If you're about to travel or are already abroad and your cell phone isn't getting data, it's most likely that roaming is turned off or your plan doesn't have it enabled. Here are the steps in the order that usually solve the problem, from most common to least common, for Android and iPhone.
Quick Fix: How to Activate Roaming Now
To activate roaming, go to your phone's settings, find the network or mobile data option, and turn on the "data roaming" switch (sometimes it appears as "itinerancia" or "international roaming"). Your phone will search for a network again in seconds, and if your plan allows it, you can now use data outside your country.
If it still doesn't work after turning it on, check in this order, as it covers the most frequent causes first:
- Confirm your plan includes international roaming. The phone's switch only opens the door; if your local plan doesn't have roaming contracted or active, it won't transmit data even if it's on. This is checked in your carrier's app or website, not on the phone.
- Activate data roaming in Settings. On Android, it's usually in Mobile networks or SIMs; on iPhone, in Mobile Data → Mobile Data Options → Data Roaming. Full steps are below.
- Restart your phone or manually search for the network. Sometimes the switch is already on but the phone is "stuck" on automatic search. Restarting or forcing a manual network search usually unblocks it.
- Check the APN. If you have data in your country but none abroad, the Access Point Name (APN) may need adjustment. Your carrier resolves this, or if you use a data eSIM, it configures itself upon installation.
Activate Roaming on Android Step-by-Step
The exact path changes slightly depending on the brand (Samsung, Motorola, Xiaomi), but the concept is the same for all:
- Open Settings.
- Go to Network & Internet or Connections.
- Tap SIMs or Mobile networks.
- Select the line you will use abroad (if the phone has two SIMs or a physical SIM plus an eSIM).
- Activate the Roaming or Data Roaming switch.
In some models with their own interface layers (e.g., Samsung's One UI or Xiaomi's MIUI/HyperOS), the menu is named differently or is one level deeper, within "Data usage" or "More network settings." If you can't find it, use the internal search in Settings and type "roaming."
Activate Roaming on iPhone Step-by-Step
On iOS, the path is more consistent across models:
- Open Settings.
- Tap Mobile Data (or Cellular Data, depending on the system language).
- If you have more than one line (physical SIM + eSIM), select the one you will use while traveling.
- Go to Mobile Data Options.
- Activate Data Roaming.
It's also worth checking, on the same screen, that the correct line is marked as the one used for primary mobile data, and that airplane mode is off before trying to connect.
| Step | Android | iPhone |
|---|---|---|
| Entry Menu | Settings → Network & Internet / Connections | Settings → Mobile Data |
| Submenu | SIMs / Mobile networks | Mobile Data Options |
| Switch to Activate | Roaming / Data Roaming | Data Roaming |
| When the Path Varies | Depending on the brand (Samsung, Xiaomi, Motorola) | Practically the same on all compatible models |
How to Tell if Roaming is Already Activated
To confirm it without guessing, there are three signs you can check directly on your phone. The first is the switch itself: if it appears blue or green in Settings (depending on the system), it's on. The second is the icon in the top bar, which on most phones shows "R" or "Roaming" next to the network name when you're connected outside your country. The third is the most reliable: open your browser with mobile data (not Wi-Fi) and try to load a page; if it loads, roaming is not only activated, it's working.
If the switch is on but the network icon doesn't appear and pages don't load, the problem is no longer a configuration issue but a connection issue, and that's resolved in the next section.
Roaming Activated but No Signal: What to Check
Roaming almost never fails because the phone is broken or misconfigured: it's almost always because the plan contracted in your country doesn't include data abroad, and that can't be fixed from Settings.
Before assuming your phone has a problem, rule this out in order:
- The plan does not include data roaming. This is the most frequent cause. The phone's switch turns on a function that your carrier must have enabled on the other side.
- You are in airplane mode or with data saver active. Both block the connection even if roaming is on.
- The phone is still "stuck" on the home network. If you've already activated roaming and several minutes have passed with no signal, go to network selection (on Android: Mobile networks → Network operators; on iPhone: Mobile Data → Network selection) and change from automatic to manual. Choose any available network, wait for it to connect, and then switch back to automatic. This forces the phone to re-search for a network from scratch, something a simple restart doesn't always achieve.
- The phone is locked to a carrier. Some phones purchased with a plan or subsidized by a carrier are locked, which can limit which roaming networks they accept.
Why Each Carrier Names Roaming Differently
This explains why searching "how to activate Personal roaming" or any other carrier sometimes yields nothing useful: the name each carrier uses in its app or website (e.g., "international roaming," "itinerancy," or "data abroad") is just how they communicate whether your plan includes it. The switch that actually turns on the function is always in the phone's settings, not in the carrier's app, and that step is the same regardless of whether your carrier is called Personal, Claro, Movistar, Tigo, or Entel.
In other words: the carrier's app tells you if you can use roaming; the phone is what turns on roaming. These are two distinct steps and both need to be addressed.
