How to set up your eSIM
Set up in one tap after purchase — on supported devices the eSIM screen opens automatically (QR scan and manual entry also supported).
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”.
Common setup questions
I deleted the purchase email. Can I get the QR code again?
Yes. Your QR code and setup details are always available in My Page, as many times as you need. It is fine to delete the email.
Do you send a setup guide PDF?
No. Bloomy does not send PDF guides. Everything is done in My Page — QR code, manual setup details and data usage are all on one screen.
The QR code will not scan. Can I set it up manually?
Yes. My Page shows the manual details (SM-DP+ address and activation code) that you can enter on your device's "Add eSIM" screen.
Does the validity start on the day I buy?
The days are counted from activation — when your eSIM first connects to a network abroad — not from the day you buy it. You have up to 180 days after purchase to activate, so you can buy and set up before you travel. My Page always shows the exact expiry date.
Can I set it up before I leave home?
Yes — setting it up on Wi-Fi before you travel is the safest approach. When you arrive, just turn on data roaming.
I deleted the eSIM from my phone. Can I reinstall it?
Often it cannot be reinstalled with the same QR code. The QR code itself stays available in My Page, but please do not delete an installed eSIM until you have finished using it.
Does it include a phone number or SMS?
Bloomy eSIM is data-only. It does not come with a local number or SMS, but calls and messages through apps such as WhatsApp, LINE and Messenger work normally.
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