eSIM activation troubleshooting

First, the fault tree in one table

Before you leave

The profile will not download

Installation pulls the profile from a provisioning server over the internet, so it fails without a connection. Do it on home wi-fi. If the phone reports that the plan cannot be added, work through the causes in order: no connection, a code that has already been redeemed on another handset, an unsupported or carrier-locked device, or a temporary provider-side outage. Apple documents the device-side checks in its eSIM setup troubleshooting article, and the install path on Android is Settings, then Network and internet, SIMs, Add SIM, Set up an eSIM per Google's Pixel help pages.

A carrier lock is the cause people miss, because the profile often installs and then refuses to connect, which looks like a broken eSIM. Confirm your handset is unlocked and eSIM capable using our device compatibility guide before blaming the provider.

App-based installs need the app to work

Of the providers we track, Saily and Maya Mobile install through their own apps rather than a QR code. That is smoother at home and riskier abroad, because you now depend on the app reaching its servers from inside the destination country. Our country notes flag the known cases: in Turkey, Saily warns its app may be blocked and Ubigi states its own site and app are inaccessible from within the country, and Saily eSIMs cannot be purchased from inside the UAE at all. Install and log in before you fly, without exception.

The moment you land and nothing happens

This is the most common scenario and it is almost never a faulty eSIM. Work down the list in order and stop when the data appears.

1. Turn the travel line on. Installing a profile does not enable it. Open your line settings and check the travel line is switched on and your home line is either off or at least not the data line.
2. Turn data roaming on for that line. Travel eSIMs are technically roaming profiles, so the roaming switch must be on for the travel line. It is a per-line setting, so leave it off on your home line.
3. Set it as the mobile data line. A phone can show two lines with full bars and still be routing data through the wrong one.
4. Cycle aeroplane mode. Thirty seconds on, then off. This forces a fresh network scan, which matters because your phone may still be holding on to a network it registered with on landing.
5. Select the network manually. If automatic selection is stuck, choose a network by hand from the list. Your provider states which local operators the profile can use, and picking one directly often resolves a stubborn registration.
6. Restart the phone. Last on the list because it is a blunt instrument, but it clears registration state that nothing else will.

Signal, but no data at all

If the phone shows bars on the travel line but pages will not load, the line has registered with the network and the data path has not come up. The usual culprit is the APN, the access point name that tells the phone which gateway to use for data. Most travel eSIMs push this automatically, and occasionally the push fails.

Every provider publishes its APN. Find it in your order confirmation or the provider help centre, then enter it under the mobile data network settings for the travel line specifically. It must match exactly, including case, and most travel APNs need no username or password. If you have edited it and it still fails, delete the entry and let the phone reset to the default rather than layering another guess on top.

One more overlooked setting on iPhone: turn off automatic mobile data switching before you travel. Left on, the phone can quietly fall back to your home line, which both hides the eSIM problem and produces a roaming bill.

It worked, then it stopped

Three things end a working connection, and only one of them is a fault.

• Allowance used. Check remaining data in the provider app or account page before assuming anything is broken.
• Validity expired. Plan days normally start at first connection, not at purchase, so a fifteen-day plan bought three weeks before departure is usually fine - but confirm your provider's rule, which is covered in buying an eSIM before you fly.
• Throttled, not dead. On an unlimited plan a sudden collapse in speed at a consistent time of day is the fair use policy doing its job. Nomad publishes 512 kbps after its daily allowance, Saily 1 Mbps and Ubigi 2 Mbps - what unlimited really means explains what each speed can still do.

When nothing works

Raise it with the provider while you are still travelling. This is not politeness, it is policy: Holafly requires connection-issue claims to be made during the trip, and several providers restrict refunds to plans that were never activated. Deleting the profile in frustration is the worst move available, because most travel profiles install once and cannot be reinstalled without the provider reissuing them.

Take screenshots of the settings screens and any error message before you contact support, and keep the order reference to hand. In the meantime, a cheap short plan from a second provider will get you online while the first is resolved. Refund positions vary widely between providers and are summarised on our how we compare page.

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