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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

RobLuka

Level 1

12 points

Posted on Aug 30, 2023 9:59 PM

Definitely not the fix, been in this situation for over 2 weeks and no one knows what to do. Though it’s been noted it does show an ICCID on the watch…

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Apple Watch Ultra - suddenly says No SIM - No Connection

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