My iPhone 6s is on iOS 13 I want too update on 15 please help
want To update my iPhone 6s please help me
iPhone 6s, iOS 13
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You can update your iPhone by going to Settings > General > Software Update, and downloading and installing the latest version, which is iOS 15.4. You can also update your phone with Finder on Mac or iTunes on Windows.
Update your iPhone, iPad, or iPod touch - Apple Support