How to Install and Activate an eSIM on Android

With the widespread adoption of eSIM technology, more and more Android smartphones now support connecting to mobile networks without a physical SIM card, simply by scanning a QR code. Whether you are traveling abroad, on a business trip, or looking for a backup data plan, eSIM is currently one of the most convenient connectivity solutions available. This guide will walk you through everything you need to know, from installation to activation and troubleshooting.

Things You Must Confirm Before Installing an eSIM on an Android Phone

✅ Your phone supports eSIM
✅ Your phone is not carrier-locked
✅ Android system version is Android 11 or later
✅ You are connected to a stable Wi-Fi network
⚠️ Do not install an eSIM on an airplane, in the subway, or in an environment with unstable network connectivity
⚠️ Some China mainland Android models may have eSIM functionality disabled. If you are unsure, search for “eSIM” directly in your phone’s settings

How to Check Whether Your Android Phone Supports eSIM

Method : Check in Phone Settings (Recommended)

1. Open Settings
2. Go to Network & Internet / Connections
3. Tap SIM Cards / Mobile Network

Look for one of the following options: Add eSIM / Download SIM / Add mobile plan (eSIM), if you see any of the options above, your Android phone supports eSIM.

Complete Steps to Install eSIM on an Android Phone

Step 1: Enter the eSIM Setup Page

1. Open Settings
2. Tap Connections / Network & Internet, or whatever is similar on other device models.
3. Go to SIM manager
4. Tap Add eSIM 

Step 2: Scan the eSIM QR Code

1. Select Scan QR code
2. Use your phone to scan the eSIM QR code you received
3. Wait while the system downloads the eSIM profile (usually 10–30 seconds)

Step 3: Confirm and Complete Installation

1. You'll see a message saying “Adding mobile plan", tap Confirm / Enable
2. The eSIM will now appear in your SIM card list

📌 At this point, the eSIM is successfully installed, but may not yet be activated.

Android eSIM Activation and Usage Settings

1. Set the eSIM as the Primary Data SIM
   Go to: Settings → Connections / Network & Internet → Default Mobile Data → Select your eSIM plan（The system will display the newly added mobile network. Select it.)Tap the button to turn the eSIM on.
2. Enable Data Roaming 
   Most eSIMs, especially for travel, require data roaming to be enabled
   Go to: Settings → Connections / Network & Internet → eSIM → Data Roaming → Enable

   👉Enabling data roaming does not mean additional charges, it will only use the data included in your purchased eSIM plan.

3. Wait for Automatic Network Connection
   It usually takes 1-5 minutes for your phone to connect to the local network.
   This is normal! Initial connection might take a little longer.
   

Common Issues & Troubleshooting

1. QR Code Scan Failed / Invalid QR Code Message

Possible reasons:

• The QR code has already been used
• Unstable network connection
• Incorrect or blurry QR code image

✅ Solutions:

• Switch to a different Wi-Fi network
• Use the manual activation code input
• Contact customer support to request a new QR code

2. Installed Successfully, but No Internet Connection

Please check the following in order:

• Is data roaming enabled
• Is the eSIM selected as the default mobile data SIM
• Are you located within the plan’s coverage area
• Restart your phone once

Can I Delete the eSIM? Can I Reinstall It After Deletion?

❌ You can delete an eSIM, but once it’s deleted, it cannot be reinstalled.

If you need to change devices, contact the seller in advance.

Important Notes When Using an Android eSIM (Avoid These Pitfalls)

⚠️ An eSIM can usually be installed only once
⚠️ Avoid resetting or switching SIM cards frequently
⚠️ It is recommended to install before departure and activate after arrival
⚠️ Be cautious before system updates or flashing the device