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Hi just got a new phone witch sim do i use old or new

Dan26
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hi

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MI5
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@Dan26 

You can use your old sim but if you want and can use 5g, you'll need to use the new sim.

You'll need to do a sim swap to activate it 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.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)

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MI5
Level 94: Supreme
  • 127410 Posts
  • 614 Topics
  • 22123 Solutions
Registered:

@Dan26 

You can use your old sim but if you want and can use 5g, you'll need to use the new sim.

You'll need to do a sim swap to activate it 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.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
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