Get tech support for your O2 issues

Locked phone and eSIM for travel

Hi,I currently have a device that is locked into O2 as a carrier.Soon I will be travelling to Japan on a trip and was considering using another carriers eSIM for data whilst I'm there.Am I able to use an eSIM for travel even though my device is locke...

4G Sim to 5G Sim?

Hello everyone, I am looking for some advice please, my current old Samsung Galaxy A51 4G phone has been playing up recently and I am about to get a replacement Samsung Galaxy S20 5G phone. My current old O2 Sim card which I assume is 3 or 4G is also...

Unable to access My o2

My O2 not recognising my email address/date of birth/last four digits of bank acc/New passwords?? Why is this please. O2 customer for at least 20 years and always input a four digit code to access my account before today.

Poor Signal

Hi, We have never had brilliant signal at our house - we can only make phone calls on one side of our house or right at the top of the garden, and even then it is not always reliable. This has never really worried us as we enjoyed the peace.However, ...

sms not sending from iphone7

Recently joined from another provider and cannot send sms messages from an iphone7

Resolved! Message settings for Samsung S21

I can't send text messages on messenger just comes up can't send messages on this network

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No data but calls still working

Hi I have no 4G or internet unless on Wi-Fi but my calls are still working. I have taken all the steps advised but it still isn’t working. Thank you.

Imei barred

I had my ipad stolen while on holiday so reported it to 02 and ordered a new one which arrived the following day, then the same day my phone stopped working saying "sim not activated on network". I phoned 02 who sent a new sim for both my phone and t...

Strange fault

Hello When I receive calls from certain numbers my phone rings but the person calling cannot hear me, and I have to call them back and the call works fine. On investigation the person calling hears no ringing and their phone does not show that the ca...

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