When will O2 4G be back online? Network finally provides update on when internet will work again

O2's 3G mobile data network should have returned to full functionality on Thursday night following an all-day outage, the company has said. But continuing problems with faster 4G connections apparently remained into Friday morning. O2 and its parent company Telefonica had said they were "aiming" to have the problems fixed by Friday morning, but O2 later updated the timescale. It said 3G service should have resumed at 9.30pm UK time, adding that "our technical teams will continue working hard with Ericsson engineers to restore 4G which will bring us back to full network service". Shortly after midnight on Friday morning a spokeswoman added: "Our technical teams have started to return our 4G service to our network. We anticipate this will be restored by 3am this morning meaning all our services will be fully restored. "We'll continue to monitor the service and share any further updates on our website.