Get tech support for your O2 issues

Resolved! Do I need to change my phone before 3g is turned off?

I keep getting messages from O2 telling me my somewhat old phone won't work on 4g and I need to upgrade when 3g is switched off. I am puzzled as I originally bought the phone because it was 4g compatible and my phone status screen says I am already u...

OTP being received over RCS

Some of my OTP are now being sent as RCS files. Instead of appearing as a usual text they are showing up as a download icon. I need to click on the download icon, whilst my data is on for it to start the download. They are called "Attachments" on my ...

Imei blacklisted brand new phone

Hi everyone, I am very frustrated as I upgraded my iphone 11 to a new version Iphone 16 promax from o2 and was unable to connect to the network for the last few days. Eventually after speaking to a member of staff at O2 we found out that imei is blac...

How to find help & contact O2: A Guide

Oh boy, I have been harrassed to get a sim for the other 4g phone. O2 have sent plenty of texts. The thing is I am not wishing to have an internet/data phone as I drive. Just a phone with texts will do. So went into the O2 shop and nearly ended up wi...

hash key not recognised for authorisation

Hi. Have tried to sign into my NS&I account but unable to because I need to use the # key to enable authorisation & it isn’t being recognised. Advisors at NS&I have informed me this is a common problem on iPhones & the cause is the “DTMS files”? on t...

Resolved! Clock on phone and watch wrong, how do I reset?

Google Pixel 7 phone and Samsung Galaxy Watch 6, clocks on both are about 10 minutes fast according to most other clocks, and I don't know how to reset them?

How long is it going to take to transfer my number

Since the 1st of April I've been waiting for you to transfer my number

Resolved! Data in Jersey

I am trying to use my data in Jersey and my phone has no signal. It has been like this for the past week and I am not sure what to do

Re migrating number from Business o2 to Consumer o2 not happened after 5 days

Hi can anyone help. Our Business contract ended on 7th April. 3 of the phone numbers where to migrate onto our consumer sims. Requested on the 7th. It's now the 11th and the numbers haven't migrated and the Business contract can't end until it does. ...

Can’t activate esim

Hi. I cannot see an option in settings to activate eSIM, therefore the QR code isn’t working when I scan it. Tariff changed yesterday.

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