update your operating system to iOS 14.4
I received notice of this on my PC but I see nothing of it on my cell phone.
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Go to Settings > General > About
What does it say for iPhone Model?
You need an iPhone 6s/6s Plus or newer in order to run iOS 14
Update your iPhone, iPad, or iPod touch - Apple Support
issues?
Updating iOS: common issues and solutions - Apple Community
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