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O2 can’t unlock my phone

Thomas0
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Hi, I had got given an old I phone x and the o2 sim wasn’t deactivated off of the phone, we cannot find that sim to unlock it. I don’t know what to do??
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MI5
Level 94: Supreme
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@Thomas0 

Guide here Guide: Unlocking an O2 phone to use a different SIM card 

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
  • 127421 Posts
  • 614 Topics
  • 22123 Solutions
Registered:

@Thomas0 

Guide here Guide: Unlocking an O2 phone to use a different SIM card 

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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