Messaging Abroad: WhatsApp, iMessage, Signal — Settings to Check Before You Fly

30 Oct 2025

Travelling with your favourite messaging apps should be simple, but a few unchecked settings can trigger activation texts, runaway photo sync, or costly roaming. This guide focuses on the practical tweaks to make before you go — especially the whatsapp while traveling settings most people miss — so WhatsApp, iMessage and Signal keep working, use less data, and stay secure. We’ll cover line selection on dual‑SIM phones, verification safety (so you don’t get locked out), media auto‑download controls, roaming costs, and backup encryption.

If you plan to use mobile data abroad, consider a local or regional eSIM rather than roaming your home plan. It’s typically cheaper and more predictable. Simology’s coverage spans popular regions including Esim United States, Esim France, Esim Italy, Esim Spain, and broader options like Esim Western Europe and Esim North America. Check what’s available for your trip via Destinations.

Before you go: set up lines, data and roaming

Get your phone’s dual‑SIM and data behaviours right first. It prevents most bill shock and activation hassles.

1) Pick your travel data plan

Prefer a local/regional eSIM to roaming your home SIM for data. It’s usually cheaper, especially for media‑heavy apps.
Browse regional options via Destinations (e.g., Esim Western Europe for multi‑country trips, or Esim North America).

2) Choose the right line for mobile data

iPhone: Settings > Mobile Data
Default line: set your travel eSIM as “Mobile Data”.
Data Roaming: ON for the travel eSIM; OFF for your home SIM.
Allow Mobile Data Switching: OFF to stop your iPhone quietly using the home line’s data when signal is weak.
Android (varies by device):
SIM Manager/Network & Internet > SIMs > Preferred SIM for Mobile Data: choose your travel eSIM.
Disable Data Roaming on the home SIM.
Disable “Switch to mobile data/Adaptive Connectivity/Smart network switch” if it can override Wi‑Fi to mobile.

Pro tip: Turning off Wi‑Fi Assist (iOS: Settings > Mobile Data > Wi‑Fi Assist OFF) prevents surprise cellular data when hotel Wi‑Fi dips.

3) Keep your home number reachable (but not roaming data)

Leave your home SIM active for calls/SMS (bank codes, callbacks), but with Data Roaming OFF.
Turn on Wi‑Fi Calling (if supported) to receive calls/SMS over Wi‑Fi at lower cost.

4) Verify logins and add app‑level protection

Ensure you’re logged into WhatsApp/Signal/Apple ID on Wi‑Fi at home.
Enable app‑level two‑step verification where available (WhatsApp, Signal) and Apple ID two‑factor authentication.
Note: iMessage/FaceTime may send a one‑time activation SMS per line; see iMessage tips below to avoid activating your travel number.

WhatsApp: essential “whatsapp while traveling settings”

WhatsApp is number‑based and famously sticky with media. These settings keep your chats flowing and your data usage predictable.

Confirm your number and enable two‑step verification

Open WhatsApp > Settings > Account > Two‑step verification > Enable.
Set a PIN and add a recovery email. This defends against SIM‑swap attacks and accidental re‑registration.
Check your registered number in Settings > Your profile. If you plan to permanently change numbers, use Settings > Account > Change Number before you travel.

Pro tip: You can use WhatsApp on Wi‑Fi with no SIM in the phone, as long as you don’t log out or reinstall. Don’t delete the app while abroad unless you can receive the verification SMS to your registered number.

Reduce data and control media auto‑download

Settings > Storage and data:
Use less data for calls: ON (helps on weak networks and trims usage).
Media auto‑download:
- When using mobile data: set to None (or Photos only).
- When connected on Wi‑Fi: Photos (optional), leave Videos OFF to avoid hotel Wi‑Fi meltdowns.
Photo upload quality: choose Auto or Data saver.
Manage chat storage: Settings > Storage and data > Manage storage. Bulk‑delete large videos and forwarded media before you go.

Pro tip: Long trips? Archive high‑volume groups and mute them; fewer auto‑downloads and fewer background refreshes.

Encrypt your WhatsApp backups (and keep them off mobile data)

iPhone/Android: Settings > Chats > Chat backup > End‑to‑end encrypted backup > Turn on.
Create a strong password or store the 64‑digit key securely. Lose it, and you can’t restore.
Set backups to run on Wi‑Fi only. On iOS, avoid iCloud mobile data usage by going to Settings > Photos > Mobile Data > OFF (prevents iCloud Photos from consuming your travel data alongside WhatsApp).

Avoid verification headaches abroad

Keep the SIM with your WhatsApp number reachable for SMS/voice if you think you might need to re‑verify (e.g., after a reset).
Link secondary devices before departure: Settings > Linked devices. Linked devices may disconnect if your primary phone is inactive for a while, so open WhatsApp on your main phone when you can.
If you permanently switch numbers, use WhatsApp’s Change Number tool so contacts and groups update cleanly.

iMessage (Apple Messages): control identities, activation, and media

iMessage can use your numbers and/or your Apple ID email. Abroad, stick to your home identity and avoid activating the travel number.

Choose which addresses you use

Settings > Messages > Send & Receive:
Select your Apple ID email and your home number.
Deselect the travel eSIM number (so Apple doesn’t try to activate it and so contacts don’t see a new number).
Start new conversations from: choose your Apple ID email or home number.

