SIM & PUK failure
I am stuck in a circular (Edited per community guidelines).
After upgrading to iOS 16.0.1 my iPhone X would not accept the PIN to unlock my SIM card.
I got [Create PIN for SIM Card]...choose a new PIN code
Next screen said [Enter PUK for SIM card] ...your SIM card cannot be accessed. Please call your carrier to obtain your PUK code and 10 attempts remaining.
This led to [Create PIN for SIM card]...choose a new PIN code.
Which brought me back to [Enter PUK for SIM card]...10 attempts remainig.
I could find no solution on the AT&T site and no number to call.