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Device upgrade

Ervins
Level 1: Joiner
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I have upgraded from my old device to a new one. As its a 5G device I've got a new sim card with it. I would like to know how to activate this sim and also keep the existing number.
Thanks
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MI5
Level 94: Supreme
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@Ervins 

Follow this guide Guide: Sim Swap: a mini guide 2017 update 

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.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
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Marjo
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Hi @Ervins welcome to our forum!

Let us know if you're all sorted now with your SIM with the guide linked above or if you need any further advice? 

Happy Christmas! :santa:

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