Set up your eSIM

1. After purchase

Your eSIM will be delivered to the default email address provided with your payment. Open the secure install link in that order email. If you do not see it, check your spam or junk folder and your Promotions tab. It contains a private QR code and manual activation details.

2. Add the eSIM

iPhone: Settings → Cellular/Mobile Data → Add eSIM → Use QR Code.

Android: Settings → Network & Internet → SIMs → Add eSIM.

3. When you arrive

Select the Roamnessa eSIM for mobile data, then turn on Data Roaming for the Roamnessa eSIM. This is required for travel eSIMs to connect to partner networks. Keep data roaming off for your primary/home line if you do not want it to use mobile data abroad.

TROUBLESHOOTING

Slow speeds or weak signal

Performance can vary between available local networks. Work through these checks in order before deciding that a plan is persistently slow.

1. Confirm the eSIM is active for data. Make sure the Roamnessa eSIM is enabled and selected for Mobile Data, with Data Roaming on when required. Otherwise your phone may be trying to use your home line, Wi-Fi, or no data profile at all. Check the remaining allowance on your private installation page or in Account, because a low or exhausted allowance can also affect service.
2. Force the phone to register again. Turn Airplane Mode on for about 10 seconds, then off. Or restart your phone. This makes the phone leave and rejoin the local network after a setting or location change. Wait 1–2 minutes for registration before testing again.
3. Check from a stable location first. Airports, transit routes, underground areas, and buildings can have temporary weak coverage with every carrier. Once you reach the city or hotel where you will actually use data, give the phone a few minutes to register before deciding that service is persistently slow.
4. Try another available network. The same area can be slow on one carrier and good on another. Available partner networks may be listed in the package details where known. In the Roamnessa eSIM settings, open Network selection, turn off Automatic, keep that screen open while the available networks load, then test another provider. This can take several minutes. Turn Automatic selection back on if none connect.
5. Test 4G/LTE instead of 5G. Temporarily set the Roamnessa eSIM to 4G/LTE only in its mobile-network settings, then test again. Some roaming profiles work more reliably on 4G than 5G, especially outside large cities or where a 5G signal is weak. Return to your usual setting afterward if it does not help.
6. Check APN only when one was provided. The APN tells the eSIM how to reach mobile data. Under the private installation page’s Manual details, confirm any listed APN matches your phone’s APN exactly. Do not guess or replace an APN when no value was provided, because an incorrect APN can stop data from connecting.
7. Send us a useful speed test if the problem continues. If speeds remain poor in the same city after these steps, run the Cloudflare speed test ↗. Email a screenshot with your order email, city, device, and eSIM package to hello@roamnessa.com, so we can distinguish a location or network issue from a plan issue.

Important

Do not delete the eSIM after installation. Reinstallation and transfer support depend on the plan and device.