iPhone 12 Pro - FirstNet Update Failing

App & System Services Core OS
killabit OP
Created Nov ’21
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I have a Firstnet iPhone 12 Pro with iOS 14.6 and I am manually trying to update through iTunes, I have tried 14.7, 14.7.1, 14.8, 14.8.1 all of them fail as unknown, the 14.8 from the developers download reports firmware failure and the OTA update as usual reports No Internet connection. I do not want 15 on this phone.

What shall I try next?

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App Store Connect Engineer OP
Apple
Nov ’21

Hi there,

You might have better luck asking this question over in Apple Support Communities run by Apple Support.

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