Cellular data not working after iOS 17.3 update on iPhone 13 mini

Here's what the support rep had me do. This first part applies for an iPhone with any carrier:

Go to Settings > General > Transfer or Reset iPhone > Reset, tap Reset Network Settings (please note this will removed any saved WiFi Passwords).

Once done, you should follow the steps below to remove any APNs and VPNs.

Go to Settings > General > VPN and device management > Delete any APN profile ( If you see a profile there )

Also Settings > VPN > Delete any existing VPN Profile

And Settings > Safari > Clear Cache/Data

The next step depends on your carrier, and you'll have to call their support for exact instructions. I'm on a carrier which uses the Verizon network, and these were the final steps for my phone:

After this, please follow the steps below to re-add the APNs.

Please open apn.droam.com in the Safari browser on your device. This website will help you set up APN settings for your device.

Select "Manually" from the options presented.

In the APN Name, enter "vzwinternet".

Touch the bottom-most empty box (which is actually the "Install Profile" button but you may not be able to see the label) to download the APN Profile.

Allow download for the profile.

After the profile is downloaded, go to Settings > General > VPN and Device Management > Select the downloaded profile > Install

Turn the airplane mode On for 30 seconds, then disable airplane mode.

Turn off WiFi and test the Cellular Data connection.

UPDATE!! Here’s the fix:

First you’ll need another SIM card ; (I had a few old phones it was an old LG phone so I guess it doesn’t matter )

2nd turn off wifi (and turn off auto join) and turn off Bluetooth

keep cellular data on and reset network

remove SIM card and insert old SIM card

phone will try to connect but can’t and it will go into SOS

remove old sim and put actual sim in

toggle air plane mode off and wait 30 seconds turn on

it will still be in sos;

restart the phone

FIXED!! From what I gather iOS 17.3 possibly screws with the network settings and it takes a sim swap and triggering sos to completely reset it.

POSTED USING MOBILE DATA*

I have T-Mobile iPhone 15 pro+ running IOS 17.4. Mine did this too.

Go to Settings > General > Transfer or Reset iPhone > Reset, tap Reset Network Settings (please note this will removed any saved WiFi Passwords).

Once done, you should follow the steps below to remove any VPNs.

Also Settings > VPN > Delete any existing VPN Profile

Then Settings > General>Shut Down

I had google 1 VPN and another VPN in the list.

Hope this helps someone else.

Lost cellular data yesterday after updating my iPhone 13 Pro to iOS17. Voice and text still working.

I messaged my carrier (US Mobile) this morning, and they had me clear the network settings, and also delete VPN and APN entries, then sent me a link to download a new APN.

This restored my cellular data.

Update : I reset my network settings , removed my sim and reinserted it, toggle my cellular & airplane mode on/off … it works now! As soon as i started to make a call to my cellphone provider the call failed and the LTE went to SOS and back to LTE and everything is working now. Sad I had to do all of that but it’s working so good luck to anyone still having the issue.

Hi, I'm a bit late here, but I was having the same issue, had reset my network settings multiple times, contacted the carrier, done everything that was recommended. And then I saw a post about the VPN settings, which ended up fixing mine. I had a VPN from an old SIM card that I used which was messing with my network settings. Once I deleted that it worked fine. Steps below:

Settings > VPN > Delete any existing VPN Profile

Then restart the device. Hope this helps.

I was able to fix my phone by factory resetting it. Now I know that may not solve everyone's issue, and it's a little time consuming because you have to backup your phone and then wait for everything to redownload, but I kept my eSIM and now my phone works as a phone again!

So if you're in a bind, you might try factory resetting it and seeing if that will fix it!

Yes - but only after I replaced the ASN per the support rep's instructions.

Just doing the network reset had no effect, as it appears that the iOS update screwed up the ASN, and the only fix is to replace it. Call your provider for instruction on how to do this on their cellular network.

Cellular data is distinctly different from SMS, and requires different account options to be enabled.

That's why you need to contact your cellular carrier.

I had the same problem with my SE ver 2 and my wife and kids SE ver3 when 17.2.1 hit. Thenn 17.3 didn't fix it. I called Straight talk and they said to reset network. I did. Nothing. I did a complete wipe and re-install. Nothing. When I talked to Straight Talk they said they found an issue with mine and it was fixed. Calling again.

Cellular data is a cellular carrier feature; contact them.

There is no way to "downgrade" to a previous release of iOS.

Contact your cellular carrier.

I have straight talk. So I texted 611611. They said they found the issue and told me to restart my phone. It worked. They never specified what had happened. It’s fixed now.

Three calls to Straight Talk. They reset three of our four SE phones. Had to be in a better coverage area I guess for it to work. Never said what it was