Examples of mobile phones that will no longer work from 28 October 2024 (previously 31 August 2024) include:Apple iPhone 4, iPhone 4S, iPhone 5, iPhone 5c, iPhone 5s.Samsung Galaxy S5, Galaxy Core Prime, Galaxy J5 Prime, Galaxy J1 mini.Oppo A5, A7x, A9, A11, A31, A71, AX5, F1s, F3, R11, Reno2 Z, Reno3, Reno 4,Find X2.