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Is my SIM dead?

WilliamGrimsley

Super Pro Member
Hi all,
Recently moved from O2 to 3.
I had service with 3 this morning but now I just have a "No SIM Installed" message on my iPhone 12 mini. Today is the day that my number gets ported from O2 to 3, but I thought this seemed a bit strange, surely the SIM should still be detected? I've ordered a replacement SIM, but I'm just wondering if anyone else has had this problem before?
Cheers,
Will
 
It may be offline for a while during the porting process, I would turn your phone off for a while, maybe a few hours and try it again later.
 
Thanks, pollax. I've had no service for about 5 hours, so far.
 
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Try reconnecting to the service and then selecting the three APN. For a phone this should be three.co.uk
 
Typically, it should only take a few hours but it can take days sometimes! Maybe try and get through to customer service if you can get hold of them!
 
Thank you, both.
@eccles, which part of the iPhone's settings is this found?
It looks like the SIM has some damage, probably due to me removing it and reinserting it several times whilst doing testing, so I'll wait for the replacement SIM to arrive unless something changes.
 
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Thank you, both.
@eccles, which part of the iPhone's settings is this found?
It looks like the SIM has some damage, probably due to me removing it and reinserting it several times whilst doing testing, so I'll wait for the replacement SIM to arrive unless something changes.
It's in the network menu. On my Android phone there's an option to select automatic network selection. Disabling that allows you to manually select the network and APN.
 
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