🅰️ No, you do not.
The Personal Hotspot name (Wi-Fi name) and password are based on the smartphone device settings, not the SIM card settings.
Therefore, regardless of how many SIM cards or eSIMs are installed on your phone:
✔ The Personal Hotspot name and password are shared device settings and do not need to be configured separately.
⚠️ The setting that needs to be configured individually for each SIM card or eSIM is the Personal Hotspot APN.
🅰️ Yes, you can.
We recommend completing the APN settings before departure, so you can use the Personal Hotspot function immediately after arriving in Japan.
⚠️ However, our SIM/eSIM products use Japanese local mobile networks and are not international roaming products. Therefore, they cannot connect to the Japanese Docomo network while you are outside Japan. Even if the APN settings have been completed, you will not be able to confirm whether the settings are successful or test the Personal Hotspot function overseas.
📌 In short:
✔ You can set up the APN before traveling.
✔ You can use it after arriving in Japan.
❌ You cannot test whether the APN settings are working while outside Japan.
This is a normal situation. Please test the connection after arriving in Japan and connecting to the mobile network.
🅰️ Please check the following items first:
If your phone uses multiple SIM cards or eSIMs at the same time, the most common issue is that the APN was set for the wrong SIM card.
Please confirm that the SIM/eSIM currently used for Mobile Data is the same SIM/eSIM where the APN settings were entered.
After completing the APN settings, please restart your phone once and test the Personal Hotspot function again.
Please carefully verify the following information:
✔ APN
✔ Username
✔ Password
Make sure all settings exactly match the information provided in the instruction manual.
⚠️ Important Notes
Due to the wide variety of smartphone brands, models, and operating system versions, the settings screens may differ depending on the device. Therefore, we cannot guarantee that the Personal Hotspot function will work on every device.
However, as of now, we have not received any cases where the Personal Hotspot function could not be used due to an issue with the JB SIM/eSIM itself.
📌 Turn on Personal Hotspot:
【Settings】 ➡ 【Personal Hotspot】 ➡ Turn on 【Allow Others to Join】
You can then share your mobile data connection with other devices.
📌 Change Wi-Fi Password:
【Settings】 ➡ 【Personal Hotspot】 ➡ 【Wi-Fi Password】
Enter a new password and save the settings.
📌 View or Change Wi-Fi Name:
【Settings】 ➡ 【General】 ➡ 【About】 ➡ 【Name】
This device name will be displayed as the Wi-Fi hotspot name when other devices search for available networks.
※ The operation interface may vary depending on the brand and model. The following example uses Samsung A55.
📌 Turn on Personal Hotspot:
【Settings】 ➡ 【Connections】 ➡ 【Mobile Hotspot and Tethering】 ➡ Turn on 【Mobile Hotspot】
You can then share your mobile data connection with other devices.
📌 Change Wi-Fi Name or Password:
【Settings】 ➡ 【Connections】 ➡ 【Mobile Hotspot and Tethering】 ➡ 【Mobile Hotspot】
📌 Tap 【Network Name】 or 【Password】
to enter the settings page and modify the hotspot name and password.
🅰️ To share your mobile data connection with a computer, tablet, or other devices using Personal Hotspot, you must first configure the APN settings.
Settings ➡ Cellular ➡ Cellular Data Network
Enter the following information under both Cellular Data and Personal Hotspot:
✔ APN
✔ Username
✔ Password
Settings ➡ Cellular ➡ Select the SIM you want to configure ➡ Cellular Data Network
Enter the following information under both Cellular Data and Personal Hotspot:
✔ APN
✔ Username
✔ Password
⚠️ Each SIM has its own APN settings. Be sure to select the correct SIM before making any changes.
⚠️ In most cases, you should configure the SIM currently selected for Cellular Data.
A Personal Hotspot option will appear in Settings.
Turn on:
✔ Allow Others to Join
We also recommend changing your Wi-Fi password before sharing your connection.
📌 To check your Wi-Fi (device) name:
Settings ➡ General ➡ About ➡ Name
For Android devices, whether you are using an eSIM or a physical SIM card, you must configure the APN before you can access mobile data or use the Personal Hotspot feature.
Using Samsung as an example:
Settings ➡ Connections ➡ Mobile Networks ➡ Access Point Names (APN) ➡ Tap ＋ (Add)
Enter the APN information provided with your SIM:
✔ APN
✔ Username
✔ Password
Save the settings when finished. You can then use mobile data and the Personal Hotspot feature.
⚠️ The menu layout may vary depending on the Android brand and model, but the setup process is generally the same.
🅰️ Yes! No additional application or activation is required. 😊
All JB SIM and JB eSIM products support Personal Hotspot at no extra charge.
⚠️ Before using Personal Hotspot, you must configure the Personal Hotspot APN settings. Otherwise, you won’t be able to share your mobile data connection with other devices.
