O2

What should I do if I’m having signal issues?

Use the O2 network status checker to see if there’s a known network connection problem in your area, or to report an unknown issue to us. From here, you’ll be able to subscribe to updates using Keep Me Posted.  If there’s no known issue, try manually resetting your device by:  Turning your phone off and on  Making sure mobile data is turned on in your settings Choosing the O2 network manually in your settings Resetting your network settings (this will also reset Wi-Fi networks and passwords, cellular settings, VPN and APN settings that you’ve used before)  Instructions

How do I get a network connection when I don't have any signal?

When you have no signal, you can use Wifi to call and message instead. If it's available with your device, you can use our Wifi Calling service  to make calls, receive calls and send and receive text messages when you have no signal. We also have over 16,000 Wifi hotspots available to connect to for free, which offer speeds up to 10 times faster than a normal mobile connection.

5G explained

The power of 5G on personal and business devices will give everyone a better and more reliable connection in extra busy places, delay-free downloads and buffer-free streaming. But it’s 5G’s impact on the world around us that’s even more exciting. This new technology has the power to connect buildings, transport and services in ways we’ve never seen, completely revolutionising everything from the way traffic flows on our roads, to the way we receive health care. We now have 5G in parts of most major UK towns and cities, as well as lots of smaller towns and villages.  Find out more about O2

2G, 3G, 4G and other jargon

2G   Second generation mobile network known as GSM. Simply put, 2G allows you to send text messages. 3G   The third generation of mobile phone technology, offering better coverage for voice calls and text messaging, as well as providing faster access to the internet.  3.5G   Also known as HSDPA (High Speed Data Packet Access), 3.5G provides faster data rates than 3G. 4G   The fourth generation of mobile phone technology. With 4G, using the internet on your phone is even quicker, with speeds 5-7 times faster than 3G. If you have a 4G ready phone, but you’re not in a 4G