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O2

Having problems logging into My O2 iPhone app?


Some of you have told us that you have had problems logging into My O2 app, which we’re sorry about. We’ve discovered most problems seem to be occurring because some people have more than one account on o2.co.uk – one we’ve set up when you joined and one you may have set up yourself later on.

If you use the iPhone My O2 app, please note that you will have to set your mobile account as the default. If you don’t do this, you won’t be able to use it.

If this has happened to you, you’ll need to use the original account we created when you joined O2.


  • If you joined O2 through our website, you’ll have chosen your own username and password. We’ll then have sent you an email with your username and a text with your password as a reminder.

  • If you joined us by phoning one of our sales teams it’ll be the same as above except our advisor will have created the account and then emailed you the details.

  • If you joined O2 when you were in an O2 or Apple store, your username will have been on your contract. We’ll then have sent a follow-up us