Mobile phone owners with devices more than 10 years old may need to get a new one as 2G and 3G networks are phased out, a tech expert has said.
The switch off of the 3G network is almost complete after mobile phone operators were given a 2033 deadline by the government, with O2 to switch off its 3G network gradually in the coming weeks.
David McClelland said some older phones, along with burglar and care alarms, will not be able to receive 4G and 5G networks, while others may automatically switch over.
A spokesperson for O2 said it had written directly to its customers to inform them and had advised those with incompatible phones on upgrades “at a discounted price”.