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

Is anyone experiencing frequent loss of cell connectivity after updating to IOS 16.3?

iPhone 13 Pro Max, iOS 16

Posted on Jan 25, 2023 9:55 PM

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Posted on Jan 31, 2023 8:52 PM

Loss of Cell Connectivity After IOS 16.3 … - Apple Community

Yes!

Tried resetting network settings: worked for a few hours then problem returned

Tried resetting phone with erase all contents and settings, but problem returned

Called apple and they said to try full restore, plugged into Itunes. Waiting to see if it holds. 

Seems Verizon needed to release a carrier update but didn't, and the new IOS can't negotiate with their network very well. apple blames verizon, verizon blames apple. BTW I pulled the sim and put it into another phone with IOS 16.2, and it worked perfectly, so its NOT the sim, or the verizon account that is the issue. It is a fight between the new IOS 16.3 and the cell phone networks.

57 replies

Feb 3, 2023 7:08 PM in response to GPTitan

I have some more details about the problem.

Usually I work from home, the number of times I get disconnected during usual day is nothing compared with when I go out and do some small commute to the office.

When I restart the mobile (iphone 13) I get signal for some minutes (it depends, some times less than a minute and some times more) but suddenly then the signal turns off.


Inside settints - mobile data - network selection I have it on automatic, if I switch off this selection the mobile is unable to find anything. This does not happen with an iphone 11 pro.

Feb 12, 2023 5:00 PM in response to mak5587

That's because there are a wide variety of issues that are carrier-specific that could be at fault, from tower issues to SIM or eSIM issues to database issues.


For example, not too long ago I stopped receiving calls. I tried calling my own phone and got sent straight to voice mail.


I had to contact my carrier and they did a "reset" of parameters in their database, and it fixed the issue.


I hope replacing the phone solves your issue, the question is whether Verizon will take responsibility if it doesn't.

Mar 13, 2023 11:39 PM in response to GPTitan

I am from Bulgaria. iPhone 13 with SIM and eSim. After update to 16.3.1 I have issues with cellular connectivity. I have reset tried all recommended fixes (reset network settings, fly mode even resetting the phone but keeping the eSim) without success. Connectivity issues are with both the lines. Then I have removed the sim to another iPhone SE 2020 with IOS 16.3.1 and there are no any problems- it is 4G and is working without any problems. With iPhone 13 with IOS 16.3.1 I still have problems. So I believe there is no problem with the carrier. Any other suggestions?

Feb 11, 2023 9:48 PM in response to GPTitan

Yes I am having the same issue after installing 16.3…My phone cellular service has taken a hit! I cannot use the internet, social media apps, send text messages, listen to podcast or music. It’s so annoying, I have an XR but the model has nothing to do with it. I’ve turned off my phone a dozen times and have done a network reset several times. I need to reinstall the old software again


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

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