Note: Adding a new SIM/eSIM can trigger an iMessage/FaceTime activation SMS, which may be charged at international rates. Deselecting the travel number as above minimises this risk.

Keep data usage low

Settings > Messages:
Low Quality Image Mode: ON (sends smaller photos).
Auto‑Play Message Effects: OFF (saves a bit).
iCloud Photos can dwarf messaging data:
Settings > Photos > Mobile Data: OFF (stops photo library syncing on mobile).
Consider pausing iCloud Drive for the trip (Settings > Your Name > iCloud > iCloud Drive > temporarily OFF) if you sync big files.
Device data guards (iPhone):
Settings > Mobile Data > Data Roaming: OFF on home line; ON on travel eSIM.
Allow Mobile Data Switching: OFF.
Wi‑Fi Assist: OFF.
Low Data Mode (per network): ON for your travel eSIM’s mobile data.

Privacy and backup encryption for Messages

If you use Messages in iCloud and want stronger protection, enable Advanced Data Protection:
Settings > Your Name > iCloud > Advanced Data Protection > Turn On.
Set recovery contacts/keys first. This end‑to‑end encrypts Messages in iCloud.
Alternatively, you can turn Messages in iCloud OFF to keep messages only on‑device (but you’ll lose cloud restore for new messages created while it’s off).

Signal: secure by default, with the right prep

Signal isn’t tied to cloud backups and has robust privacy controls. A little planning smooths travel.

Lock registration and add a strong PIN

Signal > Settings > Account > Registration Lock: ON.
Set a strong PIN and store it in a password manager. This prevents others from registering your number on another device.

Tame media and call data

Settings > Data and Storage:
When using mobile data: Auto‑download media = None (or just Images).
Use less data for calls: ON.
Disable “Allow background data” on Android (system setting) to curb background use.

Backups and transfers

iOS:
Use Signal’s device‑to‑device transfer when changing phones (both devices on the same Wi‑Fi, follow in‑app prompts). Signal messages are not part of iCloud backups.
Android:
Settings > Chats > Chat backups > Create backup.
Save the 30‑digit passphrase in a safe place; you need it to restore. Store the backup file somewhere secure (not just on the phone).

Number changes while abroad

If you’re permanently changing your number, use Signal > Settings > Account > Change phone number. Signal will migrate your profile/contacts and update safety numbers for your contacts.

Device‑level controls that matter on the road

A few system switches make the biggest difference to cost and reliability.

Checklist: - Home SIM: Data Roaming OFF. Voice/SMS ON if you need verification codes. - Travel eSIM: Data Roaming ON. Set as default data line. - Disable Wi‑Fi Assist (iOS) and “Switch to mobile data/Adaptive Connectivity” (Android). - Restrict background data for heavy apps (cloud photos, Drive, music). - Download maps/music for offline use before you fly. - Set messaging apps to use less data for calls and disable video auto‑download. - Use a SIM PIN and device screen lock. If lost, remote‑wipe via iCloud/Google as soon as possible.

For team travel, shared lines and predictable costs, see Simology For Business. Industry partners can explore provisioning and support via our Partner Hub.

Quick How‑To: the 90‑second pre‑flight checklist

1) Install your travel eSIM and set it as the Mobile Data line. Turn off data roaming on your home SIM.
2) iPhone: turn off Wi‑Fi Assist and Allow Mobile Data Switching. Android: disable network “auto switch to mobile data”.
3) WhatsApp: enable Two‑step verification; set Media auto‑download (mobile = None); turn on End‑to‑end encrypted backup (Wi‑Fi only).
4) iMessage: Send & Receive — select Apple ID and home number only; deselect the travel number; turn on Low Quality Image Mode.
5) Signal: enable Registration Lock; set mobile auto‑download to None; prepare iOS transfer or Android encrypted backup if changing devices.
6) Photos/Cloud: disable mobile data for Photos/Drive; queue big syncs for Wi‑Fi only.

FAQ

Q1: Can I use WhatsApp on Wi‑Fi only with no SIM inserted?
Yes. WhatsApp will keep working on Wi‑Fi even without a SIM, as long as you don’t log out or reinstall. If you reinstall or switch phones, you’ll need to receive an SMS/voice call to the registered number to verify.

Q2: Will adding a travel eSIM trigger iMessage activation charges?
It can. Adding a new line may prompt iMessage/FaceTime to send an international SMS for activation. To avoid this, in Settings > Messages > Send & Receive, deselect the travel number so Apple does not activate it. Keep iMessage tied to your Apple ID email and/or home number.

Q3: Are WhatsApp/Signal calls “free” when roaming?
They use data, not minutes. Costs depend on your data plan. Using a local/regional eSIM (e.g., Esim United States or Esim Western Europe) is usually far cheaper than roaming your home SIM’s data.

Q4: Should I change my WhatsApp number to my travel eSIM’s number?
Usually no. Keep WhatsApp on your permanent/home number so contacts don’t lose you. Only use WhatsApp’s Change Number if you’re permanently switching numbers.

Q5: What’s the safest way to back up chats before a long trip?
- WhatsApp: enable End‑to‑end encrypted backups and run a manual backup on Wi‑Fi.
- Signal: iOS uses secure device‑to‑device transfer; Android supports encrypted local backups with a passphrase.
- iMessage: enable Advanced Data Protection for end‑to‑end encrypted Messages in iCloud, or keep Messages in iCloud off if you prefer on‑device only.

