Affirmative. To deploy any international eSIM, including your eSIM Scout plan for London, your mobile device must be unlocked by your home carrier. An unlocked device is critical for installing and activating an eSIM profile from a third-party provider, ensuring access to 4G or 5G data across the UK's primary networks. Verify your device's status before departure.
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Must my device be unlocked to deploy an eSIM Scout plan in London?
Updated May 30, 2026
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