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

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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

Dec 2, 2020 6:12 AM in response to Jlvela92

Glad to see that journalists are taking this issue seriously. If we cannot communicate, miss important business calls or drop calls with clients it's all bad. Huge apple supporter so I know they will resolve this one way or another but also sad that it had to get to a point where the press is getting involved to help support a community of early adopters and Apple supporters.


https://www.forbes.com/sites/gordonkelly/2020/12/01/apple-iphone-12-pro-max-iphone-12-mini-4g-5g-cellular-signal-problems-iphone-11-pro-max-upgrade/?sh=1fe7cc32123b


https://9to5mac.com/2020/12/01/iphone-12-dropping-service-unexpectedly/


https://www.tomsguide.com/news/iphone-12-has-a-serious-signal-problem-what-you-need-to-know


https://www.indiatoday.in/technology/news/story/apple-iphone-12-hit-by-strange-bug-that-causes-lte-5g-signal-drops-1746112-2020-12-02



Dec 2, 2020 6:15 AM in response to dbagnall

I believe this a much more prevalent problem than we realize. Analysts on Wall Street have now picked up on this. I am shocked that Apple hasn’t acknowledged this or seems to be working on a fix. Without any real 5G coverage, the 12 is tough sell to begin with. Losing cell service every 10 minutes is tarnishing the reliability of the brand.

Dec 2, 2020 1:34 PM in response to Brainfear

Brainfear wrote:

Exactly what I’m going to try and do. Phone just doesn’t work. Did all the tricks and swaps with no help. I have never seen this phone kick into 3g. Just goes no service. If I didn’t send my iPhone 8 in I would be using that. Gonna go to Samsung.


Feel free.


It’s very likely that a 5G Samsung phone will behave in the exact same manner if the issue is what I described earlier.


With each new comment it definitely seems to be that is the case.

Dec 2, 2020 6:15 PM in response to joxesCA

I as well have found this an issue. I’ve had the new phone for 4 days and it has happened 3 times so far once at home and twice while driving and had to reset the phone to re activate the service. As far as the SIM card the Verizon employee switched the new one that came in the phone to the one in my old iPhone XR. Didn’t really know why or ask as to why.

Dec 2, 2020 6:21 PM in response to joxesCA

I have also reached this phase with Apple Support and the Engineering teams. I had shared this thread with the support by uploading these web pages as screenshots to document the scope of the issue. This is disrupting our business and while I have had mixed results from contacting apple, ultimately I do know that they care about making a solid product. They need to reach a threshold of actual reports and velocity of reporting to properly prioritize.

Dec 2, 2020 6:28 PM in response to dbagnall

I am doing my best to save everyone from a painful, time-consuming carousel with Apple Support and Engineering. They don’t know how to fix this, or they would have done so. Apple is a fine company and one that I know cares about their products. But this one has them stumped or they would have come up with a patch. There must be many bugs when rolling out a new iPhone, and this is one of them. Personally, I have to pay attention to how long I can go without returning the phone, so I don’t get stuck with an expensive paperweight.

Dec 2, 2020 7:00 PM in response to joxesCA

I had this happen on my 12 pro on xfinity mobile a few times. Dropped signal in a store and even after leaving and driving 5 miles in suburban Philly with great service it wouldn’t get a signal until I toggled airplane mode.


these were locations that were total dead zones with my 6s and old carrier AT&T, interestingly, but seemed to be mostly good signals with xfinity (Verizon) on the 12 pro.

Dec 3, 2020 1:36 AM in response to victuals

victuals wrote:

They don’t know how to fix this, or they would have done so.


That is a wildly incorrect assertion.


To fix a problem, they must first be able to reproduce it.


Not every phone is having this issue, and in fact most are not.


That doesn’t mean it isn’t an issue, but rather if they can’t reproduce it themselves, it is wildly hard for them to debug.

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iPhone 12 losing service

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