Apple watch series 7 will not connect to cellular

We are here to help get your Apple watch connected @Bytecloud.

You will need to setup NumberSync for your Apple device.

1. On your iPhone, go to Settings and then Phone.
2. Select Wi-Fi Calling, toggle it to On, and follow the prompts.
3. Tap the back arrow to return to Phone and select Calls on Other Devices.
4. If Allow Calls on Other Devices is off, toggle it On. The compatible devices you signed in to iCloud with the same Apple ID will be listed under Allow Calls On.
5. Select Add Wi-Fi Calling for Other Devices, and follow along until you reach the NumberSync prompt.
6. Check your secondary Apple device for a pop-up with a 6-digit code to enable Wi-Fi Calling. Don’t see a pop-up? Open your other device’s FaceTime settings and turn on Calls from Phone.
7. Enter the 6-digit code into the pop-up on your iPhone and tap Allow.
8. Select Ok when your secondary Apple device shows a pop-up about emergency calls. Complete any requested emergency address info.

If you are still unable to sync your device, we suggest running your device through our Troubleshooting Tool. This will provide you with our top resolutions.

1. Scroll down to Fix and Issue.
2. Select your device type.
3. Under Services select Device Pairing (NumberSync)

Let us know if this helps!

Samantha, AT&T Community Specialist

I have the same issue.  Trying to setup cellular from my Watch App on the iphone my apple watch series 7 is paired with and when I enter the AT&T login & password it just say "Loading, this can take 30 seconds.. type message and it never goes past that screen".  Have been trying since I bought the watch for Christmas every few days or when i remember.

Hello @Jeast,

We can definitely assist you with setting up your Apple Watch with cellular!

Have you followed the steps above to set up NumberSync on your Apple Watch?

If not, please go ahead and give that a try, then let us know if you run into any issues.

Hope this helps!

Sean, AT&T Community Specialist

I tried following the steps listed above but when I go back to the first Phone menu, there's no option for "Calls on Other Devices." Every time I try to set up cellular on my Apple Watch SE, I enter my login info, it says this may take up to 30 seconds, and then it goes to a blank screen with the AT&T logo in the top right corner and never loads anything.