Sophie
7 November 2026 · 12 min read
Your phone dies, breaks or gets stolen in Lisbon, Dakar or Montreal. You buy a replacement locally, or you dig out the old handset you kept in your suitcase. Moving your line to a new phone abroad does work, but only if you prepared two things before leaving: a way to get online without your mobile line (Wi-Fi or a second SIM), and access to your carrier account that does not depend on a text message sent to the very line you are moving. Without those, an eSIM transfer gets stuck in a loop: you need an SMS code to activate the line, and the line to receive the code.
Updated 7 November 2026.
Can I move my line to a new phone from abroad?
Yes in most cases, but the method depends on the medium. A physical SIM card moves across in thirty seconds and works straight away. An eSIM has to be reactivated, which requires an internet connection and, very often, authentication with your carrier.
That is the whole difference between the two technologies, and it becomes brutal when travelling. The plastic card is self-contained: pull it out of one device, slot it into another, and it attaches the line to the new phone as soon as you switch on — no network needed beforehand, no account, no code. An eSIM is a software profile: it does not "come out" of a device, it has to be downloaded again from the carrier's servers.
We covered the general mechanism in our guide to switching to eSIM, activation and phone transfer. What changes abroad is that the two usual crutches — the data on your French line and the confirmation text — are precisely the ones that disappear during the operation.
| Medium | Transfer abroad | What you need first |
|---|---|---|
| Physical SIM (nano-SIM) | Immediate, offline | An ejector tool or a paperclip, the right tray format |
| eSIM, direct device-to-device transfer | A few minutes | Both phones switched on, Bluetooth + Wi-Fi, same ecosystem |
| eSIM, new carrier QR code | Variable, sometimes blocked | Access to your online account, Wi-Fi, sometimes an SMS or an email |
| eSIM after losing the phone | Often impossible on your own | A call to customer service from another line |
The SIM tray deserves a word: the formats have been standardised for years, the tools have not. If you travel with two devices, a small SIM card ejector tool tucked into your toiletry bag saves you from sacrificing an earring or bending a hotel staple in a €900 tray.
Why verification texts are the real sticking point
Because almost every sensitive service — bank, messaging, carrier account, tax office — falls back on a text sent to the exact line you are in the middle of transferring. As long as the line is not active on the new phone, none of those codes arrive.
The loop is simple to describe and very unpleasant to live through:
- You want to reinstall your eSIM on the new phone.
- The carrier's online account asks for strong authentication, often a six-digit code by SMS.
- That text goes to your number… which is not active on any device at that moment.
- So you cannot authenticate, so you cannot reactivate the line.
There are two ways out. The first: pending texts are not lost. The carrier's SMS centre keeps them and delivers them as soon as the line becomes reachable again — a mechanism we describe in our article on texts sent to a switched-off phone and delayed delivery. If you manage to reactivate the line by another route, the codes land, sometimes all at once, often expired.
The second: bypass SMS altogether. That is where you need to have done the groundwork before leaving.
Key point: an SMS verification code lives for only a few minutes. A code delivered late because the line was off the network is unusable. You have to request a new one once the line is stable.
What to do before you leave so you don't get stuck
Five precautions, all free, that take less than half an hour.
1. Write down your carrier username and password somewhere other than your phone
An online account you can reach with a username and password — rather than only with a text message — stays open from any browser. Also check the fallback method on offer: some carriers accept a code sent by email, others do not.
2. Get your RIO code and your line number
The RIO (relevé d'identité opérateur — carrier identity statement) is obtained by calling 3179 from your own line, free of charge. It is not needed to move a phone, but it becomes essential if the situation slides towards number portability. The full procedure is in our article on the RIO and switching carriers without losing your number.
3. Set up two-factor authentication that does not rely on SMS
This is the single most effective measure. Authenticator apps generate codes offline, on the device itself, with no network and no active line. For your most critical accounts, a physical USB-C or NFC security key replaces the text message with a physical gesture, which makes it immune both to network trouble and to the line hijacking described in our feature on SIM swapping and number theft.
One warning, though: if your authentication codes live only on the old phone and that phone is lost, you are in exactly the same dead end. The recovery codes issued when you set it up (a list of 8 to 10 single-use codes) should be printed or written down and kept in your wallet, not photographed.
4. Check that Wi-Fi calling and Wi-Fi texting are enabled
If the line does eventually activate but local reception is poor, hotel Wi-Fi may be enough to get messages through. How it works, its limits and which carriers support it are detailed in sending a text over Wi-Fi abroad. You enable it in the settings before you leave, not after.
5. Transfer the eSIM before you change country, not after
If you know you are going to change phones during the trip — a new device bought locally, an old handset as backup — do the transfer at home, on your own Wi-Fi, and travel with the line already installed on the device you will actually use. It is the only risk-free method.
How to transfer an eSIM on the spot, step by step
If the old phone still works
This is the best-case scenario. Recent operating systems offer a direct transfer, with no need to go through the carrier.
- Plug both devices in, or make sure they have at least 50% battery.