Q6: What if my phone is lost abroad?
Use Find My/Find My Device to lock and wipe it. Contact your carrier to block the SIM/eSIM. For WhatsApp, you can register your number on a new device (which logs out the old one). Having WhatsApp two‑step verification/Signal registration lock enabled helps prevent hijacking.

Next step: Choose the right travel data plan for your route via Simology’s Destinations, including regional passes like Esim North America and Esim Western Europe.

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Andes Highlights (3 Weeks): Peru–Bolivia–Chile–Argentina Connectivity

Planning a south america itinerary 3 weeks through the high Andes? This route stitches together Peru’s Sacred Valley, Bolivia’s La Paz and Salar de Uyuni, Chile’s Atacama Desert, and northern Argentina’s quebradas or Mendoza wine country—often by long-distance bus and a couple of short flights. Connectivity is different at altitude: coverage is strong in cities but drops in high passes and salt flats; bus Wi‑Fi is patchy; border towns can be blackspots. The smart move is an eSIM with multi‑country coverage, backed by offline maps, offline translations, and a simple routine for crossing borders by bus without losing service. Below you’ll find a practical, connectivity-first itinerary; checklists to prep your phone, apps and documents; and on-the-ground tips for staying online where it matters: booking transport, hailing taxis, backing up photos, and navigating when the signal disappears.If you’re transiting via Europe or North America, you can also add a layover eSIM to stay connected door-to-door. Start with our country list on Destinations, then follow the steps, and you won’t waste time chasing SIM shops at 3,500 metres.The 3‑week Andes route at a glanceWeek 1: Peru (Cusco, Sacred Valley, Machu Picchu) - Fly into Cusco (or Lima then connect). - Base in Cusco; day trips to Pisac/Chinchero/Maras–Moray. - Train to Aguas Calientes; Machu Picchu visit; return to Cusco or continue to Puno/Lake Titicaca.Week 2: Bolivia and Chile (La Paz, Uyuni, San Pedro de Atacama) - Bus/collectivo via Copacabana to La Paz. - Fly or overnight bus to Uyuni. - 3‑day Uyuni–altiplano tour ending in San Pedro de Atacama (Chile).Week 3: Chile and Argentina (Atacama to Salta or Mendoza/Buenos Aires) - Choose: - North: San Pedro to Salta/Jujuy by bus; fly to Buenos Aires. - Or South: San Pedro–Calama flight to Santiago; bus or flight to Mendoza; onward to Buenos Aires.Connectivity notes (quick): - Cities: generally strong 4G/4G+; 5G in major hubs (Santiago, Buenos Aires). - Altitude/rural: expect long no‑signal stretches (Uyuni, altiplano passes, Paso Jama). - Bus Wi‑Fi: often advertised, rarely reliable. Plan to be offline onboard. - Border regions: networks switch; a multi‑country eSIM avoids sudden loss.eSIM vs local SIMs for a 4‑country tripFor a route with multiple borders and remote legs, eSIM wins on time and reliability.What a multi‑country eSIM gets you: - One plan across Peru, Bolivia, Chile, Argentina (check coverage per country on Destinations). - No passport/SIM registration queues at kiosks. - Keep your home number active on the physical SIM for calls/SMS codes. - Instant top‑ups if you burn data on photos or navigation.When a local SIM still helps: - Long stay in one country with heavy data use (e.g., a month in Buenos Aires). - Dead zones where a different local network performs better (rarely worth the hassle on a 3‑week pace).Practical approach: - Use an eSIM as your primary data line across all four countries. - If you find a specific local network far better in one region, add a cheap local SIM and keep the eSIM as backup.Device readiness checklist (before you fly)1) Check eSIM compatibility and SIM‑lock status on your phone.2) Buy and install your eSIM while on home Wi‑Fi. Keep a PDF/printed copy of the QR code.3) Label lines clearly (e.g., “eSIM Andes Data”, “Home SIM”).4) Turn on data roaming for the eSIM; leave roaming off for your home SIM to avoid charges.5) Set up dual‑SIM rules: data on eSIM; calls/SMS default to home SIM if needed.6) Download offline: Google Maps/Organic Maps for all target regions; language packs (Spanish at minimum); bus/air tickets; hotel confirmations.7) Cloud backups: set to upload on Wi‑Fi only; pre‑create shared albums for travel companions.8) Test tethering/hotspot with your laptop/tablet.If you’re transiting popular hubs, consider a short layover eSIM: - USA connections: add an Esim United States or a broader Esim North America.- Europe connections: Madrid/Barcelona? Use an Esim Spain. Paris or Rome? See Esim France and Esim Italy. Multi‑country layovers? Try Esim Western Europe.City‑by‑city connectivity notesCusco & the Sacred Valley (Peru)Coverage: Good in Cusco city; variable in high villages (Maras/Moray) and along Inca Trail approaches.Tips: Download Sacred Valley maps offline; pin viewpoints and ruins. most taxis use WhatsApp—save your accommodation’s number.Machu Picchu/Aguas Calientes: Patchy to none at the citadel. Upload your photos later; don’t rely on live ticket retrieval.Lake Titicaca: Puno and CopacabanaPuno: Reasonable 4G; bus terminals crowded—screenshot QR tickets.Crossing to Copacabana: Expect a signal drop around the border; have directions saved offline.La Paz (Bolivia)Good urban 4G; the cable car network has decent signal but tunnels do not.Yungas/“Death Road” tours: Mountain valleys cause dead zones—share your emergency contacts with the operator, carry a charged power bank, and don’t plan remote calls.Uyuni and the Altiplano (Bolivia to Chile)Uyuni town: OK 4G; ATMs finicky—use Wi‑Fi for banking apps.Salt flats/lagunas: Assume offline for most of the 3‑day tour. Guides often carry satellite phones; agree a pickup time/place in San Pedro and preload your map route.San Pedro de Atacama (Chile)Town: Solid 4G; accommodations often have Wi‑Fi but speeds vary.Geysers, Valle de la Luna: Offline navigation essential; sunrise trips start before mobile networks wake up in some areas.Salta/Jujuy or Mendoza/Buenos Aires (Argentina)Salta/Jujuy: Good city coverage; quebradas have long no‑signal sections.Mendoza: City 4G/5G; vineyards outside town can be patchy.Buenos Aires: Strong 4G/5G; ideal for cloud backups and large downloads before you fly home.Border crossings by bus: step‑by‑stepThe big ones on this route: Peru–Bolivia (Puno/Copacabana), Bolivia–Chile (Uyuni–San Pedro via Hito Cajón), Chile–Argentina (Paso Jama to Salta or Los Libertadores to Mendoza).How to keep service and sanity:1) The day before:- Top up your eSIM data.