Hi, like I said in the OP, I have tried restoring and setting up as new phone, and it does connect to LTE that way. However, as I mentioned, I am not willing to continue with the phone that way because I don’t feel that I should have to lose most of the data on my phone to resolve a known (although admittedly probably rare) issue that should have a better solution than having to erase the whole phone except for photos/contacts.