My iPhone can’t update to ios14

Is your device compatible to update to the new version? See the article(s) below. 

iOS 14 and iPadOS 14 Compatible Devices.  *

If it is compatible with IOS 14, see the articles below.

Update your iOS device.  -

Get help with over-the-air iOS updates  -

Update – Can’t or can’t restore   -

Have you tried using iTunes on a computer or Finder if running Catalina or later to do the update?

 Update software on iOS devices in iTunes on Mac. -

If you see an error when you update or restore your iPhone, iPad, or iPod    *

Updating iOS: common issues and solutions.  -