"No Service" on my iPhone after iOS 14.7.1 update

it seems intermittent but there's articles all over the internet about it right now and reddit threads with heaps of people talking about it. Something went wrong with this update and it looks like under certain conditions its fucking up phones. I haven't seen anyone talking about having successfully resolved this yet. So seems like the options are wait to see if an update comes to fix it, or head to an Apple store.

If it failed then its the 14.7.1 update that caused it to. The top post on the iPhone Reddit right now isn't about this very thing because hundreds of people coincidently all had their hardware fail the same time they updated their phone. Software updates can cause hardware failures, so a hardware failure doesn't mean it wasn't related to 14.7.1 so I'm not discounting that possibility. As long as they fix it tomorrow or give me a new phone I don't really care exactly what failed, I just want to be able to access my phone and 2FA apps, WhatsApp, my mobile only bank, and my covid vaccine certificate again.

This has been happening on my iPhone 8 and believe it started after 14.7 update. I was hopeful it would be resolved with the 14.7.1 upgrade, but obviously not successful. I tried resetting my phone from a backup and got a new sim. Fingers crossed for a solution with 14.8.

Have had the same problem with my Xs. Phone worked just fine, update, phone doesn’t work anymore.

I tried everything customer service suggested which ended in hooking the phone up to the computer and reinstalling

everything. Outcome: Phone is stuck doing the installation (Have read about this somewhere on here, too.) REALLY REALLY frustrating! If someone would have dropped my phone, they at least would have reimbursed me …. but an update frying my phone I am the one having to pay for it (at least that’s what customer service told me.)

Did you update over the air or using a computer? Have you checked the modem firmware as I posted? If it’s an A1660 it is probably the hardware failure that the recall covers, but that probably won’t help where you are.

No, it's definitively a software problem with 14.7.1. I have an iPhone 7 and and a SE 1st generation here and both are on T-Mobile. Coverage at home is really good. It's about 400 yards to the antenna tower.

Both phones have the "No service" issue here since the last update. And it would be rather strange that two iPhones have a hardware failure in the baseband section at exactly the same time.

If you believe that you will never solve it. If it was a problem with 14.7.1 why don’t you see 10’s of thousands of posts from the roughly 500 million phone users that have been updated to 14.7.1? Why don’t any of the 4 iOS devices in my household have the problem?

Have you checked to see if your baseband firmware has a value?

You probably have so many points because you don't read what people write and keep posting the same stuff over and over.

Yes there is a problem with my phone, I know that, because my phone doesn't work. I'm not even saying that the reason it's not getting service is software related, it could well be a hardware problem, I'm saying I believe its a hardware problem caused by a software update. If you don't think software can cause hardware problems then you don't know software.

I already read your troubleshooting advice, which by the way is bad advice. I checked the about section, and my modem firmware was indeed blank, so I followed those steps to restore the phone (exactly as you posted) which resulted in it being unable to activate. I've had it diagnosed in a store now and even with the blank firmware they've confirmed there is a hardware problem.

The fact that if you search just "14.7.1" the first 3 news article results are about the "no service" issue being experienced by many users shows that it's not an isolated problem and not just a coincidence. My guess is that since Apple rolled out the 14.7.1 update to address serious zero day security exploits they became aware of, they rushed it without adequate testing that is resulting in damage to hardware for some users. There are many other reported problems with this update including many people reporting massive battery drain (e.g. from 100% to 0% in a few hours) and issues with FaceID no longer working. I wouldn't be surprised if under certain circumstances the software changes they've made is resulting in too much voltage being drawn by certain components (thus the huge battery drain and damage to hardware). Just because its not affecting 100% of users doesn't mean it's not from the software update, there's probably specific edge cases or circumstances in which it happens.

So if anyone reads this and has the same problem. Restoring your phone exactly as the above troubleshooting advice says will just result in a factory settings phone that still can't get service and won't activate so it cannot be restored or setup again, so even less useful than a phone that only works on wifi.

slurmzmckenzie wrote:

You probably have so many points because you don't read what people write and keep posting the same stuff over and over.

