JB Voice SIM

【 iOS Device】

Dial【＊#06#】to open the 「device info」screen.
➔If 「EID」is displayed, you can use eSIM.
➔If only “IMEI” is displayed, please 🌐purchase a SIM card.
📢Many iPhones purchased in China, Hong Kong, and Macau do not support eSIM.

【 Android Device】

The operation method may vary depending on the Android model.
For example, on the Galaxy A55
“Settings” ➔ “About phone” ➔ “Status information”
➔ if “EID” appears on the screen then eSIM is supported.
➔If only “IMEI” is displayed, 🌐purchase a SIM card.

【 iOS Device】

「settings」➔「General」➔「About」➔「Carrier Lock」 ➔No SIM restrictions

【 Android Device】

You cannot determine this directly from the mobile phone. Please check with the place of purchase or the carrier you have a contract with.
SIM lock regulations vary by country. In Taiwan, most phones are not SIM-locked.Devices purchased in countries like Japan or the United States are more likely to have SIM lock issues.
📢If you have used SIM cards from different countries or carriers, the device is likely not SIM-locked.

【 iOS Device】

🌸View Used Mobile Data
“Settings” ➔ “Cellular”
➔ “Current Period” shows the total mobile data usage for the current period.
Scroll down to see the mobile data usage for individual apps.

🌸Reset Statistics Before Viewing
“Settings” ➔ “Cellular”➔ scroll to “Reset Statistics” to reset the mobile data usage for the “Current Period” to 0. 📢If you want to view the mobile data usage for a different SIM, please first switch the “Cellular Data” SIM.

【 Android Device】

The Android system may have different screens and operation methods depending on the brand and model. Here, we will explain how to check mobile data usage using the Galaxy A55 as an example.

🌸View Data Usage
“Settings”➔”Connections”➔”Data usage”
You can view the total amount of mobile data used in the current billing cycle.

🌸Set Billing Cycle Before Viewing Statistics
“Settings”➔”Connections”➔”Data usage”➔”Billing cycle and data warning”➔to reset the mobile data usage statistics.

🅰️ Please refer to the common questions in the “Pre-purchase Check” such as “How many GB are needed in one day?“, “How long can 1GB last for internet usage?” and “How to check my mobile data usage?” to make your decision.

📢 When the high-speed data you purchased runs out, your speed will not be cut off. Instead, it will be reduced to 200kbps, and you can still send text messages normally.

📢 You can always add more data capacity through this website. For urgent requests on holidays or nights, please contact customer service for immediate assistance.

The signal strength is mainly affected by the telecommunications company’s network infrastructure. The factors that influence the signal strength are as follows:

The distance to the base station
Presence of obstacles
Presence of signal interference
Antenna performance
Frequency band Since our company’s eSIM and SIM cards are products from Japan’s local docomo telecom company, using the same signal, the speed of our eSIM and SIM cards are the same. As for other international roaming eSIMs, there may be cases where roaming is done through smaller telecom companies, leading to significant differences in speed and coverage.

🅰️Our company uses the services of Japan’s largest mobile communications company, docomo, which has the widest coverage.
You can use the following website to enter an address and check the 4G/LTE service coverage:
👉docomo Mobile Network Service Area Search

【Reason 1】Even within the service area, poor signal reception can occur due to obstacles or radio interference. Try moving to a slightly different location and test again.

【Reason 2】If you are using multiple SIM cards or eSIMs at the same time, with all of them set to “on” and set to automatically switch mobile data, it may automatically switch to a SIM with poor signal reception, causing it to be unusable. It is recommended to set the mobile data to your company’s SIM and turn off the automatic switching feature. If you want to use a different SIM, manually switch the mobile data to that SIM.

🅰️After updating to iOS 17, there may occasionally be an issue where the signal bars do not display the signal strength, but this does not affect reception. You can try the following methods:

• Restart the iPhone
• Toggle Airplane Mode on and off
• Turn mobile data off and on
• Check for software updates

🅰️ 3-in-1 SIM cards (nano, micro, standard).
There are notches around the IC chip for nano, micro, and standard sizes. Use your finger to push out the required size from the back.
Be sure to handle the IC chip carefully when removing it to avoid damaging it.

🅰️【Available only in Japan】
It will take approximately 5 to 7 business days after purchasing and uploading the identity verification documents.

🅰️The first month is calculated from the date the SIM card is mailed to the contract address or handed over in person, until the end of that month. The fee is not calculated on a daily basis.

🅰️JSince JB voice SIM does not offer an online real-time data usage query service, please use the statistics function on your smartphone or tablet device. Please refer to the “How to check your mobile data usage” in the common questions of the JB series.

🅰️We’re sorry, but it is not possible to add data or change the monthly pricing plan for a voice SIM. Even if the high-speed data is used up, the connection will not be cut off—you can continue to use the internet at unlimited 200 kbps.

🅰️With JB voice SIM, you cannot choose your phone number. The phone number will start with 080 or 070.

