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Japan eSIM: How to Set Up APN (vmobile.jp)
Japan eSIMs from Only eSIM require a manual APN configuration. Follow these step-by-step instructions to set your APN to vmobile.jp on iPhone and Android.
Japan eSIMs Require a Manual APN
Unlike most destinations, Japan eSIMs need you to manually enter an APN (Access Point Name) before your data will work. This takes about 30 seconds and only needs to be done once.
Your APN value: vmobile.jp
How to Set the APN on iPhone
- Open Settings
- Tap Cellular (or Mobile Data in some regions)
- Tap the name of your eSIM line in the list
- Tap Cellular Data Network
- In the APN field at the top, type
vmobile.jp - Leave all other fields blank
- Tap back to save — no confirmation button needed
After entering the APN, make sure Data Roaming is turned on for the eSIM line, then restart your phone.
How to Set the APN on Android (Pixel, Samsung, others)
Google Pixel / Stock Android
- Open Settings
- Tap Network & Internet
- Tap SIMs and select your eSIM
- Tap Access Point Names
- Tap the + icon to add a new APN
- Set Name to
Only eSIM Japan(or anything you like) - Set APN to
vmobile.jp - Tap the three-dot menu and select Save
- Select the new APN from the list to make it active
Samsung Galaxy
- Open Settings
- Tap Connections
- Tap Mobile networks
- Make sure your eSIM line is selected at the top
- Tap Access Point Names
- Tap Add (or the + icon)
- Set Name to
Only eSIM Japan - Set APN to
vmobile.jp - Tap Save
- Select the new APN to activate it
After saving, enable Data Roaming for the eSIM line and restart your phone.
Troubleshooting
If your data still isn't working after setting the APN:
- Check data roaming. This is the most common missed step. It must be enabled on the eSIM line specifically.
- Verify the correct line. Make sure you set the APN on your eSIM, not your physical SIM.
- Restart your phone. A reboot helps the phone register the new APN with the network.
- Double-check the value. The APN must be exactly
vmobile.jp— no spaces, no capital letters.
If none of the above works, contact our support team with your order number and we will help you get connected.
Common questions
- Why does my Japan eSIM need a manual APN?
- Japan eSIMs route through a specific network gateway (vmobile.jp) that most phones don't configure automatically. Without this APN, your phone won't know how to connect to the internet even though the eSIM is installed and active.
- When should I set the APN — before or after arriving in Japan?
- You can set it any time after installing the eSIM. We recommend doing it before you fly so everything is ready when you land. The APN setting won't interfere with your regular SIM.
- I set the APN to vmobile.jp but still have no data in Japan.
- Make sure data roaming is enabled on the eSIM line (Settings > Cellular > your eSIM > Data Roaming). Then restart your phone. If it still doesn't work, check that you entered the APN on the correct SIM line — it must be on the eSIM, not your physical SIM.
- Can I use hotspot/tethering with my Japan eSIM?
- Yes. Hotspot and tethering work normally once the APN is configured correctly.
Related Articles
How to Configure APN Settings (iPhone & Android)
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How to Set Your eSIM as the Default Data Line
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