iPhone not working after 17.2.1 update

Went to T-Mobile today, and talked to several associate's ask them about iPhone iOS issue's with 17.2.1, everyone said they haven't had any customers with iOS update issue, I have a iPhone 12 Pro except for the problem with the hotspot issue which I solved, I'm not having any of the other issues which others are reporting. I know iOS 17.3 is still in beta and is due out sometime next month. When iOS 17.3 comes out I'll hold off on updating until I know that these issues are solved.

My iPhone 12 Mini on T-Mobile has no signal issue, however there an issues with Personal Hotspot. I can't connect my Galaxy Watch 4 to my iPhone after updating to iOS 17.2 and up(17.2.1) . Watch says: IP configuration failure. I couldn't downgrade back to 17.1.1, all I could install is 17.2 which wasn't good either. ****

I filed feedback with Apple.

[Edited by Moderator]

I just got this work!!! Here is what i done step by step:

1. I created new appleID
2. Logout my main apple ID on appstore
3. Log-in new appleID
4. Download couple softwares using password then appstrore start asking faceID
5. Logout new appleID
6. Log-in your main ID
7. Download couple softwares using password
8. BOOM Appstore starts asking my Face-ID!!!

@bobotompa,

This worked!

Since Apple is still signing 7.2, I was able to revert. Problem solved.

I am not so brave as to venture back into 7.2.1 territory after a week of utter frustration though.

I think I'll opt for the next major release instead.

Thanks...

Thats normal, its because 5g isn't available everywhere yet. Depending where you are depends if your phone goes to 5g or LTE. My phone does the same thing. Its normal, itll get better as the years go on.

17.2.1 isn’t working.

maps deleted all my favorite files

screen freezes up

both WiFi & Cell w/roaming isn’t connecting

no app updates

battery draining

background app refresh can’t be accessed to turn off

great job on the updates.

This update kicks me out of connecting to my provider too! Over the past 3 days, my phone has been freezing, stopping me from playing music, apps closing, when I get a call I hear nothing, my phone freezes when trying to read or scroll thru texts!! Worst update ever, Apple needs to fix this asap!! I’ve never had this many serious issues with an iPhone. Unacceptable.

Access to any internal resources will require a VPN (or ZTNA which installs a VPN profile). Along with internal resources, you can't access any of our Entra/Azure integrated cloud applications without coming from our ZTNA providers IP. Microsoft specifically has conditional access rules in Entra to list IPs that are allowed to connect to cloud apps, which if using a mobile device without a static IP you will need some kind of VPN/Proxy/ZTNA. If you don't have our ZTNA client installed, can't access email, teams, etc on your iOS device. This is best practice from every ZTNA provider (Zscaler, Netskope, Cylance, etc.).

However it is not the ZTNA (VPN profile) that is causing this, its the Intune Management profile (cert is valid until 2025), not sure if iOS treats them the same, maybe it does but we have tried the delete, reboot and reinstall steps. If we temporary remove these users from the ZTNA conditional access (so they don't need the ZTNA client) but keep the management profile on there from Intune the issue continues. If we remove the Intune profile add the ZTNA client (and profile) back the phone acts as it should (normal heat, phones calls work etc). As soon as the Intune profile gets applied the problems reappear. Its just strange because its only a few users and its across different models (XR, 14 and 15).

Going to open a ticket with our Apple Business/Developer account once the holidays are over.

Thanks!

The

quality Apple delivers here is unbelievable. This should not happen: after the

update to 17.2.1, it is no longer possible to connect to the service provider,

i.e. no calls, no text messages. WLAN works. Really, Apple, this is such a

lousy performance, shame on you. What

a letdown. What a disappointment. Get your job done!

Going back to a iPhone 8 Plus doesn’t need the the iOS 17.2.1 installed on phone to have needed services to work ( cellular service , text messaging, etc.) Apple and all carriers are not going to fix all issue for the small majority of us that are experiencing issues. I have friends that have older iPhones that this didn’t happen to due to the updates stop at iOS 16. I gave up and this has been an awful experience dealing with all involved.

Over the past week since updating to 17.2.1, I’ve had 2 calls with Apple support, and 3 with T-mobile. They both point the finger at the other. At least T-Mobile can get my phone working enough to connect to the network, but it only lasts 1-3 days, and then it won’t connect. A real pain over the holidays when I can’t use calling, texting, navigation as I’m traveling, etc. I don’t understand why they aren’t talking to each other to figure out why this is happening to so many people.

After update to 17.2.1, my iMac does not recognize my iPhone 11pro, so it cannot be backed up to my iMac now. Fortunately I did do a back up to iMac before upgrading from 17.2 to 17.2.1...

Anyone heard of a fix coming??

Just trying to see if anyone has found a fix. Apple has been absolutely no help. I made the mistake of factory resetting my phone to solve the problem, unfortunately now my 13 Pro Max is stuck on "Unable to Activate: An update is required to activate your phone". The thing is, my phone was already updated to 17.2.1 before i factory reset it so I'm really at a loss. Is anyone else having this issue? There's no problem with the SIM card as i was able to get an old iPhone 6S working, but it has zero storage space and I really need my Pro Max to work.

I’m downloading it right now and honestly I’m thinking about reconsidering lol apple know exactly what they’re doing . This whine iPhone thing been a scam . I’m honestly surprised that the newer phones are experiencing these issues . They’re already in trouble (sued) because they’re tampering with the bugs in older iPhones so you can get the new one lol apple get it together because the fact that 200 plus customers are experiencing these issues is ridiculous.

I'm facing network issues on my iPhone 15 Pro without even updating to ios 17.2.1 and it's really frustrating. I'm currently on ios 17.2.

From past 2-3 weeks, I am frequently not able to make calls even after both caller and receiver having signals.

If I do able to connect, the voice gets disconnected in between.

Once, mobile data was not working but in my friend's iPhone having ios 17.0 and the same network provider I'm having, was able to browse the internet.

This pretty much proves that something is wrong with ios and that current Apple Dev's work sucks.

We shell above 1000 bucks on a phone and it doesn't connect to internet, can't make calls, and what not.

I'm fond of Mac so decided to pick iPhone for the first time expecting similar, good xp.

Please hire good devs and fix the issue, Apple!

(From India)