Loss of Cell Connectivity After IOS 16.3 Update- iPhone 13 Pro Max

It was sitting on my nightstand the night it updated the next morning. My phone wasn’t work and it hasn’t worked since Apple tells me it’s something to do with the hardware inside the phone, but AT&T says it’s not the phone that they tested it and it has proper connections to everything, Apple told me there’s nothing they can do for it so I got a $600 paper weight.

I update mine on iPhone 13mini and I just couldn’t connect to mobile network date anymore it won’t browse the internet.

Your phone disconnects from Wi-Fi 30 seconds after the screen is locked.

It takes a moment to connect back to Wi-Fi when it wakes up.

I’m desperate with this.

I have cell connectivity with my watch but no with the iphone 13.

Exact same phone model? Exact same location?

Most are seeing no such issues with iOS 16.3.

Which is strange as generating a new eSIM should have the same effect as replacing the phone.

Regardless, I hope the issue remains resolved for you.

It's likely an issue with your cellular provider given they got it working in the first place.

It didn’t.

Yeah, you said that. But what you’re not saying is what needs to be done to solve the issue. You repeating the same thing is not helpful without further information.

The form at the link in 1. above doesn't even provide iOS 16.3.1 as an option under 'which version of iOS are you using'. Submitted the feedback, however.

Same issue here with iphone 14Max pro ios 16.3.1 Need to restart more than 4 times a day to get cellular signal. I have reset network setting but still same issue.

What happen when you take it to apple