You are clearly clueless about how the forum works. The ONLY way to get points is to post a response that the Original Poster in a thread marks as “Helpful” (5 points) or “Solved” (10 points). So my roughly 140,000 points means that somewhere between 14,000 and 28,000 users have marked my posts as Helpful or Solved. It is actually wasting my time to post in this thread because I can’t get any points for posts I add, which might mean that I do it in an attempt to be helpful.

I post the same stuff over and over because, with my years of experience, I know that 90% of people who add a post to an existing thread haven’t read any of the thread they posted to, so haven’t seen any of my previous posts.

slurmzmckenzie wrote:

the fact that if you search just "14.7.1" the first 3 news article results are about the "no service" issue being experienced by many users shows that it's not an isolated problem and not just a coincidence. My guess is that since Apple rolled out the 14.7.1 update to address serious zero day security exploits they became aware of, they rushed it without adequate testing that is resulting in damage to hardware for some users.

The flaw in that argument is that there have been “no service” posts after every version update that has ever come out. And between updates. Mostly for the iPhone 7. Because there is a hardware defect in some model iPhone 7’s that might be triggered by an update (any update), but that doesn’t make it any less of a hardware problem. And it’s why Apple has a replacement program for model A1660 phones that I know you have seen because I have posted it and I’m sure you read the entire thread.

Thanks for posting! Yes, APN settings can cause this error, if your carrier allows access to APN settings. In the US no carrier does; they download the APN settings to the phone, which are not user editable.

sorry that was a fairly snappy response by me, I'm just annoyed the same way you are but from the other side. You get sick of posting the same stuff because you're right 99% of the time something is wrong it's usually the users fault, but I used to work the repair service in a phone shop and now I work in tech, so I wouldn't be here if I at all thought it was anyones fault but apples, and people like yourself and me who do know what to do then have to go through the process with people on the other end endlessly walking you through the same troubleshooting stuff you've already tried before you even made a post.

So I've been on chat and the phone with Apple for hours now just trying to get them to fix my phone and not charge me for it and have done through the endless process of having to troubleshoot, troubleshoot again, get transferred to someone else who asks you to do all the same stuff again, repeat, repeat.

I use a lot of services (including a mobile only bank that does not have branches or a phone contact, and I cannot login with a browser without the 2FA on my phone) that are ONLY available on my phone (and I'm currently overseas so rely heavily on google maps not to get lost) so being without a working one is a huge problem for me so I'm just annoyed at Apple.

same problem here, since Update to iOS 14.7.1

iPhone 12 pro Max

sim works in other phone perfectly.

also on an iPhone with older Version 14.6

Modem Firmware Not empty.

after restart the phone Signal is available.

but 2-3 Hours later, Signal is lost again.

in

eliMaster wrote:

Grüße aus Deutschland :)

Same Problem with my iPhone 12 pro on a T-Mobile Germany plan since the update. The phone stays in edge ca. 15 minutes before it connects to the 4G network.

That is NOT the same problem. The problem discussed in this thread is that the phone gets NO SERVICE AT ALL. No EDGE, no 3G, no 4G, no nothing! If your phone gets edge and 4G that is a totally different problem.

Once again you show that you have no idea what you're talking about. It can actually be the problem in metropolitain and rural areas.

By now all German carriers have either switched off 3G or have a date set for doing so. GSM (EDGE) is being kept as a rather basic core service for M2M communication using SMS, visiting roamers from other countries (the problem with incompatible LTE bands) or for making calls deep in the woods.

T-Mobile Germany's GSM network is on 900 MHz. In metroplitain areas T-Mobile's LTE is on 1800 MHz and 2600 MHz. So you get a worse building penetration due to the higher frequency. Simple physics. So when you're having a phone with a degraded reception and your signal is not the best it's actually possible that the phone stays on GSM (and EDGE for data) for most of the time in the middle of a city.

For rural areas the scenario is a little different. There can be some fairly old sites that still are GSM only (no point in investing right now because the site only covers a road between two villages), some very recently build sites can be LTE only (no real investments in GSM anymore due to it being a basic core service) and the site in the village normally has both technologies.

Now LTE in German rural areas is operating on 700 and 800 MHz. The building penetration now is the same like for GSM. But when your farm house outside the village is near a GSM only site it's also possible that you're stuck with EDGE even with operators setting the network parameters that phones prefer LTE.