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Level 1

4 points

iPhone problems

My iPhone 12 Pro Max is telling I have cellular updated failed when I try and put my SIM card, what do I do? It is updated to the 15.1 IOS.

iPhone 12 Pro Max

Posted on Nov 22, 2021 7:50 PM

Top-ranking reply

Level 10

209,217 points

Posted on Nov 23, 2021 1:43 AM

Kelseyy24 wrote:

My iPhone 12 Pro Max is telling I have cellular updated failed when I try and put my SIM card,

See this Apple articles below::

Manually update your carrier settings on your iPhone or iPad

If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad

Set up cellular service on iPhone

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