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Troubleshooting & travel tips
Tap to expand🧭 Before you land — practical tips
- ✈️ Turn off your home SIM's data roaming before you land — the eSIM only handles data, so accidental roaming still bills your home line.
- 🔑 Data-only eSIMs cannot receive bank / OTP text messages. Enable app-based 2FA (Authy, Google Authenticator) before you fly.
- 🧳 Install and activate the eSIM on home Wi-Fi, but wait to turn onthe line until you land — most providers start the validity clock on first network attach, not on install.
- 📶 Set the eSIM as your default "Cellular Data" line and keep your home SIM for calls/SMS. iMessage and WhatsApp still work over data.
📵 No service after installing? Try this in order
- Confirm the line is turned on. iPhone: Settings → Cellular → tap the travel line → toggle Turn On This Line. Android: Settings → Connections/SIMs → enable the travel eSIM.
- Set it as the Data line (not Default Voice). Cellular Data → pick the travel eSIM. Leave calls/SMS on your home SIM. Turn Data Roaming ON for the travel line only.
- Toggle Airplane mode for 30 seconds. Forces the phone to re-scan and attach to the strongest local tower.
- Reboot the phone. A full power-off (not just lock screen) clears stale carrier state — fixes ~40% of "no service" cases.
- Check APN is on Automatic. Cellular → the travel line → Cellular Data Network → tap Reset Settings. Only enter a manual APN if the provider explicitly gave you one.
- Give it 10 minutes on first attach. New eSIM profiles can take several minutes to provision when you land — especially at busy airports.
- Verify you're in a supported country. Regional plans (e.g. Asia, Europe) don't always cover every country in the region — double-check the provider's coverage list.
- Last resort: remove and reinstall. Only if the provider's app confirms the plan is active. Reinstalling burns a QR — keep the manual activation code handy.
Still nothing? Contact the provider's support with your ICCID (Settings → About → the travel line) — they can force a re-provision from their side.
📡 Local network tips
Carriers: Orange, Telekom, O2
- 📡 Manually latch on to a network if auto-select fails. iPhone: Cellular → travel line → Network Selection → turn Automatic off and pick a listed carrier. Android: Mobile networks → Network operators → Search. Try the provider's partner carrier first.
- 🐢 If speeds drop, toggle Airplane mode for ~10 seconds to re-attach to the strongest local tower rather than reinstalling the eSIM.
- 🛠️ Leave APN on "automatic" unless the provider explicitly gives you one — a manual APN is the most common cause of "no data" after activation.
- 🔋 5G drains battery faster. If you don't need it, force 4G/LTE in Cellular settings to stretch battery on long transit days.