iPhone not working after 17.2.1 update

Hi, check whether date and time in the application Calendar is correct.

I had the issue that WI FI wasn't working, Apple ID, VPN..

Turns out, date and time wasn't correct, after making it right, all was good.

Can one downgrade or remove Apple’s upgrades? I have a new 14. I can’t display the day and date in upper right corner on my lock and home screens.

Also, my phone doesn’t sound alerts for text messages if they are open (running in the background) even tho I swiped up to close them. I am beginning to hate iPhones

You cannot downgrade iOS safely. There are ways to do so using unauthorized software but use at your own risk.

Are you wearing an Apple Watch when you are looking for these alerts?

If not then attempt to reset all settings General -> Transfer Reset -> Reset All Settings

If that doesn't solve the issue perform a hard reset (Tap Volume up Button Tap Volume down button then hold the power button until device goes dark

I will never buy an Apple product again.

iPhone 15 Plus here, right after installing the IOS update 17.2.1 my hotspot stopped working immediately. Apple asked me to return the phone for service / repair and then replaced the handset like for like and the replacement handset had exactly the same hotspot issue!

Spent hours on the phone through Christmas with Apple technical support and my mobile carrier too just to isolate whether the problem was hardware, software or carrier/SIM related and am now considering returning the phone for a refund.

I need the Hotspot functionality for my job and now I'm having to carry a second Android phone with me to work.

Yesterday to test my theory on the IOS update being the problem I borrowed my father's iPhone 12 Pro Max which was still running IOS 17.1.2 - hotspot functionality absolutely fine. I installed the recent 17.2.1 update and it immediately rendered the hotspot useless.

How can they blatantly ruin so many people's phones like this?

My issue is with hotspot not allowing my Galaxy Watch 4 connect to it. Before iOS 17.2, there were no issues. Watch shows "IP configuration failure" when I try to connect to iPhone's hotspot. Apple stopped signing 17.1.2 firmware the same day when I was trying to go back. :( This is on my iPhone 12 Mini. I reset the device twice and set it up "as new" phone, nothing helped. It is interesting that other devices such as Pixel 8 and Galaxy S23 are able to connect to my iPhone 12 mini but not my watch.

I updated my phone last night and now the screen isn’t working.. The Lock Screen picture is present, but I cannot type anything or swipe, etc..

I tried to power off but cannot even swipe when prompted. NOTHING works.

Anyone else have this happen or have a solution?

ITS ACTUALLY A VPN ISSUE FOR ME. I had Windscribe installed I used it before updating, after updating to 17.2.1 my network stopped working even Wi-Fi, had to goto Settings > General > VPN & Device Management then I delete the Windscribe VPN, and my WIFI connected immediately! I’m using iPhone 14 Pro Max

You're welcome. I'm hoping that the many hours I've wasted on this, and the final solution from Apple which only came after a lot of pushback, are of use to you and the thousands of others who seem to be suffering out there.

After I updated my Phone eleven to 17.2.1 my phone won't sync to my IMAC it gets stuck on 3/5 sync even after having the phone connected over two hours! And even when I try to cancel the sync it still gets frozen trying to cancel. Any suggestions?

See the long post I put up today with my story. Apple couldn't come up with a fix, so after several weeks of no phone, many hours of diagnostics with Apple, and some back and forth trying to blame my phone (even though earlier diagnostics said the phone was OK), they gave me a new phone (12 Pro). I had previously tried several new esims from T-Mobile which worked for a while, but all ended up not connecting after a few hours up to a couple of days. Nobody was able to explain what the problem was, or how the update caused it, why wiping the phone clean didn't fix it, or why getting a new phone did. Good luck finding someone at Apple Technical Support or Customer Support who can help you. Going to an Apple Store was a waste of time for me - they wanted me to pay for a repair or new phone.

Hi Guys,

If the "no sim" problem started just after IOS 17.2.1 installed it is probably a hidden error during installation. To solve it you have to enter your iPhone into SAFE MODE and then connect to a MacBook or PC with ITUNES installed. Then automatically download and install the newest (i did 17.2.1 again) IOS. Then restart and voila !

Sorry to hear of all the problems folks are having with iOS 17.2.1.

I am still using iOS 16.7.2 with NO issues. I will update (maybe) to 17.3.x when, and if, it becomes available. Not that I don't trust Apple but, well, I've been an Apple (and Windows) user long enough to know to always stay an upgrade or two behind.

Best

My 13mini was updated to 17.2.1 last night and my incoming calls were going straight to voicemail. I rebooted the phone and it is working now. Keep in mind that the 13 mini has a hard SIM card. So if you try rebooting and it doesn’t work, it may be e-sim related.

Since the update my phone and my wife's phones have blended our texts. We are both getting the others texts to and from each other. each one shows up double. It's like we have the same phone number.

Funny, I was having freezing problems Apple support pointed out that I had not updated to 14.2.1 and that update fixed a lot of these issues. I updated and now I am having problems with my phone saying it can’t connect to the internet. I doesn’t matter if it’s on 5g or WiFi. When I called Apple support I told him when researching this topic a lot of people were having this problem, the agent told me “this was the first he has heard of this problem” OMG! That I need to reset my network settings and if it’s not that “it must be my carrier”🤦🏻‍♀️ it’s not my carrier! I wish Apple would just take responsibility. But the problem is intermittent so I am never able to duplicate it when they ask me to. 😭