encryptSIM provides global, contract-free data without roaming fees. However, if you have an active physical SIM or another eSIM installed on your device, your phone may default to using your carrier’s network, which can lead to unexpected roaming charges. Follow these steps to ensure all your data traffic goes through encryptSIM and not your carrier.

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1. Disable Roaming on Your Primary SIM

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If you’re using encryptSIM for data but still have a local carrier SIM installed for calls or texts, disable data roaming on your primary SIM to prevent accidental usage.

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For iPhone:

• Go to Settings > Cellular or Mobile Data.

• Tap your Primary SIM (carrier SIM).

• Toggle Data Roaming OFF.

• Ensure encryptSIM is set as your primary data line under Cellular Data.

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For Android:

• Go to Settings > Network & Internet > SIMs (or Mobile Networks).

• Select your Primary SIM (carrier SIM).

• Toggle Data Roaming OFF.

• Ensure encryptSIM is set as your primary data SIM under Preferred SIM for Mobile Data.

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2. Enable Data Roaming for encryptSIM

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Since encryptSIM connects to multiple networks worldwide, you must enable data roaming on encryptSIM for it to function properly.

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For iPhone:

• Go to Settings > Cellular or Mobile Data.

• Tap encryptSIM under Cellular Plans.

• Toggle Data Roaming ON.

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For Android:

• Go to Settings > Network & Internet > SIMs (or Mobile Networks).

• Select encryptSIM.

• Toggle Data Roaming ON.

3. Remove Your Physical SIM (Optional)

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If you don’t need voice or SMS from your home carrier while traveling, removing your SIM card ensures that your phone doesn’t automatically connect to a roaming network.

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4. Use encryptSIM for All Data Traffic

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• Go to Settings > Cellular/Mobile Data.

• Ensure encryptSIM is selected for mobile data.

• If your device has a “Preferred SIM for Mobile Data” option, select encryptSIM.

5. Enable Airplane Mode + Wi-Fi for Calling Apps

If you need to keep your carrier SIM for two-factor authentication (2FA), banking, or SMS, but don’t want roaming charges, enable Airplane Mode and turn on Wi-Fi to use calling and messaging apps like:

• Signal

• WhatsApp

• Telegram

• Google Voice

• iMessage (Apple Devices Only)

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6. Monitor Data Usage

Keep track of your data usage to avoid unintentional carrier charges:

• iOS: Settings > Cellular/Mobile Data > Reset Statistics at the start of your trip.

• Android: Settings > Network & Internet > Data Usage > Set Data Limit.

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Following these steps, you can use encryptSIM for private, unrestricted global data without worrying about hidden carrier fees or surprise roaming charges.

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