Before scanning the QR code, check three things: the exact phone supports eSIM, it is unlocked for another carrier, and you know when the pack starts. Some packs start on installation, so “install before departure” is not a rule you can apply to every purchase. Airalo explains both activation patterns.
Install and label the line
- Connect to reliable Wi-Fi. Keep the order email or provider app open on another screen if you need to scan its QR code. Treat the QR code as private access to your plan.
- On iPhone, use Settings → Cellular/Mobile Data → Add eSIM, or the provider’s supported app installation. Follow Apple’s travel setup; menu wording varies by iOS version.
- On Pixel, use Settings → Network & internet → SIMs → Add SIM and the eSIM setup option. Google’s instructions also cover choosing separate SIMs for calls, texts and data. On other Android phones, search Settings for “SIM manager” or “Add eSIM”.
- Name the new line after the destination, for example “Japan data”, and keep your usual line clearly labelled. Do not accept a number-change prompt in a messaging app unless you intend to change the registered number.
At the destination
- Turn the travel line on and select it for mobile data. Enable data roaming on that line if the provider requires it.
- Turn data roaming off on your main line and review automatic data switching. Keep the main line on only for the services you need, after checking voice and SMS roaming charges.
- Switch Wi-Fi off briefly and load a simple webpage. Check the provider app shows an active pack, remaining data and the expected end date.
No data? Check in this order
- Confirm you are in a covered country, the correct line is selected and the pack is active. A line labelled “activating” before arrival may simply lack its destination network.
- Toggle airplane mode, then try the provider’s documented network and APN settings. Do not copy an APN from a different brand.
- Contact support over Wi-Fi with the order reference, phone model, destination and a screenshot of the settings. Hide personal identifiers before posting publicly.
Do not delete the profile unless support confirms recovery for your exact product. Airalo’s standard eSIM guidance warns many profiles cannot be reinstalled; its new Airalo system permits same-device reinstalls through the app. The difference is the product you bought, not whether the phone has a signal.