Can I update my iPhone 6s?
How to update my iPhone 6
[Re-Titled by Moderator]
iPhone 6s
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The iPhone 6 cannot be updated to an iOS higher than iOS 12.5.5. It does not have the hardware. To be sure you cannot update, make sure your battery is 50% charged, then go to Settings>General>Software update. If it states it is up to date then you cannot update.