- Confirm your plan includes both countries you’re entering/leaving.- Download offline maps for both sides of the border and your town of arrival.- Save bus company WhatsApp and terminal address offline.2) On departure morning:- Keep a paper copy or offline PDF of tickets, insurance, and accommodation proof.- Charge phone and power bank; pack a short cable in your daypack.3) On the bus:- Don’t count on bus Wi‑Fi. Keep your eSIM as primary, but expect drops near mountain passes.- If your phone supports it, enable “Wi‑Fi calling” for later when you reach accommodation Wi‑Fi.4) At the border posts:- Data may be unavailable. Keep QR codes and booking numbers offline.- After exiting one country and entering the next, toggle Airplane Mode off/on to re‑register on the new network.- If the eSIM doesn’t attach, manually select a network in Mobile Settings.5) Arrival:- Send your accommodation a quick WhatsApp when you’re back online.- Recheck your eSIM’s data roaming is on; confirm you’re on an in‑country network, not a weak roaming partner.Pro tips: - Dual profiles: If your eSIM allows, keep a secondary profile for a different network in the same country—helpful in border towns.- Cash buffer: Some border terminals don’t accept cards; download a currency converter for offline use.Offline survival kit (5‑minute setup)Maps: Download regions for Cusco, Sacred Valley, Puno, La Paz, Uyuni, San Pedro, Salta/Jujuy or Mendoza, and Buenos Aires.Translations: Download Spanish for offline use; add phrasebook favourites (bus tickets, directions, dietary needs).Documents: Save PDFs of passports, tickets, hotel addresses; star them for quick access.Rides: Screenshots of pickup points; pin bus terminals and hotel doors.Entertainment: Podcasts and playlists for long bus legs, set to download on Wi‑Fi only.Altitude and your tech: what changesCoverage gaps lengthen: Fewer towers at high altitude; valleys can block signal. Assume offline on remote excursions.Batteries drain faster in cold: Keep your phone warm and carry a power bank (10,000–20,000 mAh).Hotel Wi‑Fi may be congested: Schedule big uploads (photo backups, app updates) for big-city stays like Santiago or Buenos Aires.GPS still works offline: Your blue dot shows on offline maps without data—preload everything.Data budgeting for 3 weeksTypical traveller usage across this route: - Messaging/Maps/Bookings: 0.2–0.5 GB/day- Social and photo sharing: 0.3–0.7 GB/day- Occasional video calls/streaming: 0.5–1.0 GB/dayFor a mixed-use trip, plan 15–25 GB for 3 weeks. Heavy creators should double it and upload over hotel Wi‑Fi when possible. If you work remotely, consider a higher‑capacity plan and a backup eSIM; see our guidance on For Business.Practical route with transport and connectivity cuesDays 1–4 Cusco base: Strong city signal; day trips may be spotty—go offline-ready.Days 5–6 Machu Picchu: Expect no service at the ruins; sync tickets ahead.Days 7–8 Puno to La Paz via Copacabana: Border signal drop; re‑register networks after crossing.Days 9–11 Uyuni tour to San Pedro: Treat as offline; charge nightly; carry spare cables.Days 12–14 San Pedro: Stable in town; tours offline; top up data before Paso Jama.Days 15–17 Salta/Jujuy or Mendoza: Good urban 4G; rural patches are offline.Days 18–21 Buenos Aires: Strongest connectivity of the trip; clear your uploads and map downloads for the flight home.Partnering and stopover extrasHospitality and tour operators in the Andes: help your guests stay connected—explore co‑branded solutions via our Partner Hub.Transatlantic flyers: test your eSIM setup on a layover with an Esim United States or Esim Western Europe before hitting high-altitude blackspots.FAQs1) Do I need a local SIM in each country?No. A multi‑country eSIM covering Peru, Bolivia, Chile and Argentina is simpler and works well for a 3‑week pace. Consider a local SIM only if you’ll spend longer in one country and want the absolute best regional coverage.2) Will my WhatsApp number change with an eSIM?No. WhatsApp is tied to your registered number, not your data line. Keep your home SIM active for voice/SMS (roaming off if you wish), and use the eSIM for data—WhatsApp continues as normal.3) Can I hotspot to my laptop or camera?Yes. Enable tethering on your eSIM. Mind your data: cloud backups and OS updates can burn gigabytes—set them to Wi‑Fi only or schedule in big cities.4) What if there’s no signal on the Uyuni/Atacama legs?That’s expected. GPS still works offline. Pre-download maps and translations, carry a power bank, and sync plans with your tour operator before departure.5) Will I get roaming charges at borders?If you’re using a multi‑country eSIM with coverage in both countries, you won’t incur extra roaming fees from your home carrier. Keep roaming off on your home SIM to avoid accidental use.6) I’m connecting via Europe or the US—worth getting a layover eSIM?Yes. It’s an easy way to test your setup and stay reachable. Try Esim North America or country options like Esim Spain, Esim France, or Esim Italy for common hubs.Next step: Browse South America coverage options and build your plan on Destinations.

