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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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Question marked as Top-ranking reply

Posted on Dec 27, 2023 2:24 AM

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!

Complwte day is waiting all my business calls are suffering what kind of update is this ?


370 replies

Jan 16, 2024 10:47 PM in response to Hedgehog64

Appel should have a way to go back to a previous iOS, I couldn't go back and I can't find an easy way to do it, it's frustrating since I lost some apps with my PC that they don't detect now and I need them to work. I want to go back to the previous version but I don't know how from my cell phone or in an easy way to restore a version 16.

Jan 17, 2024 3:04 AM in response to Hedgehog64

never had any issues with other updates. This past update as soon as it was done installing my battery draining issues began. Even while charging the battery drains. I put in battery saver mode and the same happens. I have to completely leave my phone alone and not use any app to get it to charge properly and then it’s still slow. My battery functionality level is the same as it’s been for months. This problem only started less than 48 hours ago after the update. Fix this asap

Jan 17, 2024 3:20 AM in response to Hedgehog64

The personal hotspot functionality only works intermittently, and even when it does, it blocks VPN (not on the phone, but on the connected/tethered device). Some kind of **** went into this update, which is likely why Apple was secretive about the changes it made.


Honestly, I've had it. I had to postpone a business lunch because of it. I am looking at Android phones now.

Jan 17, 2024 8:09 AM in response to G4B0_85

G4B0_85 wrote:

Appel should have a way to go back to a previous iOS, I couldn't go back and I can't find an easy way to do it, it's frustrating since I lost some apps with my PC that they don't detect now and I need them to work. I want to go back to the previous version but I don't know how from my cell phone or in an easy way to restore a version 16.

You can’t go back, because previous versions have vulnerabilities that were fixed in the update. But you CAN fix whatever problems you have after the update with a little troubleshooting. Keep in mind that hundreds of millions of users do not have problems, so if you do it is unlikely that it was caused by the update.

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 17, 2024 8:19 PM in response to Hedgehog64

I found a sort of fix. It works, but it’s very diff from what I’ve been doing that worked fine.

I turned on WiFi even tho there was nothing to connect to, leave Bluetooth OFF, if you need 5g turn it on. It works! I was able to get everything working and could connect using my data and everything again! This is the first time since end of November that I’ve found a fix. I kept thinking “I’ll try it but leave Bluetooth off but plug in to usb in the car”. It worked

Jan 18, 2024 8:04 AM in response to Hedgehog64

I literally had to go to AT&T to update to a newer phone, due to this situation! WAS NOT able to connect to my carrier, regardless of eSIM OR reset settings! It would work for 45 mins and back to no service! If I did not have a sick Parent, I would have stayed for the update bug fix! Someone should do something QUICKLY! Ppl are losing patience and money, with this issue! @apple! FIX IT

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

iPhone not working after 17.2.1 update

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