iPhone not working after 17.2.1 update

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.

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 fix the issue, Apple!

(From India)

I've also got a problem with this update with the alarm as it no longer works properly. Before I was able to customise my alarm with any song in which case I would choose the loudest to wake up as I tend to sleep through alarms. However with the new update the alarm ringtone is stuck on the provided ones by apple and they aren't. Effective at all as they simply turn off after only one ring. It's a terrible feature the older alarm features were so much better

After updating my iPhone to 17.2.1, my iMac stopped recognizing the iPhone. Now I cannot back up my iPhone or do a restore, etc... I cannot figure out how to get my iMac to recognize iPhone. Help needed!!

after installing update 17.2.1 my phone Sean has lost all touch I can't reset it nothing put in a password. it turns on but nothing is happing I can't get past the lock screen. can any one help don't get paid for anther 2 weeks and I can't buy a new phone. I have a iPhone 14 plus

for me the problem was believe it or not had nothing to do with Apple. It is the ACP affordable connectivity program. My carrier Simplemobile told me my account was no longer linked to the ACP program and she relinked it and nowI have full data, phone back to normal. When I attempted to make a call I was getting your phone is not activated. Coincidentally it happened the following day I updated to 17.2.1. For me, it was just an odd coincidence that apparently the ACP program is re-certifying people at the beginning of the year. So call your carrier and ask them why your phone is not activated any longer

If you can take your phone to Apple store with a service center, they can check the hardware on your phone for you to see if it’s damaged for free. Or use the Apple support app through Wi-Fi on your phone they can do a diagnostics check without bringing the phone in. I did this before it worked very well.

I updated to 17.2.1 today and when someone sends me a photo and I click on it to make it larger, it brings up text that says “photo 5.3gb” and no photo is visible. I tried saving the photo to my album and it won’t do that either. I’m mad! I never would have updated my phone if I knew there were issues.

Maybe you should take your phone to your cell phone carrier. They can put a different Sim card in just to check it to see if your Sim is damaged ……. or go to an Apple Store, to the Genius Bar, and have them do a free diagnostic check on your phone

Has it been determined? Is this an issue for Verizon customers only? I did update I have AT&T through Simplemobile and mine is fine on a second generation iPhone SE.

please, everyone list your phone model and your carrier

Verizon, iPhone 13 Pro max

Apple please fix this!

After 3 trips to Verizon, and a scheduled call from Apple that never occurred (they didn’t call me even with email verification) I’m out of ideas. I did resets, restores, new cards. This is ridiculous

have had same problem for over two weeks - no connection to cellular network. I am on T- Mobile. Have had several calls with Apple, no help except they spent a couple hours collecting diagnostics. T- Mobile has installed several eSims that work for a little while, then stop. This update has disrupted thousands of us during the holidays, with no public acknowledgment by Apple, no help, and no end in sight. A disaster for the Apple brand.

If your phone is unlocked you could try another carriers SIM ? Verizon is GSMA , CDMA network. Others are GMST whatever that’s worth. Maybe ask Verizon to unlock your phone.

when you do a reset through iTunes on a PC or Mac laptop. Can you do the reset without having the Sim card in it that should be possible see what happens. Then see if the phone works OK through Wi-Fi only, toggle off Bluetooth and cellular data

Number one reason why SIM doesn’t work, you didn’t pay your bill !

Seriously though, maybe there were hacks at Verizon, T-Mobile, etc. and some persons accounts were compromised and de-activated. Or iPhone users with simple passwords were hacked.

The problem may be along these lines please see the link, to an article the 17.2 was an emergency update because of spyware, hacking, etc. 17.2.1 was rushed out, shortly after 17.2. Very suspicious. Spyware, malware, something, damaged your hardware.

https://www.forbes.com/sites/kateoflahertyuk/2023/12/12/ios-172-apple-just-gave-all-iphone-users-12-new-reasons-to-update-now/?sh=2b2213b541ac

OMG!! THANK YOUUUU, THANK YOU @ Lawrence Finch!!! YOUR POST & about the VPN app finally resolved my issue!! I deleted my VPN app and: Tadaaaa! Right away my iPhone 15 pro Max started working again!! Dankeschön! PHEW! :)

Now I am of course veryyyy hesitant to download the VPN app again…. :-}