iPhone 12 Pro Max works on LTE, but not on 5G

Hi, I have a iPhone 12 Pro Max. When my lte is one it works fine & fast no problems.

when 5g randomly comes on my phone stops working, from my cell. I am remote with no wifi available.

If I sit in a certain spot, most of the day and night, never changes to 5G. I think it’s ghosts.

So, how do I turn off my 5G? Or why does this happen? Thank you in advance.



[Re-Titled by Moderator]

Original Title: I’m remote- no WiFi

iPhone 12 Pro Max, iOS 16

Posted on Jun 22, 2025 4:48 PM

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Question marked as Top-ranking reply

Posted on Jun 24, 2025 3:28 AM

Try going to Settings > Cellular > Cellular Data Options > Voice & Data. On my phone, that leads to a three choice menu: 5G Auto, 5G On, LTE.


I don’t know if it will on your phone because I believe the carrier gets to control these options.

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iPhone 12 Pro Max works on LTE, but not on 5G

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