Get tech support for your O2 issues

Connection problem from landline

When I call my O2 mobile (REMOVED) from my home phone (Talktalk REMOVED) I always get a message from O2 saying that it is impossible to connect even though the mobile is working correctly otherwise. I cannot understand this and cannot correct the pro...

esim not working

I want to talk to a human being. My esim shows as active, but I can't receive or make calls. I urgently need to use my phone

new esim now no ringer but vibrate works?

S22 mobile, I just changed from a physical sim to an esim. Everything works except the ring tone, the phone only vibrates now.

no signal again

received brand new iphone

just received my new iphone 14 pro max charged it all up and tried to start using it but asking me for my screen passcode number but i haven’t made one for the phone yet so i cannot get on any further with setting my new phone up can you help ( advic...

Can't send SMS to non-added contacts but can once added

Hi, As per the title - if I try and send an SMS to a number not on my contact list, the SMS will say "error - could not send." However, if I add the number to my contact list, the message then goes through. Any idea how I can fix this? Handset is a S...

Resolved! No service

I have no service on on of my two O2 contracted phones. The line ending 9873 has no service. I have also tried to contact O2 cust services but does not work. Please advise.

Answering 'Security Question' when trying to make phone contact

My local mast has been down for over ten days now (ever since O2 said it would be having some upgrade!)As a result I've had cause to seek some help. But I have a problem logging in by phone (landline), when I get asked 'What is the answer to your sec...