Level 1

93 points

iPhone 12 losing service

Received my iPhone 12 Pro on Friday. Activated it on Saturday. Sunday I drove for 10 mns and when I arrive to my destination I saw no reception bars and No Service. And in the middle of the screen in a grey box: Your iPhone is not Activated.

The only way to get the connection back was to toggle Airplane mode to ON then OFF.

The iPhone had the cellular mode to 5G Auto. I switched it to LTE to test. And it was the same.

So I resetted the network settings: same issue and I resetted the iPhone as a new iPhone and reinstalled everything from scratch (not from a saved backup): same issue.

I drove my car and found the exact location where the phone lost the network. If the phone lost the network it means I reach the end of the coverage area from a certain antenna. It looks like something happened with the phone when I reach a zone covered by a new antenna.

I called my operator and they told me that everything is good on their end and I have the right SIM card for a 5G device.

I called the Apple Tech Support and they remotely installed on my phone two profiles:

Baseband and Telephony Logging
CFNetwork Diagnostics

I was able to replicate the issue after talking to the Apple Tech and I was able to submit the report.

I pushed a little bit the research and I found on Reddit a lot of people talking about the same issue not only on Verizon (my carrier) but also on AT&T. Just use the title I typed and you will find the article.

I never had such issue with the 11pro.

[Re-Titled by Moderator]

Posted on Oct 28, 2020 11:31 AM

Top-ranking reply

DenKatkov

Level 1

4 points

Posted on Dec 21, 2020 3:50 PM

My iPhone 12 Pro Max on Verizon (Orlando, Florida) had connectivity issues, dropped and failed calls. Spoke with Verizon support earlier today and they were able to help me resolve the issue:

Settings
Cellular
Cellular data options
Voice & Data - select > LTE

5G is very weak in Orlando and my iPhone used to disconnect because it was on > 5G AUTO (it was trying to connect to 5G network which was almost absent and then trying to switch back to LTE). If 5G is bad in your area, there is no point to try connecting to it. Just use LTE network only and you should have no issues with dropped calls (I hope it helps).

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956 replies

Dogcow-Moof

Level 8

37,151 points

May 31, 2021 6:31 AM in response to machado22

If your phone does not ring when receiving a call, that's an issue your cellular carrier has to resolve.

That has been the fix every time.

c.c.chen

Level 1

4 points

May 31, 2021 10:50 AM in response to machado22

Who is your carrier? May I ask?

Jun 2, 2021 12:48 AM in response to pvelten

I too have this issue and my carrier is US Cellular. I even went into the store and had the SIM card replaced and it’s still giving me issues!

Jul 4, 2021 10:52 AM in response to Dogcow-Moof

How can that be resolved with the firmware?

[Edited by Moderator]

Dogcow-Moof

Level 8

37,151 points

Jul 4, 2021 7:17 PM in response to hflhdfcrvztpv

The cellular providers will need to hold their supplier (the manufacturer of the cellular base station controller) responsible.

Dogcow-Moof

Level 8

37,151 points

Aug 8, 2021 9:56 AM in response to kadugui

Apple has no control over the vendors of cellular base station equipment and towers.

Aug 8, 2021 10:35 AM in response to Dogcow-Moof

Apple built the phone correct? Why didn’t apple build a phone compatible with carrier towers?

nprao4

Level 1

8 points

Sep 13, 2021 11:34 AM in response to joxesCA

I’m having this issue too. I bought iPhone pro 12 max thinking it’ll be super fast with 5G. But I’m so wrong

Sep 14, 2021 9:12 AM in response to Dogcow-Moof

We don’t have 5G in our area. But the LTE and cellular service isn’t as good as on older phones.

antdude

Level 2

243 points

Sep 15, 2021 12:07 AM in response to joxesCA

I was hoping iOS v14.8 would fix it, but it did not. Will v15 fix it? :(

Dogcow-Moof

Level 8

37,151 points

Sep 15, 2021 12:34 AM in response to antdude

No one could say, but I suspect an iOS release won't fix a carrier issue.

Dogcow-Moof

Level 8

37,151 points

Oct 10, 2021 9:38 AM in response to Darth151

Again, if your issue is with LTE service, I've explained before what is likely occurring.

Dogcow-Moof

Level 8

37,151 points

Oct 10, 2021 6:41 PM in response to wtfg

Because Apple isn't going to break their product.

It's up to the carrier to fix their network, and I suspect iPhone 13s experience the same issues for the same reasons.

Dec 3, 2020 7:36 PM in response to joxesCA

I have purchased iphone 12 pro 15 days back. Have been facing the issue of loss of signal occasionally and toggling airplane mode gets my phone connected to network again. Was worried but seeing many people facing the same issue tells me i am not alone in this. Hope apple comes up with a correction because i dont want to see such an expensive phone not perform the basic functions of being able to make and receive calls. Thanks!

Dogcow-Moof

Level 8

37,151 points

Feb 14, 2021 4:40 PM in response to Sillydg

Sillydg wrote:

He said that he believed that the Verizon towers were not configured correctly to choose the right signal band and the Apple engineers would contact Verizon to resolve the problem. On Wednesday afternoon I suddenly had two-three bars of signal strength, and I have not had a problem since.

Which confirms the fact that it is a carrier issue.

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iPhone 12 losing service