Yes, for any travel eSIM, including those for use in London, your mobile phone must be unlocked by your home carrier. An unlocked device is essential as it allows you to install and activate an eSIM profile from a different provider like TraveloeSIM. This ensures you can access reliable 4G or 5G data services across the UK's robust network infrastructure without any restrictions.
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Must my phone be unlocked to use a TraveloeSIM in London?
Updated May 30, 2026
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