました。どうすればよいですか？

Accepted Answer

弊社サポートページよりフォームにご入力の上、ご連絡ください。なお、インストールしたQRコードは削除しないでください。

Question 33

Can I exchange or return the purchased SIM card?

Accepted Answer

We do not accept exchanges or returns of purchased SIM cards.

Question 34

Is it possible to extend the SIM card usage period?

Accepted Answer

Cannot be extended.

Question 35

Will I be notified when the SIM card data is exhausted or near the expiration date?

Accepted Answer

No.

Question 36

Is there a limit to the amount of 4G / LTE data that can be used?

Accepted Answer

For the standard version and app free plan, there is no limit on the amount of data used per day.See the product page for unlimited plans.However, from the viewpoint of fairness of data communication usage (FUP, Fair Usage Policy), communication may be restricted to users who perform a large amount of communication in a short period of time.   In addition, there is a condition to shift to low speed for each product. See the product packaging description for details.

Question 37

The data speed is slow. Why?

Accepted Answer

Data speed fluctuations slow down in places and times or in crowded or poorly received areas. When the amount of data of the purchased plan is consumed, it will enter the low speed mode and operate in the low speed mode until the end of the valid period.* The service of the 90days / 180days plan will end when the capacity of the plan is consumed.

Question 38

Please tell me how to check the amount of used data.

Accepted Answer

(1) You can check the rough capacity from the setting items. It may differ from the actual usage on the system.・ For iOS: Settings> Mobile communication> Main line mobile data communication: This billing period (system service)・ For Android: Settings> Mobile data> Data usage(2) Please contact support with your SIM card number (020xxxxxxxx number and number starting with AX / DN / GD).

Question 39

The antenna icon is not displayed. What should i do?

Accepted Answer

Reinsert the SIM card. If it doesn't improve, make sure mobile data is turned on.If you still do not see the antenna icon, please contact customer support with your SIM card number.

Question 40

"NO SIM" is displayed. What should i do?

Accepted Answer

Please reset the SIM card. If it doesn't improve, make sure mobile data is turned on.If NO SIM is still displayed, please contact customer support with your SIM card number.

Question 41

In what language can I get support?

Accepted Answer

Support is available in Japanese, English and Chinese.

Question 42

Where can I get support if my SIM card isn't available?

Accepted Answer

a) Check with the support center of the store where you purchased the SIM card. Follow the setup instructions. After resetting, please check if it can be used.b) Contact the support service at the store where you purchased the product.If you need our support after trying a) and b) above, please contact us by email with the following information.1) Your name2) Address or Japanese address for the next 3 days3) Your phone number (overseas number that can be accepted) or SNS account.4) Device brand name and model name5) Where you purchased your SIM card6) Name of prepaid SIM card7) Phone number and card number printed on the prepaid SIM card (0x0-xxxx-xxxx; AX, GD or DN xxxxxxxxxxxx)8) Symptoms of the problemSupport email: support@nipponsim.jpWe will get back to you within 24 hours (as soon as possible).

Question 43

Is it necessary to return the SIM card after use?

Accepted Answer

Not required. Please discard it by yourself.

Question 44

"Invalid SIM" and "No SIM card inserted" are displayed. What should i do?

Accepted Answer

Please check the following points and try.1) Make sure your device is SIM-free or SIM-unlocked. 2) Tap "Settings" → "General" → "Information".3) If there is a "Carrier Update", a message will be displayed, so set it.4) Tap "Settings" → "General" → "Software Update".If the latest version of iOS is not installed, a message will be displayed, so update it. When updating, please back up via itunes.5) Tap "Settings" → "General" → "Reset" → "Reset network settings".Initialize the network settings.6) Tap "Reset network settings", enter the passcode, and execute the reset to reset the Wi-Fi password, Bluetooth registration record, VPN settings, and APN settings.If you have tried the above and the problem persists, please contact customer support.

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