Run through the four quick checks first if this is your first eSIM.
1
Open your plan
In the Roamly app, open the My eSIMs tab and tap your plan. When it’s ready, the list says To install and the top of the plan page says Ready to install.
2
Tap Install, then Install on this device
Tap Install at the bottom of the plan page, then Install on this device.
3
Tap Setup
Android asks to set up your eSIM, and says some device information will be shared with Google and the network to do it. That’s normal. Tap Setup (some phones say Download, Add or Next).
4
Follow the prompts
Android asks a couple of questions. Name the SIM something you’ll recognise, like Roamly or the country you’re visiting, and keep your normal SIM for calls and messages if asked. Roamly is data-only.
5
Leave the Roamly SIM off until you land
When Android confirms the eSIM is installed, open Settings → Network and internet → SIMs (Samsung: Settings → Connections → SIM manager), tap the Roamly SIM and make sure Use this SIM is off. The plan won’t start until you turn it on and connect at your destination.
6
Turn off Roaming on your normal SIM
While you’re still at home: on the same SIMs screen, tap your normal SIM and turn Roaming off (Samsung: Settings → Connections → Mobile networks → Data roaming). That’s the switch that stops your home carrier charging you overseas. If you won’t need calls or texts on your number while you’re away, you can turn Use this SIM off for that SIM instead; it comes back exactly as it was when you switch it on at home.
Back in the app your plan now shows Installed. That’s it until you fly.
When you land
Three switches get you online: turn the Roamly line on, select it for mobile data, and turn on Data Roaming for that line only. Follow Just landed? How to activate your eSIM; the app shows the same steps on your plan page once the eSIM is installed.Something not working?
- No Install button? Your plan is still being set up — it usually takes under five minutes. See I paid but can’t see my eSIM.
- Tapping Install on this device did nothing? A few phones don’t support one-touch setup. Copy the code from More → Technical → Manual activation on your plan page, then follow Install with a QR code or manual setup.
- Android showed an error? See My eSIM won’t install.