iPhone Cellular Data Not Working? Here’s The Real Fix!

Cellular Data is not working on your iPhone and you aren’t sure why. Cellular Data allows you to surf the web, send iMessages, and much more even when your iPhone isn’t connected to Wi-Fi. In this article, I’ll show you what to do when iPhone Cellular Data is not working so you can fix the problem for good!

Turn Off Airplane Mode

First, let’s make sure that Airplane mode is turned off. When Airplane Mode is turned on, Cellular Data is automatically turned off.

To turn off Airplane Mode, open the Settings app and turn off the switch next to Airplane Mode. You’ll know Airplane Mode is off when the switch is white and positioned to the left.

make sure the switch next to airplane mode is off

You can also turn off Airplane Mode by opening Control Center and tapping the Airplane Mode button. You’ll know Airplane Mode is off when the button is gray and white, not orange and white.

airplane mode control center off vs on

Turn On Cellular Data

Now that we’re sure Airplane Mode is off, let’s make sure cellular data is on. Go to Settings -> Cellular and turn on the switch next to Cellular Data at the top of screen. You’ll know Cellular Data in on when the switch is green.

make sure cellular data switch is turned on

If Cellular Data is already on, try toggling the switch off and back on. This will give Cellular Data a fresh start, just in case it’s not working because of a minor software glitch.

Restart Your iPhone

If iPhone Cellular Data is not working even though it’s turned on in the Settings app, try restarting your iPhone. It’s possible your iPhone’s software or a specific app has crashed, preventing Cellular Data from working.

To turn off your iPhone 8 or earlier, press and hold the power button until “slide to power off” appears near the top of the display. If you have an iPhone X, press and hold either volume button and the side button until “slide to power off” appears.

Then, slide the red and white power icon from left to right to turn off your iPhone. Wait a few seconds, then press and hold the power button (iPhone 8 or earlier) or the side button (iPhone X) until the Apple logo flashes onto the center of the screen.

slide to power off power icon on iphone

Check For A Carrier Settings Update

Our next step when iPhone Cellular Data is not working is to check for a carrier settings update. Apple and your wireless carrier release updates in order to help your iPhone connect to your wireless carrier’s network more efficiently.

Usually when a carrier settings update is available, you’ll receive a pop-up on your iPhone that says “Carrier Settings Update”. Whenever this pop-up appears on your iPhone, always tap Update.

Carrier Settings Update On iPhone

You can also manually check for a carrier settings update by going to Settings -> General -> About. If a carrier settings update is available, a pop-up will appear on your display within 15 seconds. If no pop-up appears, there probably isn’t a carrier settings update available, so let’s move onto the next step.

Eject and Reinsert Your SIM Card

Your iPhone’s SIM card is the piece of technology that stores your phone number, allows you to connect to your wireless carrier’s network, and much more. When iPhone Cellular Data is not working, sometimes removing and reinserting your SIM card can give it a fresh start and second chance to connect to your wireless carrier’s network correctly.

Removing a SIM card can be a bit tricky because the SIM card tray on the side of your iPhone is so small. Check out our guide on ejecting SIM cards to make sure you do it correctly!

Reset Network Settings

If Cellular Data still isn’t working on your iPhone after you’ve reinserted your SIM card, it’s time to troubleshoot for a more significant software issue. When you reset network settings, all of your Wi-Fi, Bluetooth, Cellular, and VPN settings are restored to factory defaults. After resetting the network settings, it’ll be like you’re connecting your iPhone to your carrier’s cellular network for the very first time.

To reset network settings, go to Settings -> General -> Reset -> Reset Network Settings. Then, tap Reset Network Settings when the confirmation pop-up appears.

how to reset the network settings on iphone

After tapping reset network settings, your iPhone will restart. When your iPhone turns back on, the network settings have been reset!

DFU Restore Your iPhone

If resetting network settings didn’t fix your iPhone’s Cellular Data issue, our final software troubleshooting step is to perform a DFU restore. A DFU restore will erase, then reload all of the code on your iPhone and reset everything to factory defaults. Before performing a DFU restore, we recommend saving a backup of the data on your iPhone so you don’t lose any important information.

Contact Your Wireless Carrier

If you’ve made it this far and iPhone Cellular Data is not working, it’s time to contact your wireless carrier. It’s possible that cellular data isn’t working because your wireless carrier is doing maintenance on their cell towers.

