I found a bug in iOS 14.4.2 ... Phone app stopped working on iPhone 7 device

Hi,

I found a bug in iOS 14.4.2 ... Where the "built in" Phone app doesn't work any more ... and the same with Messenger and Zoom ... they stopped working on iPhone 7 devices.

Having done a quick web search, I found that many other users too have experienced this issue with their older phone models, after updating to iOS 14.

I personals own and daily use an iPhone 7 model ... and last working version I had running was iOS 14.4.1 (that is, just one revision earlier ...)

Some days in early April, I updated it to 14.4.2 ... didn't quite notice that the "Phone app" didn't work the first few days .. since I use AirPods ... and bluetooth audio isn't affected.

But one day my girlfriend called me when I was at the store, and I couldn't hear her / and she couldn't hear me. Didn't make to much into it, as I shrugged it off as "It must be the cell towers close by, that are the issue / cell coverage is bad right now" ...

But then, a week ago, or so, I wanted to record a video with the Camera app (Apple's built in) ... and then I noticed that it didn't record any audio in the movie..... but it did'd record video.

So I began looking into it ... that's when I saw this Apple discussion thread:
https://discussions.apple.com/thread/251843861

TL:DR ... I whipped up a voice memo app (SwiftUI) ... and did an extensive testing and bug searching during this weekend.

And I am 99,999% certain, I found a bug in the latest hot-patch (14.4.2) Apple released ... for the ZeroDay-exploit ... the security team at Google found.

I understand, you don't really have time to do a thorough QA-check when you don't get a heads up, and have "zero days" to work against to find a fix and push it out ...

I'm guessing, they (you apple) did as a good of testing that you could, but older iPhone7 maybe fell below your Rader ... I'd venture a go that you might have thought/had time to test down to iPhone8:ish? :-) ...

Anyhow, how do you get a hold of Apple iOS Developer team to give them the feedback and the logs and so ... so they can fix this bug that the Hot-Patch (14.4.2) is causing older iPhone7 Devices?

... having spend the weekend trying to talk to the "Customer Apple Support" folk on the Phone and in the store ... didn't go far ... as they are so darn stubborn to just rule it as a Hardware issue ... since iPhone 7 "is such an old device, it must be that it's old and broken" .... speech ...

I have to turn else where ... but where? is my question?

Cheers,
Daniel.

It's weird my iPhone seventh just bought 5 months ago. Now I got the issue with Wifi (button greyed out/disabled) when upgraded to 14.4.2. I've to use Cellular instead. Also Bluetooth also does not work.
I found a bug in iOS 14.4.2 ... Phone app stopped working on iPhone 7 device
 
 
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