The report comes with a growing number of people finding that their iPhones reported “No Service” after updating to iOS 14.7.1. The issue seems to be happening to older iPhones like iPhone 6S as well as newer ones, and normal fixes like restarting the iPhones, resetting settings, and removing SIM cards don’t seem to be fixing things so far.
Apple does have a support page up and running already, with a number of suggestions offered. Those include:
To turn cellular data on or off
Restart your device
Check for a carrier settings update
Take out the SIM card
Reset your network settings
Update iPhone or iPad
Contact the carrier
That final option appears to be in the hope that the SIM card itself is faulty, although that now seems unlikely given the issue is so widespread.
We recently saw reports that Apple is already testing iOS 14.8 internally, so it’s possible that will offer some respite for afflicted users. If not, iOS 15 is now expected to arrive within a matter of weeks — maybe that will get people back up and running!