31 Oct 2025

Move eSIM to a New Android Phone (Samsung/Pixel/OnePlus)

If you’re upgrading your Android phone or carrying a new device for travel, moving your mobile plan across should be straightforward. With eSIM, that can mean either a direct device‑to‑device transfer (supported on some models and networks) or a quick reactivation using your carrier’s SM‑DP+ details or QR code. This guide explains both paths for Samsung, Google Pixel and OnePlus, and helps you decide which one to use. We’ll also cover dual‑SIM caveats that catch travellers out, and the exact situations where re‑downloading your eSIM is required. Whether you’re keeping your home number for banking OTPs and adding a travel eSIM for data, or consolidating everything on a new handset, follow the steps below and you won’t be left without service on the way to the airport. Planning a trip? Explore local and regional eSIMs on our Destinations page, including options like Esim United States and Esim Western Europe.Quick reality check: “transfer” vs “reactivate”There is no user‑accessible “export/import file” for eSIM profiles on Android due to GSMA security.Transfers work only when both devices and your carrier support the built‑in eSIM migration feature.Otherwise, you’ll reactivate on the new phone by scanning a QR code or entering SM‑DP+ details; your carrier re‑downloads the profile from their server.Keep both devices and a Wi‑Fi network handy. If your old phone is lost or broken, skip straight to the SM‑DP+ reactivation method.Before you start: compatibility and preparation checklistMake sure the following is true to avoid interruptions:Your new phone is eSIM‑capable and carrier‑unlocked.Android version: ideally Android 13 or newer (Android 14 improves transfer on Pixels).Battery ≥ 50% on both phones; connect to stable Wi‑Fi.Bluetooth enabled and both devices are nearby (for transfer).You know your eSIM’s SM‑DP+ server and activation code (check your email/order, carrier app/portal, or support). The code often looks like LPA:1$smdp.plus.example$ACTIVATIONCODE.Find your EID (eSIM ID) in Settings > About phone > Status (some carriers ask for it).If your carrier enforces “one active eSIM per number,” be ready to remove or deactivate the eSIM on your old phone when instructed—ideally only after the new one is live unless support tells you otherwise.Back up your messaging apps if needed (RCS/WhatsApp is account‑based but verify backup settings).Travelling soon? You can keep your home line for OTPs and add a travel data eSIM such as Esim North America or Esim Spain on the new device.Option A: Device‑to‑device eSIM transfer (when available)This is the easiest path when it appears. It requires support from your device, Android version and carrier. If you don’t see a transfer option, jump to Option B.Samsung (One UI 5.1 or later)On recent Samsung models, eSIM transfer is built into SIM Manager.1) On the new Samsung: - Go to Settings > Connections > SIM manager > Add eSIM. - Choose Transfer SIM or Transfer eSIM from another device if prompted.2) On the old Samsung: - When a transfer prompt appears, follow on‑screen instructions to approve the transfer. You may also navigate to Settings > Connections > SIM manager > Your eSIM > Transfer to another device if asked.3) Keep both devices unlocked, on Wi‑Fi and close together. Wait for the process to complete.Notes: - Smart Switch does not move eSIM profiles; use SIM manager transfer only. - If your carrier doesn’t support transfer, Samsung will direct you to use a QR/SM‑DP+ activation instead.Google Pixel (Pixel 6 and newer on Android 13/14)Newer Pixels offer eSIM transfer for participating carriers, especially on Android 14.1) On the new Pixel: - Settings > Network & internet > SIMs (or Mobile network) > Add SIM > Download a SIM instead. - If you see Transfer from another device, select it.2) On the old Pixel: - Approve the transfer when prompted.If the transfer option is missing or shows “No eligible SIM,” proceed with SM‑DP+ reactivation.OnePlus (OxygenOS 13/14)Most OnePlus models support eSIM but typically do not offer device‑to‑device transfer. Expect to use QR/SM‑DP+ reactivation (see Option B). If a transfer option appears on your device and carrier, follow on‑screen steps as above.Pro tips for transfersKeep mobile data off during transfer and use Wi‑Fi to avoid interruptions.If you have multiple eSIM profiles, transfer one at a time.After transfer, test calls, SMS and data. Then remove the eSIM from the old phone if required by your carrier.Option B: Reactivate the eSIM on your new phone (QR/SM‑DP+)If transfer isn’t supported, re‑download the eSIM profile from your carrier’s server.What you need: - SM‑DP+ address, activation code, and (optionally) a confirmation code. - Your EID (sometimes required to bind the profile to your new device).Generic Android steps1) On the new phone: - Open Settings: - Samsung: Connections > SIM manager > Add eSIM. - Pixel: Network & internet > SIMs > Add SIM > Download a SIM instead. - OnePlus: Settings > Mobile network > SIM management > Add eSIM. 2) Choose Scan QR code. If you don’t have a QR, pick Enter details manually and input the SM‑DP+ server and activation code from your carrier. 