iPhone not working after 17.2.1 update

After updating my iPhone last night to 17.2.1 I can no longer connect to my network provider. Tried the resets and still it does not work!

very frustrating.

Trusted Apple and iPhone for years, now not so sure

Posted on Dec 21, 2023 8:24 AM

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Posted on Dec 28, 2023 10:22 AM

Solved my problem after 8 hours of troubleshooting! After the 17.2.1 update, my iPhone 14 Pro Max would not send or receive calls and got hot from accelerated battery drain. First AppleCare walked me through hardware diagnostics, network resets, backups and restores but the problem persisted. Next, Verizon helped me with a new eSIM, but the problem continued. Next, I focused on my company's corporate software, because I was intrigued by the VPN discussion in this forum. While I don't use a VPN, my iPhone is managed by my company's installation of Microsoft InTune, which I noticed (Settings:General:VPN & Device Mgmt) had a signing certificate (IOSProfileSigning.manage.microsoft.us) that had expired December 12, 2023. To test this theory, I removed this Management software and my phone's cellular calls worked perfectly again! So for the final steps, I worked with my company's IT department to reinstall the Management software, which has an updated IOS signing certificate, and the phone is now back to normal. Sharing in case others find my painful tech journey useful.

370 replies

Jan 17, 2024 12:56 PM in response to Hedgehog64

After having been told NOT to update IOS 17.2.1; I forgot to close the “automatic update” button. The next morning, I found out that, most of my contacts that had photos to describe who they were HAD all been DELETED, and Replaced with the first letter of their last name. While typing out messages, other letters were being added to the word and underlined(?)


When to what to add a photo to a contact, after you click on the photo, it sends you to your photos, but they are “posters”! NOT individual photos…

Jan 18, 2024 8:08 AM in response to Hedgehog64

I called my carrier last night and yelled at them about it and suddenly since I got in the car to drive for work everything is fine! They claimed it’s Apple but I yelled at them how I’ll def make sure everyone hears how they don’t provide what they say for service. Then it’s all fine! I’ve been driving with Bluetooth on and usb plugged in and music from all apps work in the car as well as maps and texts and calls. I began driving over 5 hours ago. So perhaps yell at your carrier

Jan 18, 2024 1:13 PM in response to Hedgehog64

I'm so sad about what the ios 17 update has done to my iPhone 13, which was previously working perfectly. It now randomly slows to a crawl, apps start crashing, especially the camera app which now tends to crash as soon as I hit the button to take a photo. My quick and dirty workaround for this is to do a screenshot instead of hitting the "take photo" button. Safari now gives multiple "a problem repeatedly occurred when loading this webpage" errors. Chrome is no better. Every so often the screen goes black and a little white spinner appears. If someone texts me while this is happening, I don't get the text (and it never arrives, even after rebooting the phone). During the night it often starts to make that "beep" sound every minute or so that normally indicates that you have plugged in a charger, and I have to reboot the phone to stop this. I really wish I could go back down to ios16 but this is impossible. I'm assuming that what I will need to do is to get a new phone, which I can't help thinking may be Apple's plan.

Jan 18, 2024 4:08 PM in response to Londrino

I am with you too bro my mom’s iPhone 12 Pro Max and my iPhone 11 have been having severe battery draining issues and our phones are brand new with 100% battery health (we do not use our phones that much) after the update my phone will be at 77% and then go off and come on at 10% or not come on at all it’s frustrating and we really need a fix

Jan 19, 2024 12:48 PM in response to Hedgehog64

Just bought a new iPad 10.9 iPad, A14 Bionic Processor, iPadOS, WiFi, Silver.


Setup went well until Software Update iPadOS 17.2 was installed. Now no connectivity to the Internet and cannot complete the download of by Backup from the iCloud. ????????


Found this site and realise this problem has been known about since December 2023. Surely apple providers must be aware of this problem from their cusrtomers and are complaining to APPLE. We need a fix NOW.

Jan 22, 2024 12:57 AM in response to Hedgehog64

Following issues I am facing with 17.2.1 update:

1) select photo in library n share click on WhatsApp/other app doesn’t respond

2) Select Photos and share in mail, while click on send icon, option was shown previously for small, medium n large attachment, but presently it’s showing only Large option


any solution for above issues, since I am facing lots of inconvenience

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iPhone not working after 17.2.1 update

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