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Invalid sim message

Justinelewis
Level 1: Joiner
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Hi. I keep getting a message saying 'invalid sim' on my iphone 7. If I switch the phone off and on it clears but then the message reappears some time later. Clearly I can't use the phone when the message is there. I'm wanting to upgrade to a new phone but I want to be sure the sim card will work OK in the new phone before I commit. Any help gratefully received. Thanks.

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MI5
Level 94: Supreme
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@Justinelewis 

Pop into your local O2 store with photo ID to get a new sim.
Or you can call 202 from your O2 mobile or 0344 809 0202, 0800 902 0217 or 0800 032 1402
When it comes to the reason you are calling, stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.
Say 'Upgrade', 'Lost/Stolen', or 'Fraud' if the suggestion above doesn't get you through.
Best time to call is 8 am.
You can also reach O2 via social media:
Facebook (https://o2uk.co/O2CFB), Twitter (https://o2uk.co/O2CTW), or Instagram (https://o2uk.co/O2CIG)

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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MI5
Level 94: Supreme
  • 151768 Posts
  • 650 Topics
  • 28843 Solutions
Registered:

@Justinelewis 

Pop into your local O2 store with photo ID to get a new sim.
Or you can call 202 from your O2 mobile or 0344 809 0202, 0800 902 0217 or 0800 032 1402
When it comes to the reason you are calling, stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.
Say 'Upgrade', 'Lost/Stolen', or 'Fraud' if the suggestion above doesn't get you through.
Best time to call is 8 am.
You can also reach O2 via social media:
Facebook (https://o2uk.co/O2CFB), Twitter (https://o2uk.co/O2CTW), or Instagram (https://o2uk.co/O2CIG)

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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jonsie
Level 94: Supreme
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It sound like you need a new sim

Best option is to take photo ID to a O2 store and they will swap it out for you

Or give them a call on 202

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