3) Stay on Wi‑Fi while the profile downloads. When installed, set it as your preferred line for data, calls and SMS as needed.When SM‑DP+ reactivation is requiredMoving between different brands (e.g., Samsung to Pixel, Pixel to OnePlus).Your carrier doesn’t support Android’s transfer feature.The old phone is lost, broken or wiped.You’ve changed numbers or are porting service.The profile on the old phone is locked or corrupted.Business or MDM‑managed lines where security policy blocks transfer.If your carrier limits one active eSIM per line, they may ask you to remove the old one first or will automatically suspend it when the new profile activates.Common places to find your QR/activation detailsThe original fulfilment email or order page.Your carrier or provider app.Web account portal under “Manage eSIM.”Support chat—have your EID ready.Heading to France or Italy? You can set up your travel data line in advance with Esim France or Esim Italy and activate it the moment you land.About “export/import” of eSIM profilesThere is no manual export/import file for eSIM on Android.“Transfer” is a controlled hand‑off between devices when supported.Otherwise, you “import” by re‑downloading from the SM‑DP+ server using your activation code.If anyone asks you to share an eSIM file, treat it as a red flag.Dual‑SIM and travel caveats (read before you fly)Dual‑SIM flexibility is brilliant for travellers, but a few settings matter:One data connection at a time: Android supports DSDS (dual SIM dual standby) but only one SIM can carry mobile data concurrently. Set your travel eSIM as the data SIM.Roaming control: Turn off data roaming on your home SIM to avoid surprise charges, while keeping calls/SMS on if you need OTPs.5G/VoLTE per SIM: 5G and VoLTE availability can be restricted when two SIMs are active. On some models, 5G drops to 4G when both SIMs are enabled. Test locally before you travel.Wi‑Fi Calling and RCS: These features are provisioned per SIM. If they don’t work on the new device, toggle them off/on or re‑provision by briefly switching the device to airplane mode and back on Wi‑Fi.Visual Voicemail: May require your carrier’s app or re‑provisioning on the new phone.Stored vs active eSIMs: Many phones can store multiple eSIM profiles (e.g., 5–8) but only keep one or two active at once. Name them clearly (e.g., “Home UK,” “Spain data”).Priority for calls/SMS: Choose the correct default SIM for outgoing calls and messages, or set “Ask every time” to avoid using the wrong line.Planning multiple countries? Consider a regional plan like Esim Western Europe instead of juggling several single‑country eSIMs such as Esim Spain.Troubleshooting: errors and roadblocksNo transfer option available:Update both phones to the latest software.Log into the same brand account if required (Samsung account for some transfers).If it still doesn’t appear, use SM‑DP+ reactivation.“No eligible SIM” or “Carrier not supported”:Your carrier doesn’t support transfers. Use the QR/SM‑DP+ method or contact support to unlock/reissue an eSIM.Activation fails or stalls:Use Wi‑Fi only; turn off mobile data during download.Toggle airplane mode or reboot.Clear Carrier Services app cache (Pixels/stock Android).Confirm the SM‑DP+ address and activation code characters (watch for 0/O and 1/I mix‑ups).Wait 10–15 minutes and try again—back‑end provisioning can lag.Carrier says the eSIM is “already in use”:Remove/deactivate the old profile and ask the carrier to reset/reissue the activation.Need the EID:Find it in Settings > About phone > Status > EID. Share it with support if requested.Lost or wiped old phone:Contact your carrier to revoke the old eSIM and issue new activation details. You do not need the old device to activate on the new one.If you’re setting up for a work trip and need multiple lines for staff, our team can help streamline provisioning via For Business. Partners and resellers can access tools and support via the Partner Hub.Example: setting up a travel eSIM alongside your home lineKeep your home eSIM active for calls/OTP.Add a travel data eSIM like Esim United States before you fly.On arrival, set the travel eSIM as the data SIM, keep data roaming off on your home line.Test WhatsApp/Maps and a quick speed test on Wi‑Fi first, then on mobile data.If your phone drops to 4G with two SIMs active, that’s normal on some models; if you need 5G, temporarily disable the inactive SIM.FAQ1) Can I export my eSIM profile to a file and import it on the new phone? - No. For security, Android does not allow exporting eSIM profiles to files. Use device‑to‑device transfer (if supported) or re‑activate via QR/SM‑DP+.2) Do I need my old phone present to transfer eSIM? - Only for device‑to‑device transfers. If the old phone is unavailable, ask your carrier to reissue activation details and use the SM‑DP+ method.3) Will dual‑SIM affect my 5G or battery life? - Possibly. Some phones limit 5G when two SIMs are active. Dual standby also uses slightly more power. If you need maximum speeds, disable the unused SIM temporarily.4) How many eSIMs can I store? - It varies by model (often 5–8 stored). Typically only one or two can be active at the same time. Check your device specs.5) Will WhatsApp, banking and OTPs still work after I move my eSIM? - WhatsApp links to your account, not the SIM, but ensure you keep your number and have backups. For OTPs, keep your home line active for SMS; confirm roaming is off if you want to avoid data charges.6) Does eSIM reactivation cost money? - Some carriers charge a small fee to reissue or move an eSIM. Policies vary—check your provider’s terms before you start.Where to nextSet up your travel line now so it’s ready when you land. Browse country and regional options on Destinations, including favourites like Esim United States, Esim France and Esim Western Europe.

