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 1:22 PM in response to JettAZ

I tried Network Resets, System Resets, new SIM cards, switching SIM cards, hard re-starts, soft re-starts, even wiping the phone(s) and reprogramming from my Mac (with the help of Apple Support). Nothing worked. Dropped signal every time I wasn’t looking. If anyone has a solution I haven’t used here, I would love to hear it.

Dec 4, 2020 5:32 AM in response to Dogcow-Moof

How about this? I have had all of the problems with my iPhone 12 pro that everyone else is having. One difference is that all my problems are right from my house, meaning the same tower(s) are being accessed.


Now my wife’s iPhone Xr is dropping calls! Again, without leaving the house.


I talked to VZW who ran diagnostics on both phones and found nothing wrong. Suggested NOT using Wi-Fi, which seems counter to logic, but that made no difference.


This seems to confirm that there is a carrier problem, as you said.


I am thinking that it’s a really bad combination of carrier and hardware and some of us are caught in the middle with no fix.


I am glad your phone is working.


Dec 4, 2020 10:56 AM in response to joxesCA

I have been having this same issue with my iPhone 12 Pro 256gb on Verizon. I have swapped the original 5G SIM with a LTE SIM. Still drops service. While I'm at work during the day, it's fine. It seems to happen more at home (switching towers I'm assuming). I have spoke with Verizon multiple times. I thought it was Verizon as first, but I believe Apple is to blame on this one.

Dec 4, 2020 11:11 AM in response to joxesCA

Same issue here. Though it was my imagination. I just switch to at&t from Verizon. Still happening. Sudden loss

of cell signal. Won’t return until I turn on airplane mode and turn off again. I’m not in a 5g area so can’t say it’s a 5g issue. Very frustrating to pay this much for a phone and have these issues. It’s very random. Sometimes I go a week with no issues then all of a sudden it happens again.

Dec 5, 2020 8:02 AM in response to joxesCA

I see we’ve all been having the same problems more or less. I purchased the IPhone 12 pro max through Verizon on pre-order. The moment I activated the phone I experienced an array of problems. Immediately after activating it kept dropping signal as if the phone was not activated. I reset the phone immediately and it appeared to fix the problem. That was only for the moment. It came back once I moved to a different area. This area I moved to normally has great LTE connection but the phone didn’t recognize it as such because it kept showing no data. I toggled airplane mode on and off and I would miraculously have 3 bars. If I didn’t toggle air plane mode it stayed with no service. I couldn’t understand why it never dropped to 3G like my previous iPhone XS Max did. I’ve heard Verizon’s trying to get away from its 3G so on iPhone 12 they don’t include the ability on the carriers software. My phone calls are horrible. It cuts in and I experience dropped calls. When dealing with Verizon I missed the 14 days return policy because I was too busy trouble shooting with Verizon and apple. I’ve been through Tier 1&2 support with both company’s. They both blame each other for the issue. I loved Apple up to this point and now I’m considering taking my business else where. Btw I didn’t mention anything regarding 5G with Verizon because the isn’t any in the state of Rhode Island. What a waste of a 5G device. HIGHLY DISAPPOINTED!!! I’m scheduled to go into a Apple store next week I’ll keep you updated

Dec 7, 2020 7:54 AM in response to joxesCA

This happened to me 4 times yesterday while driving from CT to NJ. I had to reboot the phone to get LTE and GPS working again. I'm on an iPhone 12 Mini via AT&T. I also felt like the battery drained way faster than normal on that trip. My theory is that it is software related and a bug is causing it the single to be dropped and the phone works hard to re-establish the connection which causes the battery drain.

Dec 7, 2020 8:02 AM in response to Dogcow-Moof

That would make sense if it wasn’t for the fact that this issue isn’t limited to a particular carrier. That’s great that you’re one of the people not having this problem but if you read through the thread you’ll find tons of people from AT&T, T-mobile, etc that are experiencing the same issue. Though I will say I’ve noticed more from Verizon.

Also doesn’t make sense because I’ve never experienced data issues until I upgraded to the iPhone 12 pro max.


5G can’t be the cause of the problem because I don’t use 5G and I have the setting currently set to LTE only. That wouldn’t explain why in a area it would drop its LTE signal doesn’t try to reconnect. I shouldn’t have to go to airplane mode to restore service to my device. Sounds like a Apple issue.





Dec 7, 2020 8:18 AM in response to ItsAWolf

It’s definitely and most surely an APPLE issue, because it stems from many countries. I feel they are taking more action deleting messages from this forum, than addressing the issue and resolving, fixing, or at the bare minimum ACCEPTING this is a very key issue.


a phone that does not work as a phone, for that price, for obvious apple lovers who wanted to have it first. They’re réaction is abysmal!!


i had to buy an iPhone 8 runaround and put my business line in there, the iPhone 12 pro I have, is a game phone for my nieces and nephews (joke)

Dec 8, 2020 10:58 AM in response to joxesCA

This is also happening to my new iPhone 12.

I received the phone direct from Apple and have T-Mobile and live on Long Island NY


it has happened 3 times that o have seen in the last week.


the phone goes to 1 bar and LTE flashes on and off and I can’t make phone calls or use data. The only fix is to wait it out ( usually fixes itself after about 10mins ) or to turn off my phone and back on.


spoke to Apple and was escalated to senior advisors that ran a diagnostic log on my phone and sent to the engineers.


waiting to hear back but I honestly think this will be a while

until it’s fixed.

if it’s software that would be easy for them but if the phones themselves need to be replaced that will take a while.


my gf also got a new iPhone 12 and hers did it the other day. So it’s def widespread.


I also have LTE on and she has 5G on.

I have tried everything as well. Still persists

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iPhone 12 losing service

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