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

Jun 29, 2021 9:20 AM in response to joxesCA

I am having the same issues. Since getting the 12pro I have intermittent signal/service issues. I have trouble loading sites, sending picture messages, streaming YouTube and accessing internet. Kind of frustrating. I was in the same place yesterday with someone who has T-Mobile also and their phone has great signal/service while mine didn’t. They have the iPhone7.

Jul 4, 2021 8:57 PM in response to Dogcow-Moof

I’ve been reprimanded for my comments not being pro Apple. So please could you tell me if I Should contact my service provider? Have you heard of anyone getting their 12 max pro to perform better and get better service by your suggestion? Why doesn’t it affect older models? My family’s phones are older and get better coverage in low coverage areas with the same provider.

Aug 8, 2021 2:40 PM in response to hflhdfcrvztpv

You can call your carrier and (politely) complain, but I can virtually guarantee they will just blame Apple instead.


Sadly, all cellular carriers are big corporations, and as such the loss of a few (or few thousand) subscribers is in the noise for them.


They likely won't bother to address the issue until the number of complaints reaches some unknown threshold that makes it worth rolling a truck.

Aug 15, 2021 3:47 PM in response to antdude

Hello:) I too have an iphone 12 mini 256gb in white. I live in a very rural area and I have to say I have not had any problems with reception. I am also with Verizon. No dropped calls and no slow speed. I have never had a No Service issue either. If I had I would most certainly say so and get something else. In my case the phone has been great and I would buy it again. I only hope that by the time I need a new phone that a small size like the mini will be available as I don't want to carry a large phone. I really hope your issue is solved.


~Katana-San~

Aug 15, 2021 6:48 PM in response to hflhdfcrvztpv

Hello again:) I am here in this discussion just as you are. The whole point of this community is to try and help each other with a concern or problem and there is obviously a problem. I can understand your frustration and only hope to help you. I have followed this thread for a long time and I would like to see this solved. As I stated before I really do hope your issue is resolved.


~Katana-San~

Aug 18, 2021 7:14 PM in response to Jamielh1

Hello:) I hear what you are saying and believe me when I say I am sorry you are having this problem and there is a problem for sure. Do read the post link that Dogcow-Moof posted to you. It may explain some of the things going on and I find it an extremely interesting piece of information. As I have stated before I so hope this issue does get resolved for you as I can see it is very frustrating.


~Katana-San~

Aug 19, 2021 11:40 AM in response to Ca5tleguy

VOIP is a completely different issue, and relies upon whatever application is being used to provide you with VOIP service; the iPhone does not have VOIP baked into iOS.


If you are referring to "Wi-Fi Calling," that is a cellular provider issue as they handle the interface between the Internet and their phone network.


If you mean Skype or similar, it would be that provider's app and you should contact them.


This isn't am iPhone hardware/firmware issue, it's a third party software or cellular provider issue, but I'd be happy to help you diagnose it further.

Aug 19, 2021 5:11 PM in response to Dogcow-Moof

I won't quibble with you over the differences between calling over wi-fi and VOIP. I will stand by my statement that something is simply not waking up and connecting properly after my iPhone 12 Pro Max going to sleep or being put to sleep. We can call it a connectivity or re-connectivity issue if you wish. That this issue appears to be most prevalent with the iPhone 12, and it is not a problem with other iPhone models that I am aware of. No workable solution has been found for this issue. This problem has been diagnosed ad infinitum by many armchair geeks, so I don't need any additional diagnostics from you. A solution, however, would be much appreciated.

Aug 19, 2021 5:26 PM in response to Ca5tleguy

For being prevalent, there have been few to no reports of it here, but I won't argue that.


The bottom line is whether Wi-Fi calling or VOIP, it's reliant upon third party software Apple has no control over.


Every iPhone 12 (not Pro, not Pro Max) I've ever played with reconnects to Wi-Fi immediately upon waking up, just as you would think it would. I even stopped in an Apple Store just to try this out earlier today and every demo 12 they had came up on Wi-Fi as soon as it was awakened.



Aug 20, 2021 3:16 PM in response to Ca5tleguy

I (and many I personally work with) have 12 Pro Maxs and have never seen this issue in any form.


No, I don't work for Apple - no one here not specifically denoted as an Apple employee does.


However I have been working with Wi-Fi and wireless technologies since before the first AirPort routers were introduced.


My 12 Pro Max and every iPhone 12 of every flavor I've ever seen in any Apple Store, not to mention all those used by all my coworkers and others I've talked to instantly reconnects when awakened.


That seems to indicate it may, again, be an issue with your Wi-Fi access point or interference from other radio signals or other nearby Wi-Fi networks.

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iPhone 12 losing service

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