"No Service" on my iPhone after iOS 14.7.1 update

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.

What model phone?

Did you check the modem firmware version in Settings/General/About? What did it show?

I have an Iphone 7, and having the same problem. No servir available. I go to settings -> cellular -> no menu.

also when I go to settings-> general -> reset-> reset network, it says to update iOS, but it is updated to 14.7.1. On have no option to upgrade or downgrade. Please help

My modem firmware was empty, so I tried restoring from factory settings and now my phone won't activate as part of the restore process, tried activating via WiFi and 2 different MacBook Pros, so if anyone sees this and has the same problem I recommend you do not do the same. Now I can't access any of my banking or 2FA apps (hopefully nothing prompts me for 2FA in the next few days).

They've got me going into a service centre now to resolve it.

Me too in my new iPhone 12 mini's iOS v14.7.1 (I didn't check before the upgrade) with VZW. Old iPhone 6 + don't have this problem. :( Weird that an iPhone 11 Pro Max's iOS v14.7.1 (VZW too) don't have this problem. Confused!

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?

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

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.

ich habe seit dem Software Update "14.7.1" das gleiche Problem.

Mein Handy findet kein Netz mehr. Ich habe alles ausprobiert was es an Möglichkeiten gibt.

-->

Flugmodus aktivieren und deaktivieren

iPhone neu starten

SIM Katen überprüfen

Netzwerkeinstellungen zurücksetzen

Netzbetreiber überprüfen

Sprach & Daten Ändern

Auch das neue Software Update iOS 15.0 hat leider nichts bewirkt.

hbayar_morph wrote:

iPhone 7, no service after updating to 14.7.1

See iPhone 7 Repair Program for "No Service" Issues - Apple Support

There's a SIM in it, but since the update itself has broken cellular service and resetting to factory settings doesn't fix it then resetting just leaves you with a paperweight you can't activate.

Apple is not going to take any immediate steps, unless you take your phone to Apple. It is a problem with YOUR PHONE, and is not anything that Apple can fix remotely.

The FIRST STEP for this problem is to disable VPN and delete VPN profiles.

or could be Base Band chip fault

ministerminis wrote:

or could be Base Band chip fault

Or a broken antenna (very common in some iPhone 7’s)

Or corrupted baseband firmware

Or an account provisioning problem

Or many other things