자주 묻는 질문
From choosing a phone to fixing a connection abroad. Step-by-step installation instructions, screen by screen, are in the setup guide.
What exactly is an eSIM?
A SIM card that is downloaded instead of posted. Your phone stores the profile internally, so there is no plastic card to collect, swap or lose — and nothing to return when your trip ends.
제 휴대폰에서 eSIM을 쓸 수 있나요?
2019년 이후 출시된 기종은 대부분 eSIM을 지원합니다(iPhone XS 이후, Google Pixel 3 이후, 최근 몇 년간의 삼성 갤럭시 플래그십 등). *#06#으로 전화를 걸어 EID 번호가 표시되면 지원하는 기종입니다. 또한 통신사 잠금이 해제되어 있어야 합니다.
Do I have to take my own SIM card out?
No. The eSIM is added alongside the SIM you already use, and you choose which line carries data. Nothing is removed, so there is no card to keep safe and nothing to put back when you get home.
I am flying today — will it arrive in time?
Yes. Orders placed on this site are delivered by email within minutes, day or night, and installing takes about two more. Amazon orders need to be redeemed first, which usually takes about five minutes once Amazon has confirmed the payment.
eSIM은 언제 설치하는 게 좋나요?
출발 전에 집에서 Wi-Fi로 설치하시되, eSIM 회선은 꺼 두세요. 현지에 도착하신 뒤에 켜시면 됩니다. 유효기간은 설치 시점이 아니라 처음 연결된 시점부터 시작됩니다.
Amazon에서 산 건 어떻게 교환하나요?
교환 페이지에서 Amazon 주문번호(「주문 내역」에서 확인하실 수 있습니다)와 QR 코드를 받으실 이메일 주소를 입력해 주세요. 5분 정도면 도착합니다.
My phone says the eSIM could not be activated.
That message is expected before you travel: the profile cannot reach its network until you are in the destination. Look at Settings › Cellular (Android: SIM manager) instead — if the plan is listed there, installation worked and it will activate on arrival.
It has been stuck on “Activating” for hours.
Also normal when you install ahead of a trip. The profile is waiting for a network it cannot see yet, and it clears once you land. You do not need to reinstall — reinstalling is what usually causes real problems.
I get “not compatible” or “already in use”.
Either the phone is still locked to a carrier, or this QR code has already been installed once. Check your list of lines first. If the phone is locked, only the carrier that sold it can unlock it — we cannot.
My iPhone asks what kind of plan this is, or to label the lines.
Any label is fine — it is just a name on your screen. Call it SIMLESS or Travel so you can find it later. When asked which line to use for calls, messages and data, keep your usual line for now and switch data to SIMLESS after you land.
I switched the line on before leaving home. Did I waste my plan?
No. The plan starts on the first connection in your destination, so switching the line on at home does not consume anything — your phone simply cannot find that network yet.
How are the days of my plan counted?
From the first connection abroad. Most plans count a day as a full 24 hours from that moment; some count calendar days that end at 23:59 in the plan’s own time zone. The email that delivered your eSIM states which rule applies to the plan you bought.
쓰던 번호로 통화와 문자를 계속 쓸 수 있나요?
네. 통화와 문자는 기존 유심(또는 기존 eSIM) 그대로 쓰시고, 데이터만 SIMLESS eSIM이 담당합니다. 요금이 발생하지 않도록 기존 회선의 데이터 로밍은 꺼 주세요.
Do the regional plans really work in every country listed?
Yes — one profile covers the whole region, and your phone switches operator as you cross borders. If it does not pick a network up after an hour in a new country, open Network Selection, turn Automatic off and choose an operator by hand.
How fast is it? Do you throttle?
You get the same 4G/5G networks local customers use, at local speeds, wherever 5G is available on that plan. We do not throttle. Speeds still vary with coverage, crowding and your phone, exactly as they would on a local SIM.
The connection keeps dropping.
Restart the phone, then toggle airplane mode on and off. If that does not settle it, select the operator manually under Network Selection. Do not delete the eSIM — contact us from Wi-Fi and we will work it out with you.
노트북에 테더링할 수 있나요?
네. 모든 요금제에서 테더링(핫스팟)을 추가 요금 없이 이용하실 수 있습니다.
데이터를 다 쓰면 어떻게 되나요?
연결이 멈출 뿐, 추가 요금은 전혀 발생하지 않습니다. 더 필요하시면 몇 분 만에 새 요금제를 구매해 설치하실 수 있습니다.
When can I delete the eSIM from my phone?
Once the plan has expired and you are home. Deleting is permanent — the same QR code cannot be installed again — so keep it while you are still travelling, even if something is not working.
현지에서 연결이 안 되면 어떻게 하나요?
언제든 연락 주세요. 365일 영어 고객지원이 대기하고 있으며, 대부분은 채팅 한 번으로 해결됩니다. 그래도 연결되지 않으면 전액 환불해 드립니다.
환불이 되나요?
사용하지 않고 개통하지 않은 eSIM은 구매일로부터 30일 이내에 전액 환불해 드립니다. 한 번이라도 네트워크에 연결된 eSIM은, 확인된 기술적 결함을 제외하고 환불 대상이 아닙니다.