Apple Watch Ultra - suddenly says No SIM - No Connection

Have you set up your Apple Watch and cellular was working, then it stopped? It seems like this problem is happening for many people. I tried googling it and ended up here with no answers. I just solved it! Here's how:

I turned off my watch and turned it back on.
I updated my iOS software
I opened the Watch app on my iphone, went to "Cellular" and clicked on the "i" under my cellular plan. I removed the plan
I added a new plan (it was the same as the original plan)

Problem solved!

Apple Watch Ultra

Posted on Jun 22, 2023 2:03 PM

Top-ranking reply

Slak07

Level 1

18 points

Posted on May 17, 2024 3:45 AM

That was the first thing we tried, probably 30 times.

This did not work for us. Unfortunately after hours on with Apple, they deemed the watch in good working order and referred us to our carrier, Verizon. After hours on with them they finally had to deactivate the watch fully from the account and push out a new SIM profile. It resolved the issue but now we continue to have intermittent issues with not being able to accept calls/delayed texts on the watch. It’s very frustrating.

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Apple Watch Ultra - suddenly says No SIM - No Connection

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