How do I install an update on iPhone 6s?
How do I install the update?
[Re-Titled by Moderator]
iPhone 6s Plus, iOS 11
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1979rlw wrote:
How do I install the update?
iPhone 6s can get as far as iOS 15, and no further.
Here is how to: Update iOS on iPhone - Apple Support
Remove any beta profile, remove any add-on VPN client app, free up enough storage for the upgrade, force restart, connect to Wi-Fi and not hotspot, and try again.
If that fails, use a computer to upgrade your iPhone. (That’s linked in the above update article.)
Also see: If your iPhone or iPad won't update - Apple Support