Get tech support for your O2 issues

network issues

Hi,I have been experiencing issues with the o2 network over the past month. My phone display shows 3 to 5 bars of signal however when I make / receive a call at home I can have a conversation for a few seconds, then the other person cannot hear me, t...

Setting up WiFi calling and 4G with O2 Firmware

Hello,I have just purchased a pre-owned Sony Xperia XZ1 Compact.My home location has very poor signal coverage so I want to try using WiFi calling when the mobile signal drops out.My phone doesn't seem to support it at the moment and I believe this i...

Very poor signal for calls and cannot load anything online

Why is it the quality of signal has gone so poor? I cant make a phone call any long without issue nor can i load anything on the internet yet my phone shows i have multiple bars of signal and 4g!?

Number change

Hi I have at last got my old number on my new phone but the temporary SIM card number is still showing as my number and I have gone into settings and amended it but it won’t save it ?

3G/4G down after data upgrade

Recently upgraded my phone/tariff, while I am currently awaiting the new phone to arrive, I have got notifications to say my new data tariff have started since then my 3G/4G has refused to work for the last 3 days. The 3G logo is still showing but it...

Unable to receive WhatsApp verification SMS

I have an O2 e-sim and am unable to receive WhatsApp verification codes via SMS. I recently travelled abroad and switched WhatsApp to use a local number. Now I'm back in the UK and am trying to switch WhatsApp back to my O2 number. However I never re...

Resolved! Apple Watch mobile data not working

Hello I have purchase a Apple Watch 7 from Apple store and then purchased airtime with O2 last week. Till now I have no mobile data on the watch. Say to call O2 on 202 and quote reference code 14. Rang O2 twice now and they have no idea what this mea...

Mobile Network Speeds Unacceptable/Appalling - What to do?

Hello all. I am at the end of my tether with this one. I switched from Three to O2 relatively recently (some of you were kind enough to suggest solutions to a number porting issue I was having at the time, thank you). I would have stayed with Three b...

Resolved! New iPhone 13, no service?

I have recently bought the new iPhone 13 (like two days ago recent). The phone is all set up, new sim inserted, same number, same everything. But for some reason I have no service? Like none, anywhere. So I’m only able to use the phone online when co...

O2 messing me around

I bought a iwatch in august and couldn’t connect it to o2. I have been on a saga since. Here is a summary of what they have got me to do:I was on o2 business (paid by my workplace) and they said o2 business is not compatible with watch. They moved me...

O2

Forum Posts