O2 on Twitter: "@mikelucas1 Okay, please go into Settings, Mobile Data, Mobile Data Options then Mobile data Network. What does your APN setting show?" / Twitter
![O2 mobile network down and Nottinghamshire customers have been left without 4G - Nottinghamshire Live O2 mobile network down and Nottinghamshire customers have been left without 4G - Nottinghamshire Live](https://i2-prod.lincolnshirelive.co.uk/incoming/article2297056.ece/ALTERNATES/s615/1_o2-stock-market-flotation.jpg)
O2 mobile network down and Nottinghamshire customers have been left without 4G - Nottinghamshire Live
![O2 su Twitter: "@colinrtalbot Where it says 'https://t.co/UinmbQJnR4', can you change it to 'https://t.co/S2RARdZVu1'? Let us know if you see an improvement after doing this." / Twitter O2 su Twitter: "@colinrtalbot Where it says 'https://t.co/UinmbQJnR4', can you change it to 'https://t.co/S2RARdZVu1'? Let us know if you see an improvement after doing this." / Twitter](https://pbs.twimg.com/media/DzInIr2X4AAAQDH.jpg)
O2 su Twitter: "@colinrtalbot Where it says 'https://t.co/UinmbQJnR4', can you change it to 'https://t.co/S2RARdZVu1'? Let us know if you see an improvement after doing this." / Twitter
![O2 down: Phone calls not working for some customers amid network problems | The Independent | The Independent O2 down: Phone calls not working for some customers amid network problems | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2019/07/25/11/o2.jpg?width=1200)
O2 down: Phone calls not working for some customers amid network problems | The Independent | The Independent
![O2 on Twitter: "@ICT_with_MrD To try and prevent this from happening again, check out our data saving tips here: https://t.co/jLBWKIliY4 You may be able to change the settings of your phone to O2 on Twitter: "@ICT_with_MrD To try and prevent this from happening again, check out our data saving tips here: https://t.co/jLBWKIliY4 You may be able to change the settings of your phone to](https://pbs.twimg.com/media/Dp0YBKcXUAAAXd_.jpg)