It's easier than it looks

Just tap through the numbered steps in order. There's no tiny card to swap like a physical SIM — you can set it up yourself, easily.

If anything doesn't go smoothly, we help for free in your language. Please don't hesitate to reach out.

What you can check here

Before you start
Setup on iPhone
Setup on Android
After you arrive
Things to watch out for

Please read first

An eSIM is used on the device where you first install it. It often cannot be moved to another phone, so set it up on the phone you will actually use.
After installing, do not delete the eSIM until you are finished — a deleted eSIM may not be reusable.
Wi-Fi is required to install your eSIM.
Log in to My Page and open your setup link (or the QR code / setup details).
Installing before departure is recommended.
Data use starts after arrival, once you select Bloomy eSIM as your mobile data line.
Activation timing varies by plan — please also check the post-purchase guidance.

Check these first

Your device supports eSIM
Your device is SIM-unlocked
You are connected to Wi-Fi
You can open the setup link (or QR code) in My Page
Your OS is not too old
Destination, days and plan are correct

Setup on iPhone

Connect to Wi-Fi
Open the Settings app
Open “Cellular / Mobile Data”
Tap “Add eSIM” or “Add Cellular Plan”
Tap the setup link from My Page (auto-opens on supported devices), or scan the QR code
Follow the on-screen steps to add the eSIM
Rename the line to something clear like “Bloomy eSIM”
Check the roles of your home line and Bloomy eSIM
Before departure, turn Bloomy eSIM off if needed
After arrival, set Bloomy eSIM as the mobile data line
Turn on “data roaming” (the setting that lets your phone receive signal abroad) for the Bloomy eSIM line if required

iPhone tips

Don't turn on data roaming for your home line
Check which line is selected for mobile data
“Allow Cellular Data Switching” may cause unintended line usage
Clear line names help avoid confusion abroad

Setup on Android

On Android, menu names vary by maker and version. Look for similar wording.

Connect to Wi-Fi
Open the Settings app
Open “Network & internet” or “Connections”
Open “SIM” or “Mobile network”
Tap “Add eSIM” or “Download a SIM”
Tap the setup link from My Page (auto-opens on supported devices), or scan the QR code
Follow the on-screen steps to add the eSIM
Rename the line to something clear like “Bloomy eSIM”
After arrival, set Bloomy eSIM as the mobile data line
Turn on “data roaming” (the setting that lets your phone receive signal abroad) if required
If data still won't connect, add the APN manually (your APN is shown in the eSIM details on My Page)

Android tips

Menu names differ by maker / OS version
It may be under “Connections”, “Network”, or “SIM manager”
Make sure data runs on Bloomy eSIM, not your home SIM
Be careful which line you set roaming on
Even after installing via QR, Android may not apply the APN automatically — add it manually if so

If the QR code won't scan (manual setup)

Manual setup details (e.g. SM-DP+ address) may be shown in My Page.
You can enter the SM-DP+ address and activation code manually.
Enter the details exactly, including case and symbols.
If you can't find the details, check My Page.

After you arrive

Bloomy eSIM is turned on
Bloomy eSIM is selected for mobile data
Data roaming is on for the Bloomy eSIM line
Your home SIM isn't using data by mistake
You are where there is signal
Restart the device if needed

Common mistakes

Thinking data starts automatically just after scanning the QR
Leaving the home SIM as the mobile data line
Leaving data roaming off
Not setting the required APN on Android
Trying to install without Wi-Fi
Deleting the eSIM and trying to reinstall
Using a non-supported or SIM-locked device

Important: don't delete your eSIM right away

Once deleted, an eSIM often cannot be reinstalled with the same QR code. If you can't connect, do not delete it — first check “How to fix connection issues”.

Related pages

Set up but can't connect?

If you can't connect abroad, follow the connection checklist step by step.

How to fix connection issues

See the FAQ Back to Help & Support

How to set up your eSIM