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How to fix connection issues

If you can't connect abroad, check the following in order.

Do not delete your eSIM

Even if you can't connect, deleting the eSIM may make it impossible to reinstall. Before deleting, try the checks below in order.

What you can check here

  • First checks
  • Device settings
  • Signal & network
  • Restart & airplane mode
  • If it still won't work

Check in this order

  1. Check that you have arrived at your destination

    Many overseas eSIMs connect to a local network only after you arrive in the target country/region. They may not work in Japan or outside the coverage area.

  2. Check that Bloomy eSIM is turned on

    In your device’s cellular settings, make sure the Bloomy eSIM line is enabled. Turn it on if it is off.

  3. Check that Bloomy eSIM is selected for mobile data

    On iPhone check “Mobile Data”, on Android check the “Data SIM / mobile data” setting and select Bloomy eSIM. It won’t work if your home SIM is still selected.

  4. Turn on data roaming for the Bloomy eSIM line

    You may need to enable data roaming on the Bloomy eSIM line. Make sure you are changing the Bloomy eSIM line, not your home line.

  5. Toggle airplane mode

    Turn airplane mode on for about 10–15 seconds, then off. This re-searches for networks and can restore the connection.

  6. Restart your device

    Restart the device once. Right after adding the eSIM or arriving, a restart often helps.

  7. Set network selection to automatic

    If network selection is set to manual, switch it to automatic. Only if automatic fails, manually select a supported local network (supported network names vary by plan).

  8. Check the APN setting

    Some plans require an APN. If your purchase email or setup details include an APN, enter it as instructed. If none is given, don’t guess — check the post-purchase guidance.

  9. Try again where signal is stronger

    Signal can be weak at airports, underground, deep inside buildings, or in mountains. Try again outdoors or near a window.

  10. Wait a little and check again

    Connecting to a local network can take a few minutes. Right after setup, wait a bit and try again.

Quick check by device

iPhone

  • Settings > Mobile Data
  • Bloomy eSIM is on
  • Mobile data set to Bloomy eSIM
  • Data roaming on for Bloomy eSIM
  • Toggle airplane mode if needed
  • Restart the device

Android

  • Settings > Network & internet / Connections
  • SIM / Mobile network
  • Bloomy eSIM is on
  • Data SIM set to Bloomy eSIM
  • Data roaming on for Bloomy eSIM
  • Toggle airplane mode if needed
  • Restart the device

Please avoid

  • Deleting the eSIM right away
  • Turning on data roaming for your home SIM
  • Re-scanning the QR code many times
  • Entering random APN values
  • Repeatedly selecting an unsupported network manually

What to prepare if it still won't work

If the above didn't help, please prepare the following so we can check your situation.

  • Order number or purchase email
  • Country / region you are in
  • Your device model name
  • Any error message shown
  • Screenshot of the mobile data settings
  • Screenshot showing Bloomy eSIM is on
  • Screenshot showing Bloomy eSIM selected for data
  • Screenshot of the data roaming setting
  • Which steps you have already tried

Still stuck? Contact support

If the checks didn't help, prepare the info above and head to the Help & Support page.

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