We need the iOS 18 on iPhone 7 Plus

An iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, or iPhone SE 1 isn't capable of 16 or above; they require an A11 or better CPU.

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mili146 wrote:

Even chat gpt needs the new ios on the old iPhones 😕

Then you need a new(er) iPhone for the reasons Niel mentioned. The hardware on your iPhone 7 is not capable of updating.