I made the mistake of installing the 17.2.1 update, which is full of serious bugs. I have an iPhone 12 with T-Mobile cell service. The phone would not connect to the cell network, just cranked and cranked and gave an error message, so no calls or data. Tried shutting down and restarting several times - no luck.
When I called Apple they tried for a hour, but could not fix it. They said they’d have to wipe my phone and reinstall everything, but could give no assurance this would solve anything.
They then suggested I call T-Mobile to see if they could help - very frustrating when Apple caused the issue. T- Mobil, on the other hand, was very helpful, but had to walk me through loading a new eSIM card, and basically resetting up the data on the phone to connect. It worked for a few hours, but now won’t connect until I reset network settings, which I’ve had to do several times. And the phone also no longer remembers WiFi passwords for the network we are on.
Very frustrating that an Apple update has not been tested enough, and therefore causes such serious issues. If you want to be able to use your phone during the holidays, stay away from this awful update!