- Connect them to the same Wi-Fi network, and switch on Bluetooth on both.
- On iPhone (iOS 18 and later): Settings → Cellular → Add Cellular Plan → Transfer From Nearby iPhone.
- On Android (Android 15 and later, depending on the manufacturer): Settings → Network & internet → SIMs → Add eSIM → Transfer from another device.
- Confirm the code shown on the old device. The line deactivates on one side and activates on the other.
- Check by sending a real text message, not just by looking at the signal bars.
Not every French carrier supports this direct transfer across all of its plans. If it fails, the route is the QR code.
If the old phone is out of action
You will have to ask the carrier for a new eSIM profile. From abroad, that means:
- a stable Wi-Fi connection for as long as the profile takes to download;
- access to your online account via a browser, or a call to customer service — which is not free from abroad and has to be made from another line;
- sometimes a delay, as some carriers charge for or cap the number of profile reissues per month.
In this situation, a compact multi-port USB-C charger and a power bank save the day: an eSIM transfer that fails at 7% battery in an airport concourse does not get a second attempt. Also pack a universal travel plug adapter if you are outside Europe, otherwise none of the rest matters.
What if I buy a phone locally?
A phone bought outside the European Union is not necessarily compatible with the frequency bands used by French carriers, nor with VoLTE — voice over 4G, which has become essential since the gradual shutdown of the older networks.
Three checks before you pay:
| What to check | Why | Consequence if not |
|---|---|---|
| Unlocked device | A model sold with a local carrier rejects other SIMs | Your French line will not activate |
| eSIM support | Some regional models (notably for the Chinese market) lack it entirely | Transfer impossible, you need a physical SIM |
| 4G/5G bands and VoLTE | Frequency plans differ from continent to continent | Degraded or impossible calls once back in France |
It is the same issue as with a second-hand device: we covered it in detail in the compatibility traps of a refurbished smartphone: VoLTE, bands, IMEI. A dual-SIM phone bought before departure remains the most comfortable solution: a local SIM for data, the French line for verification texts. You do still need to know which of the two actually sends your messages, a question we took apart in which line sends the text on a dual-SIM phone abroad.
One last point that is often overlooked: backing up your conversations. Text messages do not sync automatically between devices the way emails do. Moving from one phone to another abroad means, in most cases, starting again with an empty inbox. If the history matters — a case number, a delivery code, an address sent by a relative — back it up before you leave. The change of default messaging app on some devices, discussed in our article on the end of Samsung Messages, showed just how fragile those histories are.
How much do the texts received during all this cost?
Nothing within the European Union, where the "roam like at home" rules require sent texts to be counted as if you were in France and incoming texts to be free. The Arcep (French telecoms regulator) restates this principle on its pages devoted to international roaming.
Outside the European Union it is the opposite: receiving is generally still free, but every text you send is billed outside your plan, often between €0.20 and €0.50 each depending on the destination and the carrier. If the whole exercise leads you to request five codes and exchange twenty messages with customer service, the bill shows it. Ballpark figures region by region are gathered in our guide to texts and data outside the European Union.
One detail matters particularly here: bank verification codes. Many French banks no longer send them by SMS but through their app, which requires an internet connection — so, abroad, either Wi-Fi or roaming data. If your new phone has neither at the moment of the transfer, no online payment will go through. Check before you leave which channel your bank uses, and enable the second one if it offers two.
Three mistakes not to make
- Throwing away or wiping the old phone before checking that the line works on the new one. Until a real text has been sent and received, the transfer is not finished.
- Deleting the eSIM profile from the old device "to keep things tidy". Once deleted, it cannot be reinstalled: you need a new QR code from the carrier.
- Relying on airport Wi-Fi to download an eSIM profile. These captive-portal networks often block the exchanges required. The Wi-Fi at an apartment or a café is more reliable.
If everything fails and you are left without a line, our home page lets you send a text for free from a browser to warn a relative or a colleague — handy while you sort things out with the carrier. The terms of use and deliverability limits are set out in our FAQ.
Frequently asked questions
Do my pending texts arrive once the new line is active?
Yes, within the retention period set by the sending carrier, generally 24 to 72 hours. Verification codes, however, will have expired: you need to request a new one.
Can an eSIM be transferred with no internet connection at all?
No. The eSIM profile is downloaded from the carrier's servers, which requires Wi-Fi or data. That is the major difference from a physical SIM card, which works offline.
Can my French carrier send a new eSIM QR code while I am abroad?
Yes, all four French carriers do so, either from your online account or through customer service. Some cap the number of reissues per month or charge beyond the first one: check the terms of your plan.
Should I tell my bank before changing phones abroad?
It is wise if your authentication relies on an app tied to the device: reinstalling that app on a new phone often triggers a re-enrolment process, sometimes with a 24 to 48 hour delay.
Will a phone bought outside Europe receive my French texts when I get back?
Yes, provided the device is unlocked and compatible with French frequency bands. Texts go through on almost any network; it is calls (VoLTE) and data that cause problems with an incompatible regional model.
