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Newly acquired iPhone 15 iOS 26.0.1, SIM from iPhone 13 not working 'No Service'

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dholburn
Visitor

‎09-10-2025 03:27 AM

As per title.

I have a newly acquired iPhone 15.  During Data transfer it advised me to upgrade to iOS 26.0.1.  This was successfully done on WiFi and the data transfer from my previous phone went smoothly.

When I took the SIM from my working iPhone 13 and inserted it to the 15, contacts facing up, I get No Service, no bars, cannot make calls, send SMS, and no cellular data.  When I replace the SIM in the iPhone 13, I get 5 bars of 5G and everything works as it has always done in that phone (that one is still on iOS 18.7.1 and I do not plan to upgrade to 26 until I hear far more encouraging news.   

I have tried flight mode, force restart and network reset on the iPhone 15.  None of these made any difference.  I suspect this is an iOS bug (I read that this was recognised with iOS 26.0, and 26.0.1 was supposed to fix this.  Or (less likely) a phone hardware fault.  

Has anyone experienced similar and found a fix?

Many thanks for any suggestions,

 

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1 SOLUTION

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Michael_D
EE Community Support Team

‎09-10-2025 09:13 AM

Hi @dholburn 

Welcome to the community.

Have you bought the phone as brand new or was it a second hand phone?

My thinking is that it is the phone could be blocklisted, especially if it is a second hand one, as the symptoms you've described could also be seen if that was the case.

It is worth trying to go to Settings > General > About and make sure that the Network Provider shows as EE 65.0.2. If it doesn't, wait on that screen for a couple of minutes to see if an update to the carrier settings appears to install.

I'd also recommend trying to do a manual network search by going to Settings > Mobile Service > Network Selection.

If that still doesn't help, please contact our tech guides, who can run some other checks with you to see if they can get it working.

Michael

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Michael_D
EE Community Support Team

‎09-10-2025 09:13 AM

Hi @dholburn 

Welcome to the community.

Have you bought the phone as brand new or was it a second hand phone?

My thinking is that it is the phone could be blocklisted, especially if it is a second hand one, as the symptoms you've described could also be seen if that was the case.

It is worth trying to go to Settings > General > About and make sure that the Network Provider shows as EE 65.0.2. If it doesn't, wait on that screen for a couple of minutes to see if an update to the carrier settings appears to install.

I'd also recommend trying to do a manual network search by going to Settings > Mobile Service > Network Selection.

If that still doesn't help, please contact our tech guides, who can run some other checks with you to see if they can get it working.

Michael