📶 eSIM Not Working or Hotspot Greyed Out in Japan? Here's How to Fix It
If you're traveling in Japan 🇯🇵 and your eSIM isn't connecting, or your hotspot option is greyed out, you're not alone. While rare, this issue can occur on both Android and Apple devices—typically due to a combination of carrier settings and phone firmware quirks.
The good news? It’s easy to fix with a few manual adjustments.
⏩ Quick Fix Summary:
✔️ Manually set the APN to vmobile.jp
📴 Turn off automatic network selection
↔️ Manually choose either NTT Docomo or IIJ
🔄️ (Optional) Reboot your device
🔧 Detailed Instructions
🤖 For Android Devices:
✔️ Open Settings
✔️ Tap Mobile Networks
✔️ Tap Access Point Names
✔️ Select your travel eSIM (e.g., from Airsims)
✔️ Enter vmobile.jp in the APN field
✔️ Leave all other fields blank
Then:
✔️ Go back to Mobile Networks
✔️ Turn off Auto Network Selection
✔️ Choose NTT Docomo or IIJ from the list
✔️ Restart your phone if needed
🍏 For Apple iOS Devices:
✔️ Open Settings
✔️ Tap Cellular or Mobile
✔️ Tap your travel eSIM (e.g., from Airsims)
✔️ Tap Cellular Data Network
✔️ Type vmobile.jp into all APN fields
Leave other fields blank
(If the APN auto-filled, tap Reset Settings and re-enter it)
Then:
✔️ Go back to the Cellular settings
✔️ Turn off Automatic network selection
✔️ Manually select NTT Docomo or IIJ
✔️ Reboot your device if necessary
🧠 Pro Tip: Once set correctly, data and hotspot should start working within a few minutes. If not, double-check the APN spelling and your selected network.
Still stuck? Let us know what device you're using and I can guide you further.