Below are the phone numbers of some of the major US wireless carriers:

  • AT&T: 1-(800)-331-0500
  • Sprint: 1-(888)-211-4727
  • T-Mobile: 1-(877)-746-0909
  • Verizon: 1-(800)-922-0204

If there’s a number you’d like us to add to this list, leave a comment down below!

Cellular Data: Working Again!

Cellular Data is working again and you can continue to browse the web and send texts using wireless data! Next time iPhone Cellular Data is not working, you’ll know exactly where to come for the solution. Thanks for reading!

All the best,
David L.

About Author

I'm here to help you with your iPhone!

Subscribe
Notify of
27 Comments
Inline Feedbacks
View all comments
shannon
1 month ago

I turned off a hidden setting and my apps will only work on Wifi. I selected a link that didn’t have a drop down arrow so I am not able to relocate where I told the phone to only use Wifi for apps. Do you have any suggestions. It not in the normal locations I have already reset data in all the known locations.

Edwin
1 month ago

Thanks for the sim card tip. My I Phone 12 had the hotspot working but nothing working on the phone itself. Removing the sim worked.

Lea
2 months ago

thank you for this!! 🙂

Myoshea
5 months ago

I have boost mobile and my internet is not working what should I do to get it working?

AirMojo
5 months ago

Hello… I had the “No connection available” issue when I was away from my home wifi… the cellular data seemed to work fine for phone call, but not for internet related apps… I thought the problem may have been caused by a recent “carrier settings update”… I restored my iPhone 7 using my backup on my PC… still didn’t work… I did a factory reset, and restored from the backup… still didn’t work (I have to rurn my wifi off to do the testing). Sadly, I found out that iTunes does not keep multiple backups… I could only find one,… Read more »

rosana
5 months ago

This was wonderful. My data is back and running! Thank you!!!!

Shaninay
6 months ago

This was great but I have tried all of it but still don’t work, please help me fix this.

Tjake
6 months ago
Reply to  Shaninay

Get your sim card relinked to your iphone or have company give you a new one and link / activate it with your phone. The original sim card would be better

Wayne
6 months ago

This was a great information site it really works Thank You

Wayne
6 months ago

This was a great information site it really works Thank You

Elrick
6 months ago

I tried all these steps but still not working, I can’t call the numbers because I am in Africa

Robyn
6 months ago

thanks so very very much! resetting my network settings worked a treat. PHEW! Thanks for being here with the solution 🙂

vicki
1 month ago
Reply to  Robyn

did resetting your network settings create any problems with your data service? did you have to call them to set up another payement or could you just reconnect by yourself?

karson
6 months ago

my imessage works and ft but nothing else

Moiz
6 months ago

My cellular data and SIM card not showing

Jaryn
6 months ago

My data recently has been a bit weird where I turn on my data for any app, and as soon as I exit settings, it automatically turns it off again. It has been doing this for the past 3 days. I’ve tried everything in here as well as clearing up space, and dozens of resets. Nothing seems to work 🙁

james
8 months ago

ive followed all abouve steps and still no data

Mary Smitha
8 months ago

Hi Im using cellular data to use zoom. Recently I noticed that when I access Zoom App, it stays as connecting and sits there. I tried reset network settings, reinstalled the app but no luck. Any suggestions you can provide me here to fix this issue?

Bjarne
9 months ago

Helpful and informative article. But I would have placed “Contact Your Cellular Carrier” b e f o r e “Reset Network Settings”.

Nancy Arthur
10 months ago

I can get the cellular data to work by turning the phone off and on but I have to do it each time I leave WiFi. All the mentioned settings are correct.

Fredy
6 months ago
Reply to  Nancy Arthur

Nancy, I have had the same issue for over 2 years…if you found a solution, please let me know.
Thanks

Vanessa
10 months ago

Went through all of these steps, my carrier has no idea what happened and have exhausted all steps. Anyone else experiencing this?

AMY
8 months ago
Reply to  Vanessa

Same problem here tried new sim card nothing what did you do?

iPhoneUser
1 year ago

Make sure the phone date is correct (in Settings under Time & Date), since data from Wifi or mobile network will not work on iPhone if the date is past

Wanda
1 year ago

adding the number for xifnity mobile would be cool! 1-888-936-4968

TikTok Not Working On iPhone? Here's The Fix! | Payette Forward
2 years ago

[…] more information, check out our other articles if cellular data isn’t working or if your iPhone won’t connect to […]

dan
8 months ago

if all of the above fixes don’t work on iphone 6 what is usually the problem. I’am sure apple has had to fix atleast 1