Martin Lewis has addressed concerns over O2's imminent shutdown of its 3G network, which has been in operation for two decades. During his ITV programme, the money-saving expert responded to a viewer whose elderly mother uses a basic mobile phone and had been told she needed a new 4G device.
O2 confirmed it will switch off its 3G network this year, describing the technology as a 'relic of a bygone era' as it focuses on 4G and 5G. The shutdown will affect users with older handsets that rely solely on 3G connectivity. Up to 4.3 million people could lose internet access, according to Uswitch.com, with O2 being the final major UK network to withdraw 3G services. Customers of O2, Tesco Mobile, Sky Mobile, Virgin, and GiffGaff may be impacted.
Martin explained that in most cases, calls and texts will still work via the 2G network, though call quality may be worse. However, Three customers will not have this fallback as Three lacks a 2G network. He suggested that vulnerable customers may be offered upgrades by some companies, and recommended basic 4G-enabled 'dumb phones' like Nokia for those who only need calls and texts and are concerned about scams.
O2's chief technology officer Jeanie York stated that significant investment in faster, more reliable networks has made 3G obsolete. The network has already been withdrawn in many areas, with full shutdown expected by early 2026. Those still using 3G-only handsets are urged to upgrade as soon as possible to avoid losing services.