🅰️ International calls cannot be made. Please use internet calls such as LINE.

🅰️You can make free emergency calls to: 110 (Police), 118 (Coast Guard), and 119 (Fire Department).

🅰️You can make calls to 0120/0800 toll-free numbers.

🅰️Additional charges such as call fees and SMS will be sent via email with a payment link around the 20th of the month following the usage month. If payment is not made by the due date, the service will be suspended.

🅰️The initial settings are as follows:
The network password : “1234”
The PIN code is : “0000”

🅰️In case of loss or theft, please immediately request a temporary suspension through our official LINE account. If found, you can request to reactivate the SIM.
Additionally, we recommend reporting the loss to the police station immediately.
If you need to reissue the SIM, it will take approximately 5 business days, and a reissue fee of 3000 yen (excluding tax) will apply.
Please submit the reissue request via our official LINE account.
When applying, please specify:

• Contract phone number
• Contract holder’s name
• Contract holder’s email

🅰️We apologize, but it is not possible to directly change the order details. Please contact our company through the official LINE account, and we will assist you with making the changes.

🅰️JB eSIM & JB SIM Card
You can cancel the refund if the 【eSIM Activation URL】 has not been sent yet or if the physical SIM card has not been mailed.
To cancel, please contact our company via the official LINE account (@913athnc), input “Request for refund cancellation,” and provide your ①order number ②name of the purchaser ③purchaser’s email address. Our company will process the cancellation as soon as possible.
If you cannot use LINE, please contact our company via email (info@jbrg.jp).
📢If the cancellation is requested due to the customer’s reason, a 5% handling fee will be deducted by the credit card company. If the cancellation is due to our company’s reason, a full refund will be provided.

🅰️JB Voice SIM
Since a Japanese phone number will be issued after purchase, refunds cannot be canceled. If there are special reasons, please inquire through the official LINE account.

🅰️JB eSIM
Since our products allow customers to choose when to issue the QR code, please make sure to check that your flight is not canceled or delayed before proceeding with the “issue” process. As long as the issuing process is not completed, you can use it later. If you accidentally delete the 【eSIM Activation URL】 for activation, you can request to have it resent via the official LINE account.

🅰️JB SIM Card
As long as the SIM card is not inserted into a phone or tablet and does not receive the docomo signal in Japan, it will not be activated. You can use it later.

🅰️Voice SIM Card
If you have already reserved the issuance of a phone number abroad, it cannot be canceled or refunded. If you have canceled your trip to Japan, please contact us through the official LINE website.

🅰️By selecting the Japanese SIM for mobile data and turning off the automatic data switch function, you will basically not use the original SIM and still be able to receive SMS. Receiving SMS from Taiwan is free, but please contact your carrier for other countries. If you don’t want to receive SMS or are concerned about high roaming charges, you can temporarily turn off the original SIM by following the steps below and re-enable it after returning home.

■iPhone
【Settings】 ➡【Cellular】 ➡【Select the label of the original SIM】 ➡ Turn off the option “Turn on this number.”

■Android
The operation method may vary depending on the brand.
※Samsung
【Settings】 ➡【Connections】 ➡【SIM card manager】 ➡【Select the label of the original SIM】 ➡ OFF.

◆ If you are using multiple SIM cards or eSIMs at the same time, please ensure that the APN you set is for the SIM card or eSIM you intend to use. Many people accidentally set the APN for a different SIM card or eSIM.

◆ After setting the APN, please restart your device and try again.

◆ Please carefully check if the information you entered is correct.

※Due to differences in devices and OS, we cannot guarantee functionality, but we have not received any reports of issues with usage.

🅰️ Yes, it is possible.
You can set up the APN in advance, but you won’t be able to test whether it works properly while outside Japan.
Our product does not support international roaming, as it is designed for use with Japanese mobile carriers. Therefore, it can only be officially activated and used after arriving in Japan.

🅰️ No, it’s not necessary.
Each device has only one hotspot name and password, which are shared across all SIM cards and eSIMs.
※ What needs to be configured individually is the hotspot APN for each SIM card or eSIM.

◆Stop videos from auto-playing in your Facebook news feed
https://www.facebook.com/help/1406493312950827/?helpref=uf_share

◆Adjust the number of photos you want to see to control the data usage and loading speed on Facebook.
https://www.facebook.com/help/mobile-basic/656932384361200/

＜Quoted from Facebook＞

By default, Instagram preloads videos so they start faster whenever possible. If you want to help reduce the amount of cellular data the Instagram app uses, you can choose not to have Instagram preload videos over cellular connections.

◆iPhone設定方法
https://www.facebook.com/help/instagram/379494505495970?cms_platform=iphone-app&helpref=platform_switcher&locale=zh_HK

◆Android設定方法
https://www.facebook.com/help/instagram/379494505495970?cms_platform=android-app&helpref=platform_switcher&locale=zh_HK

＜Quoted from Instagram＞