How can I update to iOS14
How can I update to iOS14
iPhone 6 Plus, iOS 12
How can I update to iOS14
iPhone 6 Plus, iOS 12
An iPhone 6 Plus cannot update past iOS 12.5.4.
An iPhone 6 Plus cannot update past iOS 12.5.4.
You can't, the iPhone 6 series cannot run iOS 13 or higher as it does not have sufficient RAM and you cannot add it. And the vulnerability you have heard about only impacts iOS 13 and later.
How can I update to iOS14