30 Oct 2025

SIM‑Swap & Account Takeover: Prevention Tips for Travellers

Staying connected abroad shouldn’t put your identity at risk. Yet SIM‑swap fraud and account takeovers spike when people travel. Why? Attackers know you’ll be in transit, juggling time zones, relying on roaming, public Wi‑Fi and unfamiliar numbers. If they convince a carrier to reassign your number (a SIM‑swap), they can intercept SMS one‑time codes and reset your logins—often within minutes. This guide gives you practical, step‑by‑step defences you can set up in under an hour, plus what to do if you ever see suspicious “No Service” or sudden account alerts mid‑trip.We’ll focus on the highest‑impact moves for sim swap protection travel: enabling carrier account and port‑out PINs, turning on real‑time account alerts, tightening password hygiene and phishing detection, and knowing exactly when to contact your carrier. We’ll also show how travel eSIMs, used alongside your primary number, can reduce exposure without breaking your banking or messaging flows. Whether you’re off to the US, France, Italy or Spain, explore reliable eSIM options via Destinations and keep your number—and identity—yours.What is SIM‑swap and why travellers are targetedA SIM‑swap (also called port‑out fraud) happens when someone persuades your mobile carrier to move your number to a SIM or eSIM they control. Once that happens, they can: - Receive SMS one‑time passwords (OTP) meant for you - Reset email, bank, crypto, travel or social accounts - Trigger password resets using your number as a recovery method - Approve fraudulent transactions that rely on SMS codesTravellers are prime targets because: - You’re harder to reach and slower to respond to alerts - Roaming can mask “No Service” blips and strange SMS messages - You’re more likely to use public Wi‑Fi and unfamiliar networks - You may depend on SMS for banking while abroadPro tip: SIM‑swap is often the second step. The first is phishing—stealing enough info (name, number, DOB, last digits of ID) to convince a carrier. Stopping the phish often stops the swap.Before you fly: lock down your number and accountsTreat your mobile number like a bank account. These steps take 30–60 minutes and block most SIM‑swap attempts.1) Add carrier security controlsSet a strong carrier account password and memorable passcode.Enable a port‑out PIN or number lock/freeze (names vary by carrier). This prevents transfers without the PIN—even if someone knows your personal details.Turn on SIM PIN on your device. This protects your physical SIM if your phone is lost or stolen. Note: it won’t stop a remote carrier‑initiated SIM‑swap by itself.Disable or PIN‑protect voicemail, especially “reset by voicemail” features.Pro tip: Save your carrier’s fraud and international support numbers offline (notes app, paper, or password manager). If you lose service, you’ll need another line to call them.2) Move critical accounts off SMS 2FASwitch your email, cloud storage, bank, social and travel accounts to an authenticator app, hardware key or passkeys.Remove your phone number as a recovery method where possible; add a second email instead.Download and print backup codes for top accounts; store them securely.Pro tip: Your email is the “master key”. Secure it first with an authenticator or passkey before anything else.3) Turn on real‑time alertsCarrier: login attempts, SIM changes, password changes, new lines added.Email: new logins, forwarding rules added, recovery methods changed.Bank/fintech: new device logins, password changes, large transactions, payee changes.4) Upgrade password hygieneUse a password manager to create unique, 16+ character passphrases.Enable Travel Mode (if your manager supports it) to carry only what you need.Update OS and apps; enable device‑wide screen lock and Find My/remote wipe.Smarter connectivity choices on the roadUsing a travel eSIM can reduce risk by separating your data from your primary number.Keep your primary line active but restricted to calls/SMS only if you still need bank texts. Use a travel eSIM for data and apps.Alternatively, keep your primary number off (or on “no data”) and shift logins to app‑based authentication.Prefer secure messaging apps tied to your account rather than your phone number for travel coordination.Explore regional options: - United States: Esim United States - France: Esim France - Italy: Esim Italy - Spain: Esim Spain - Multi‑country: Esim Western Europe or Esim North AmericaPro tip: eSIM reduces the risk of physical SIM theft, but it doesn’t eliminate carrier‑level SIM‑swaps. Keep those carrier PINs and locks enabled.Spot the red flags: phishing and social engineering on the moveExpect tailored lures while travelling. Common examples: - “Your roaming bill exceeds $500. Verify now.” - “We’ve blocked your SIM for unusual activity. Confirm to restore.” - “Bank alert: new device login in [your destination]. Enter the code we just sent.” - Fake delivery or airline messages with urgent links - “Apple/Google/Meta: your account will be disabled. Appeal here.”How to verify safely: - Do not click links in unsolicited texts/emails. Open the carrier/bank app directly or type the URL. - Check sender details. Short codes vary by country; inconsistency is a clue. - Look for subtle