Is O2 Down? Live status & outage reports

Service info and troubleshooting

Mobile data connection drops frequently

First, toggle airplane mode on and off — this forces your phone to reconnect to the nearest tower. If that doesn't help, manually select O2 as your network operator instead of leaving it on automatic selection. Go to Settings > Mobile Network > Network Operators and pick O2 from the list. Also check your APN settings: they should be set to "mobile.o2.co.uk" for UK users. Delete any duplicate APN profiles as they cause conflicts. If you're indoors, poor signal is often due to building materials blocking the signal — try moving closer to a window.

My O2 app won't load or keeps crashing

Clear the app cache first: go to your phone settings, find the My O2 app, and select Clear Cache (not Clear Data, which logs you out). If it still crashes, uninstall and reinstall the app completely. Make sure you're running the latest version from your app store. Sometimes the issue is your phone's operating system — if you're on an older iOS or Android version, the app may not support it anymore. Check the app store listing for minimum requirements.

Cannot log into online account

Double-check you're using your mobile number, not your email, as the username. The password is case-sensitive, so verify caps lock is off. If you've forgotten your password, use the "Forgot password" link rather than guessing — three failed attempts will lock your account for security reasons. Clear your browser cookies and cache, or try a different browser entirely. Private or incognito mode sometimes bypasses cookie-related login issues.

Top-up payment keeps failing

Payment failures usually happen because your bank flags the transaction as suspicious. Call your bank to authorize payments to O2. Also verify your card details are entered exactly as they appear on your card, including spaces in the card number. Try a different payment method — PayPal or a different card. If you're using a VoIP or international number for verification codes, switch to your actual O2 number to receive the SMS confirmation.

Text messages won't send

Check your message center number is correct: dial the phone app, enter *#5005*7672# and press call. You should see +447802000332 for O2 UK. If it's different or empty, go to Messages settings > Advanced > Message centre and enter the correct number manually. Also verify you haven't accidentally blocked the recipient or enabled a spam filter that's interfering with outgoing texts.