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).

956 replies

Dec 31, 2020 5:33 PM in response to Branta_uk

I guess you weren’t around when Apple gave free cases to IPhone 4 users, because a manufacturing defect caused the phone to lose signal when held a certain way.


When a user upgrades to a new phone and starts experiencing signal issues that they didn’t experience with their previous phone, then the new phone is a possible culprit.


Regardless of who is to blame, Apple and the carriers are all going to have to work together to find the cause. Passing the buck doesn’t solve anything.

Jan 1, 2021 6:11 AM in response to joxesCA

Ive been having the same issue, even had the phone completely replaced (when i told verizon the first time about it they tried to send me a used iphone 12 when it was brand new so obviously not the first time they've had the issue) But i thought it was a hardware issue but even replacing the phone it started doing the same thing. Its been months still having this issue on the daily, Hopefully a fix comes soon...

Jan 1, 2021 6:14 AM in response to RileyEdwards1

RileyEdwards1 wrote:

Ive been having the same issue, even had the phone completely replaced (when i told verizon the first time about it they tried to send me a used iphone 12 when it was brand new


Note that at least for the US, the Apple warranty terms state:


If during the Warranty Period you submit a claim to Apple or an AASP in accordance with this warranty, Apple will, at its option:

(i) repair the Apple Product using new or previously used parts that are equivalent to new in performance and reliability,

(ii) replace the Apple Product with the same model (or with your consent a product that has similar functionality) formed from new and/or previously used parts that are equivalent to new in performance and reliability, or 

(iii) exchange the Apple Product for a refund of your purchase price.

Jan 5, 2021 4:55 AM in response to joxesCA

Just upgraded to iPhone 12 and two days ago started to drop cell service. I have to turn phone off and on to get service back. I had Apple computers, phones, and iPods. 3 years ago I switched to Google pixel 2xl. I had that phone for 3yrs without a problem but really wanted to get a Apple Watch and upgraded(or so I thought) to an iPhone 12. This does not make me happy with my choice right now.

Jan 13, 2021 5:12 PM in response to joxesCA

Same issue, I don't even have to drive. I loose service when marked and can see my status bar change from 5G back to bars and then back to 5g and keeps saying no connection. Very frustrated, either push an update or sense solutions. I have also noticed that because if this my battery life does not last long. I can go from 100% in the morning to 20% by 1pm, and practically have to keep it on a charger as much as possible, I will be looking to send this phone back for a full 1,000% refund.

Jan 13, 2021 8:41 PM in response to joxesCA

No help here, but commenting that we've tried everything. Tmobile worked with us for three days with no results. Contacted Apple and they said the issue is with tmobile, even though we have multiple devices with tmobile with service, except the iphone 12. Their senior advisor was an arrogant petulant fool that took offense after i mentioned that the issue wasn't an isolated issue to Tmobile; I invited him to read the 1000s of comments here, including a published article from Forbes, from people from multiple carriers. Hoping someone has an answer.

Jan 26, 2021 10:12 PM in response to rc philippines

I find it amazing so many Apple customers here are experiencing issues that are very well known and Apple will not lift a finger as of yet to repair the issue.

I posted weeks ago how an Apple customer service rep emailed me and called me and that lasted about 2 phone calls & many broken promises later. Fast forward to today and that person has not replied to any other emails and has not called me again as promised. Now let that sink in for a few seconds and ask yourself if our outrage over these brand new, $1,000 phones is justified or not?


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iPhone 12 losing service

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