Night mode is an automatic setting which takes advantage of the new wide-angle camera that's in the iPhone 11 and 11 Pro models. It's equipped with a larger sensor that is able to let in more light, allowing for brighter photos when the light is low.
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O2 Apologizes for Wireless Network Performance Issues in London
Mr Dunne said O2's network difficulties had been caused by an "explosion" of demand for data services on smartphones but insisted the problems were largely confined to London.
Some O2 customers have periodically been unable to make or receive phone calls, or download material to their handsets, because the network was clogged up by smartphones.
Just last week, O2 experienced a significant outage of its data network lasting nearly 48 hours and affecting a significant proportion of its customers.