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Troubleshooting Connectivity

Complete these four steps in order for Samsung. The device article below explains each setting path in detail.

Step 1

Select the travel eSIM for data

Open Settings > Connections > SIM manager > Mobile data and choose the travel eSIM for mobile data. No manual APN setup is needed.

Mobile Data

Samsung

APN settings

Automatic. No manual setup needed.

Step 2

Set Data Roaming

Open Settings > Connections > Mobile networks > Data roaming. United States: keep Data Roaming off. All other countries: turn Data Roaming on.

United States

Roaming OFF

All other countries

Roaming ON

Step 3

Turn automatic network selection on

Open Settings > Connections > Mobile networks > Network operators. Turn Automatic Network Selection on. Only choose a network manually if automatic selection fails to connect.

Network Selection

Automatic ON

Use manual selection only if automatic selection fails to connect.

Step 4

Restart the phone

Hold the side key and volume down, choose Power off, wait 30 seconds, then turn the Galaxy phone back on. Then test a simple website before opening data-heavy apps.

restart device

AirplaneWait 30sPower on

No manual APN setup needed

APN settings are automatic. Do not manually enter data00.telnyx; it is no longer needed and can cause service instability.

SamsungInstall4 min

How to install an eSIM on a Samsung Galaxy

Install your travel eSIM on a Samsung Galaxy using a QR code or manual activation details, then leave the line ready for arrival.

01

Before you start

A Samsung Galaxy needs a steady Wi-Fi connection to download the eSIM profile. Turn off VPNs, content blockers, and hotspot-only Wi-Fi while installing.

  • Open the order email on a second device, tablet, laptop, or printed page.
  • Keep your phone charged and connected to Wi-Fi.
  • Use the phone settings app rather than a third-party QR scanner.

02

Install the eSIM

  1. 01Open Settings > Connections > SIM manager > Add eSIM.
  2. 02Choose the option to scan the QR code or choose the option to enter an activation code manually.
  3. 03On some Galaxy models, Add eSIM appears under SIM card manager or Mobile networks depending on One UI version.
  4. 04Wait for the phone to download and add the mobile plan.
  5. 05Name the line something obvious, such as Travel, and keep your primary SIM labelled separately.
  6. 06Leave the eSIM turned off for mobile data until you are ready to use the destination plan.

03

Set it up for travel

  1. 01When you arrive, open Settings > Connections > SIM manager > Mobile data and choose eSIM 1, Travel, Secondary, or the plan label shown on your phone for mobile data.
  2. 02Open Settings > Connections > Mobile networks > Data roaming. Set data roaming to OFF in the United States, and ON in every other country.
  3. 03Open Settings > Connections > Mobile networks > Network operators. Turn Automatic Network Selection on. Only choose a network manually if automatic selection fails to connect.
  4. 04Turn airplane mode on for 30 seconds, then turn it off to force a fresh network registration.

APN settings are automatic. Do not manually enter data00.telnyx; it is no longer needed and can cause service instability.

04

If the QR code will not install

  • Check that the eSIM is not already listed in your SIM settings.
  • Use manual activation details if the camera scan fails.
  • Try another Wi-Fi network if the download hangs.
  • Contact support before deleting anything from the phone.

Related

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