How to Install eSIM on Samsung Galaxy (One UI 6 Guide)

This guide is optimized for Samsung devices running One UI 5.0, 6.0, and newer.

📋 Prerequisites

• An unlocked Samsung phone (S20 series or newer).
• A stable internet connection (WiFi recommended).
• Your Roamiya QR code.

🚀 Installation Steps

1. Open Settings.
2. Tap Connections.
3. Tap SIM Manager.
4. Tap Add eSIM.
5. Select "Scan QR code from service provider".
6. Scan the code provided in your email. (Or tap the "Gallery" icon to upload a screenshot of the QR code).
7. Tap Add when prompted.

⚙️ Recommended Settings

To avoid roaming charges on your home SIM and ensure Roamiya works:

1. Set Primary Data SIM

In SIM Manager, look for the "Preferred SIMs" section:

• Calls: Primary SIM (Keep your home number).
• Messages: Primary SIM.
• Mobile status: eSIM (Select your new Roamiya plan).

2. Enable Data Roaming (Crucial!)

1. Go back to Connections.
2. Tap Mobile Networks.
3. Ensure Data Roaming is toggled ON ✅.

Note: On some Samsung models, this is a global setting. On others, you enable it per SIM. If per SIM, enable it ONLY for the Roamiya eSIM.

3. Turn Off "Auto Data Switching"

In SIM Manager, make sure "Auto data switching" is OFF. This ensures your phone doesn't sneakily switch back to your home SIM if the WiFi is weak.

✅ How do I know it works?

When you arrive at your destination:

1. Turn off Airplane Mode.
2. Wait 1-2 minutes.
3. You should see "4G", "LTE", or "5G" next to the signal bars.
4. Try opening a website browser.

❓ Common Issues

"QR Code already used" eSIM QR codes are one-time use. If you deleted the eSIM by mistake, it cannot be recovered. You will need to buy a new one.

"Registration Failed"

• Are you connected to WiFi?
• Is your phone unlocked?

Slow Internet? Check our Speed Troubleshooting Guide.