eSIM Android Troubleshooting

Enable All Necessary Permissions and Disable Certain Settings

For proper eSIM functionality on your device, ensure the following permissions and settings are enabled:

1. Enable Mobile Data: Go to Settings → Connections → Mobile Networks → Turn on Mobile Data.

2. Enable Data Roaming: Go to Settings → Connections → Mobile Networks → Turn on Data Roaming.

3. Disable Airplane Mode (Flight Mode): Go to Settings → Network & Internet → Airplane Mode (or Flight mode) → Turn off Airplane Mode (Flight mode).

4. Enable Location Services: Go to Settings → Security & Location → Location → Turn on Location.

 

APN Configuration on Android

1. Go to Settings → Connections → Mobile Networks → Access Point Names (APN).

2. Add a new APN.

• 2.1. Name: Enter your carrier's name (e.g., TooSIM).

• 2.2. APN: Set it to "Internet".
• 2.3. APN Type: Set it to "Default".
• 2.4. Save the settings.

4. Go back to the APN settings and ensure the new APN is selected as the primary APN. You may need to restart your device or toggle Airplane Mode for 1-2 minutes.

 

Blocked Services and Permission Settings on Android

• 1. Battery Optimization: Go to Settings → Apps & Notifications → Special Access → Battery Optimization → Disable optimization for eSIM-related apps.
• 2. Background Data Access: Go to Settings → Apps & Notifications → All Apps → Select the required app → Data Usage → Enable Background Data.

 

Issues During eSIM Activation

• 1. Stable Wi-Fi Required: Ensure you have a stable Wi-Fi connection during eSIM activation.

• 2. Check Necessary Permissions: Ensure all required permissions are enabled (see above).
• 3. Insufficient Device Storage: Ensure there is enough free storage on your device (typically 1-2 MB).
• 4. Carrier-locked Device: If your device is carrier-locked (e.g., purchased from Vodafone, AT&T, Verizon), it will only work with that carrier's plans. Follow the unlock instructions below.
• 5. Incorrect Date and Time Settings: Ensure your date and time settings are correct, as eSIM activation and operation require synchronization with carrier servers.
• 6. eSIM Profile Limitations: Devices support up to 10 eSIM profiles. Ensure you haven't reached this limit.

 

How to Unlock Your Smartphone for eSIM Activation

• 1. Get an Unlock Code: Contact the carrier from which you purchased your device and request an unlock code. You may need your IMEI number and account information. You can find the IMEI number by dialing *#06# on your device or by going to Settings → About Phone → Status → IMEI.

• 2. Enter the Unlock Code: Insert a SIM card from a different carrier into the device. When prompted, enter the unlock code provided by your carrier.

 

Troubleshooting Tips and Simple Solutions

• 1. Airplane (Flight) Mode Enabled: Disable Airplane (Flight) Mode if it's enabled.

2. Conflict Between Physical SIM and eSIM: Temporarily remove the physical SIM card to resolve conflicts.

3. Mobile Internet Not Enabled: Go to Settings → Connections → Data usage → Turn on Mobile Data.

4. Check eSIM Profile: Ensure the eSIM profile is selected for mobile internet usage: Settings → Connections → SIM manager → Select eSIM.

5. Enable Data Roaming: Go to Settings → Connections → Mobile Networks → Turn on Data Roaming.

6. Enable eSIM All Network: Go to Settings → Connections → Mobile Networks → Network Mode SIM 1 →.Select 'All networks'.

 

eSIM Not Working After Installation

If eSIM does not work after installation, despite your device supporting eSIM:

• 1. Check Android Version: Ensure your device is running the latest version of Android. The minimum version for eSIM support is Android 9.0 (Pie).

• 2. Restart Your Device: Restart your device or toggle Airplane Mode on and off. Some models require this step to apply changes.
• 3. Check All Necessary Permissions: Verify that all necessary permissions and settings are enabled (see above).
• 4. Disable VPN or Antivirus: VPN or antivirus software might interfere with eSIM connectivity. Disable them temporarily, restart your device, and check eSIM functionality.
• 5. Carrier and eSIM Compatibility: Ensure the eSIM you purchased matches the carrier settings on your device. If there is a mismatch, contact support for a replacement eSIM.
• 6. Background Data Services: Make sure background data services are not blocked (see above for how to unblock).
• 7. Power Saving Mode: Power saving mode can limit mobile data usage, affecting eSIM. Disable power saving mode if necessary.
• 8. Incompatible Applications: Some applications, especially those managing network connections like proxies, VPNs, or antivirus software, may be incompatible with eSIM. Disable or uninstall these apps and check eSIM functionality.
• 9. Battery Issues: Battery problems, such as overheating or low charge, can affect eSIM performance.
• 10. App or Service Conflicts: Conflicts between apps or services can hinder eSIM functionality. Disable or uninstall suspicious or unnecessary apps and check eSIM performance.
• 11. Out of Coverage Area: Ensure the eSIM you purchased is for the country you are currently in. eSIMs won't work outside their designated coverage areas.

 

Other Issues

1. Call Issues After eSIM Installation: If calls do not work after eSIM installation and you need to revert to your physical SIM for voice calls: Go to Settings → Connections → Mobile Networks → SIM manager → Select your physical SIM for Calls.