How to do updates in an iPhone
Please can I update my iPhone
iPhone 6, iOS 12
If you're trying to update it to 13 or above, no. Otherwise, use a computer or the Software Update function in Settings.
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2 replies
See the Apple Support article(s) below.
iOS 14 and iPadOS 14 Compatible Devices
iOS 13 and iPadOS are compatible with these devices - Apple Support.
How to do updates in an iPhone