Your instructions did not help I cannot shut off SOS on my iphone 13 with the new 17.3.1 software I am getting very frustrated it blocks any text messages it's blocking any phone calls I have rebooted the phone repeatedly and it keeps going back to SOS
I figured mine out because it was activated through my smartwatch. I finally got it turned off by going to the SOS app on the watch & turning it off that way.
This was not helpful for my case. My phone has been in sos mode for almost 24 hours . I switched my phone from one carrier to my internet provider. My boyfriend had done the same thing with his cell phone four months ago, and did not get put into sos mode.