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Upgrade and sim not going live

Julie13
Level 1: Joiner
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Hi. I upgraded on Saturday. O2 to O2.
I received my new phone on Monday, keeping my existing number, and am receiving calls but can’t make calls or send text messages.
I can still do this on my old phone but some things work and some don’t on my new phone.
Is there a problem with my transfer? I still have “No Service”.
Thanks.
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madasaf1sh
Level 76: Forum Legend
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@Julie13

The best thing to do is to contact Customer Services on 0344 809 0202 and speak to an agent as they will be the best to help with this issue.
- Xperia 1V - o2 and Spusu
- Pixel 8 Pro - o2 and Vodafone UK

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madasaf1sh
Level 76: Forum Legend
  • 9983 Posts
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Registered:
@Julie13

The best thing to do is to contact Customer Services on 0344 809 0202 and speak to an agent as they will be the best to help with this issue.
- Xperia 1V - o2 and Spusu
- Pixel 8 Pro - o2 and Vodafone UK
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MI5
Level 94: Supreme
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@Julie13 

You need to do a sim swap from your old phone to activate the sim in your new phone Guide: Sim Swap: a mini guide 2017 update 

or just put your old sim in the new phone.

The only benefit of the new sim is 5g if you are in a 5g area.

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
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