O2 is the last network that still operates a 3G network, with the other UK mobile operators already having decommissioned their 3G service so they can re-deploy the spectrum to be used for 4G and 5G ...

Anyone with an older phone that’s currently connected to the O2 network needs to upgrade immediately. The popular UK provider has just issued a final warning, and ignoring it could leave some without ...

If your oxygen saturation level drops below 92%, seek medical help right away. A dangerously low oxygen level can make you feel short of breath or confused, or cause chest pain. Low oxygen can lead to ...