5g not working since iOS 16.4 upgrade

Have you installed the latest carrier settigns update?

1. Make sure that your device is connected to Wi-Fi or a cellular network.
2. Tap Settings > General > About.
3. Follow the onscreen instructions to install your carrier update.

It was not working on my iphone 14 pro too after updating to 16.4.1, i have tried to reset the network also contacted with my carrier provider & restarted the phone, nothing worked then i unable the low power mode on my phone & 5g is started showing on status bar. So you can also try doing that if it helps you. 😊

Had the same issue on an iphone 13 mini and it was definitely something that happened as a result of switching to 16.4.1 (a). Connection was stuck to 4G on both sim cards I use in spite of all the right settings being selected and in spite of numerous network resets, device restarts etc.

Fixed it by updating the OS to version 16.5. It works now.

Good luck!

Check to see whether you require a carrier settings update:

Manually update your carrier settings on your iPhone or iPad - Apple Support

Otherwise, contact your cellular carrier for assistance.

I really don't see the point of you constantly defending the iPhone and blaming everything on the carrier. Just searching through the internet it becomes obvious that people encounter this problem, irrespective of the service provider, iPhone model, iOS version, location etc., and it's not just a one time thing for one person. If you can't admit that iPhone's software may be the problem, I'd recommend you to stay away from this discussion.

I personally did a hard restore of iOS on my iPhone and lo and behold - 5G icon is back. Obviously, not a lot of people would actually want to go through the whole process of backing up their iPhone, downloading the software, restoring the phone to factory settings, and then restoring their backup just to get 5G instead of LTE. But this just proves that there is an issue in iPhone software, that glitches and makes 5G unavailable.

Here is my experience.

It is not a carrier issue... it is an iPhone issue.

Yes, i can make this assumption.

I bought a new iPhone 13 standard on may. Since then i never had good celullar signal. It was the first time in years a saw "3g" signal. With my later android i was always LTE or 5g.

Last week I took it tho the tech. support.

At the store, I had absolutely no signal at all. The technicians ran all the tests and couldn't find any issue... NONE.

At that point, I asked if there was another iPhone they could use to test the SIM card. They found another iPhone, put my SIM card in it, and voilà, LTE signal appeared instantly.

They returned the SIM card to my iPhone, and once again, there was no signal.

It became clear that my iPhone had a problem, even though Apple's diagnosis said otherwise.

The technician managed to identify an "issue" with the side button, so he could justify warranty to replace the entire back part of the iPhone.

When I got the iPhone back, three days later, with the new back part, the signal was working without any problem.

I asked the technician, and he told me that he was able to identify (his words) "issues with the cellular network sensor."

Therefore, no, this is not a carrier problem. It was a hardware problem that apple's test kit wasn't even able to find.

Just fixed mine, turned on airplane mode, restarted it phone, turned airplane mode off, back to normal

disable low data mode then try 5g

Disable low data mode

Had the same problem with iPhone 13 Pro Max. 5G is back again after update to iOS 16.5. Unfortunately there is no info in release notes about this issue.

[Edited by Moderator] 

I just updated to iOS 16.6 and 5G is back! ☺️

So, it wasn’t carrier’s problem in the end… 😉

Thank you

iOS 16 allows you to shut off 5G under "Cellular Data Options," but that is all.

If you cannot connect to 5G networks it is a configuration issue with your account in your cellular provider's system or a tower issue.

If it's on multiple towers we are back to an account issue.

If you have a physical SIM, make sure it is one that supports 5G service, not all do.

Simply put, if it were iOS, it would be broken for everyone.

Apple just released iOS 16.6; have you tried it?

5G stopped working for me as well. I only get LTE connectivity. Tried rebooting device, airplane mode, resetting network settings, no results. And I know it’s not a carrier issue, because I swapped my SIM card with another iPhone and 5G worked on the other device. And I haven’t even updated my iOS recently, it just stopped working.

First, make sure your device is fully updated, the most recent version of iOS at present is 16.5.1:

About the security content of iOS 16.5.1 and iPadOS 16.5.1 - Apple Support

Second, if you believe it's your device, contact Apple Support directly:

Contact - Official Apple Support

Most iPhone 14 owners are seeing more 5G signals than ever.

I don't know which carriers you have, but often many carriers share the same network so multiple carriers may in fact be the same from a signal point of view.