Brits may soon be left with phones that don't work and be forced into buying a new one due to a major change to technology ...

Although wireless standards like 3G ... phone and the intermediate network providers must all support the protocol. Even some newer phones like the Samsung Galaxy J3 (2016) do not support this.

Vodafone says it is working to ... on their their phone to access digital services. It said switching off 3G would have "detrimental effects". "Older and basic devices do not have 4G capabilities ...