Since updating iPhone 15 Pro Max to iOS 26.3.1, there’s a problem with my SIM (physical). Can’t make calls or receive calls, or send texts. Got a pop-up saying SIM unavailable, so I took it out and reseated. Still same issue. How can I fix this?
iPhone 15 Pro Max, iOS 26
I have also faced the same issue, the physical sim was not detected but was working in other phone. I visited the apple service centre and they suggested to purchase a new sim with same number, that worked for me and now I’m able to use the new sim
I faced this very issue with my iPhone 15 Pro Max. To resolve it, I had to perform a clean installation of the iOS 26.3.1 firmware in DFU mode. This method successfully fixed the problem, and it’s the only effective solution I’ve found.
The problem was that my iPhone couldn’t identify the SIM card and kept searching for a signal.
Same issue here, the model of my phone is iPhone 11 Pro, after installing the 26.3.1 (a), my cellular network is not working, no call, no sms and, etc. Please help me, I need to fix it asap, very important to me. Attention APPLE please fix this issue.
Same thing, after updatin to 26.3.1 my phisical SIM is no longer available. Thought the problem was in the SIM-card itself. Replaced it and tried on the other phone - the SIMcard is okay.
I do the same but nothing happen.
Faced same issue, couldn't receive / send any call or texts after updating recently. For me going in the General -> Transfer or Reset IPhone -> Reset -> Reset Network Settings fixed it for me.
Service issues after updating to iOS 26.3.1