misspellings, odd grammar or mismatched domains. - Treat unexpected one‑time codes as a sign someone is trying to log in as you.Pro tip: If a caller claims to be your carrier and asks for your port‑out PIN or full password, hang up and call the official number you saved earlier.When to contact your carrier (and exactly what to say)Contact your carrier immediately if any of the following occur: - Sudden “No Service” on your primary line while others have signal - Multiple “Your SIM has been changed/activated” messages - Password reset texts you didn’t request - Banks/email warn about login attempts from your home country while you’re abroadWhat to ask: - “Place an immediate freeze/number lock on my line; disable port‑out.” - “Reverse any SIM change and issue a new SIM/eSIM tied to my account.” - “Add a permanent port validation PIN on file; require it for any changes.” - “Notify me of all account changes by email and app push.” - “Confirm recent changes and provide a record of the activity.”Pro tip: From abroad, contact via carrier app over Wi‑Fi or your travel eSIM data. Keep your identity docs and account PIN ready.Step‑by‑step: If you suspect a SIM‑swap right now1) Get online another way - Use hotel Wi‑Fi, a companion’s hotspot or your travel eSIM for data. - Avoid logging in over unsecured public Wi‑Fi without a trusted VPN.2) Lock your number - Log into your carrier account; change the password and enable any number lock/port‑freeze features. - If you can’t log in, call the carrier’s fraud line and ask them to freeze/restore the line.3) Secure your “master” accounts - Change your email password; enforce authenticator or passkeys. - Review account recovery settings; remove phone number as a recovery method if safe to do so.4) Stop the financial fallout - Open your banking apps directly; review recent transactions and devices. - Temporarily freeze cards or accounts if anything looks off; call the bank from the app or listed number.5) Rotate other critical logins - Cloud storage, password manager, messaging, crypto, travel/airline accounts.6) Document and follow up - Note times, alerts, and support ticket numbers. - Ask the carrier to investigate and to keep the port‑freeze in place.After you return: keep the locks onLeave the port‑out PIN/number lock enabled permanently.Keep SMS as a last‑resort recovery only; prefer authenticators/passkeys.Review your phone number’s usage in accounts and remove where not essential.Maintain alerts on carrier, email and banking accounts.Revisit your eSIM setup for your next trip via Destinations.For teams on the move, centralise travel connectivity and security policies with For Business. Travel brands and TMCs can streamline secure eSIM distribution via our Partner Hub.Traveller checklist (quick recap)Before departure - Enable carrier account password, account PIN and port‑out PIN/number lock - Turn on SIM PIN; disable or PIN‑protect voicemail - Move key accounts to authenticator/passkeys; print backup codes - Turn on alerts for carrier, email, and bank - Update OS/apps; enable device lock and remote wipe - Save carrier fraud and international support numbers offlineWhile abroad - Use a travel eSIM for data; keep your primary number restricted if needed - Avoid SMS 2FA where possible; use app‑based approvals - Treat unsolicited links and OTPs with suspicion - Verify carrier/bank messages in their official appsIf something feels wrong - Sudden “No Service” + password reset texts = call your carrier now - Lock your line, secure email, check banks, rotate critical passwordsFAQ: sim swap protection travelQ1) Does using an eSIM stop SIM‑swap? - No. eSIM reduces physical SIM theft but carriers can still reassign your number. The real protection is carrier PINs/number locks, strong account passwords and non‑SMS 2FA.Q2) What’s the difference between a SIM PIN and a carrier port‑out PIN? - A SIM PIN protects the SIM on your device. A port‑out PIN (or number lock) is stored with your carrier and is required to move your number to another SIM/eSIM. You need both.Q3) Should I use SMS for two‑factor authentication while travelling? - Only if you must. Prefer authenticator apps, hardware keys or passkeys. If you rely on SMS (e.g., for your bank), enable carrier locks and alerts and keep your primary line reachable but tightly controlled.Q4) I’ve lost service abroad. How do I tell if it’s a SIM‑swap or normal roaming issue? - Check: do other travellers have service? Did you receive SIM change/reset texts or emails? Can you still use data on your travel eSIM? If yes to these clues, contact your carrier’s fraud line immediately and lock your number.Q5) Will a travel eSIM affect my banking texts? - No—your primary number remains your primary. A travel eSIM just handles data. You can keep the primary line active for SMS, or switch banks to app‑based approvals before travel.Q6) I’m travelling across multiple countries. What’s the simplest secure setup? - Use a regional eSIM (e.g., Esim Western Europe or Esim North America) for data, keep carrier locks on your primary number, and rely on authenticator/passkeys instead of SMS wherever possible.Next step: Plan your route and add a regional eSIM with built‑in flexibility. Explore options by country and region on Destinations.

30 Oct 2025