What to Expect from Your Carrier's Roaming When Traveling
With roaming activated and your plan up to date, your phone will typically connect to a local network in the country you're in through an agreement between your carrier and one or more carriers in that destination. This coverage depends exclusively on the agreements your carrier has in each country: it can be good in frequent destinations and very limited or nonexistent in others.
Regarding cost, each carrier manages its own conditions (some include it in certain plans, others charge per day or per consumption), so it's advisable to confirm it directly with your carrier before traveling instead of assuming a price. What you can anticipate is that, as it is a service that depends on agreements between two carriers, activating it or resolving a problem can take more than a few minutes if it requires management on your carrier's side.
Carrier Roaming vs. Data eSIM: Comparison
When carrier roaming works well, there's no need to change anything. The typical problem arises when the plan doesn't include it, coverage at the destination is weak, or resolving an issue involves procedures you can't do from abroad. That's where understanding the difference with an international data eSIM comes in handy, which is an independent digital profile installed on the same phone without touching the main line.
| Aspect | Home Carrier Roaming | International Data eSIM |
|---|---|---|
| What Activates the Connection | A prior agreement between your carrier and a local one at the destination | An independent data profile installed on the phone |
| Activation Time | Depends on whether the plan already includes it or needs to be managed with the carrier | Approximately 1 minute once installed |
| Coverage | Limited to your carrier's roaming agreements in each country | More than 200 destinations available |
| Validity for Activation | Depends on the contracted plan | 180 days from purchase to activate it |
| Support if Something Fails | Your local carrier's, with its own channels and hours | 24/7 in all languages via email and WhatsApp |
| Affects Your Main Line | Yes, uses the same number and plan | No, it's a separate data profile |
When to Stop Fighting with Roaming
If you've followed the previous steps and roaming still isn't working, or if your carrier simply doesn't have good coverage in your destination, insisting on phone settings ceases to make sense: the problem isn't there, it's in the agreement (or lack thereof) between carriers. In that case, an international data eSIM solves a different problem: instead of relying on your carrier having an agreement with a local one, you install a data profile made specifically for the destination, with international eSIM plans for over 200 destinations.
Before deciding, it's a good idea to understand exactly what an eSIM is, confirm that your phone is eSIM compatible, and review the practical difference between eSIM and roaming to know which is best depending on how you travel.
Frequently Asked Questions
How do I activate Personal roaming?
The same as with any carrier: first confirm with your carrier that your plan includes international roaming, and then activate the "data roaming" switch in your phone's Settings (Android or iPhone). The name your carrier's app uses to refer to roaming doesn't change this step, which is always done from the phone's settings.
How do I activate roaming for abroad before traveling?
You can activate it before leaving your country: go to Settings, turn on data roaming, and leave it on. It doesn't consume data differently while you're in your country; it simply gets ready to connect as soon as your phone detects a network at the destination.
Are data roaming and voice roaming the same?
No. Data roaming allows you to use the internet (apps, browsing, data messaging) and voice roaming allows you to make and receive calls over the traditional cellular network. They are activated separately on some phones and carriers, although many plans include them together.
Does it cost anything just to have roaming turned on?
Having the switch activated on your phone does not generate charges on its own while you are in your country. The cost depends on your plan's conditions and whether you actually use data or make calls abroad, so it's advisable to confirm this with your carrier before traveling.
Why does roaming turn off automatically when I restart my phone?
It doesn't normally turn off automatically; what usually happens is that the phone automatically searches for a network again after restarting, and if it takes time to find one, it might seem like roaming has been deactivated. Check the switch in Settings to confirm.
Does roaming work the same with an eSIM as with a physical SIM?
The concept of activating the data roaming switch is the same for both. The difference is that an international data eSIM is designed as a separate profile, dedicated only to data at the destination, whereas roaming on a physical SIM usually uses the same line and plan from your home country. You can check the complete difference between eSIM and physical SIM.
Do I need to activate roaming if I already have an international data eSIM?
Not for that eSIM: the international data profile works independently and does not depend on your main line's roaming switch. That switch only affects your home carrier's SIM or plan. If you have questions about installing it, this eSIM installation guide covers the process step-by-step.
Conclusion
Activating roaming is, on most cell phones, a matter of a switch in Settings: Android in Mobile networks or SIMs, iPhone in Mobile Data → Mobile Data Options. The step most people skip is not that one, but rather confirming with their carrier beforehand that their plan actually includes international roaming, because without that, the switch has nothing to turn on. If you've already checked all this and your carrier's roaming still doesn't cover your travel destination, or you simply prefer not to depend on their coverage agreements, an international data eSIM solves the same problem from another angle: it activates in approximately 1 minute, covers more than 200 destinations, and you have 180 days from purchase to activate it when you need it, with 24/7 support in all languages via email and WhatsApp if something doesn't go as expected. For a more comprehensive guide on the entire data travel process, you can also check the ultimate eSIM travel guide or how to resolve the most common eSIM problems if you already use one.
