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Invalid sim message

lilyyyy3
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hi! i've just gotten a payg sim from o2, with a tariff on it & all works completely fine when using with my iPhone 12. however, the plan was to use this sim with my Nokia 6700, which works fine with other sims but apparently not this one. upon turning the phone on, i'm met with a "Sim card Invalid" message, which i cant bypass. ive tried other sim cards which seem to be working. does anyone have any advice?

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MI5
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@lilyyyy3 

So the phone is probably locked to the network from which that sim is from.

Ask them if they will unlock it for you.

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
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@lilyyyy3 

Is the Nokia locked to a different network?

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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lilyyyy3
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hiya! the other sim ive tried with the nokia is my paym sim from a different provider, and it works for calls & texts only (as those providers no longer carry 2g&3g as the nokia requires). but that sim does register in the nokia, even with the lack of packet data

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MI5
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@lilyyyy3 

So the phone is probably locked to the network from which that sim is from.

Ask them if they will unlock it for you.

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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lilyyyy3
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ive done some looking & yes it's locked to that network, ive asked & fingers crossed itll be unlocked. thanks so much for your help!

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MI5
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You're welcome @lilyyyy3 

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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lilyyyy3
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Sorry to bother again, but turns out the handset isn't locked to any provider! is there anything else i could do?

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MI5
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Hi @lilyyyy3 

Well that does seem strange.

So please confirm which other network sim works first.

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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lilyyyy3
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Three sims seem to work fine... nothing else though

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MI5
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So it would appear to be locked to Three @lilyyyy3 

Three Unlocking Policy

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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