Update to the iOS 12.5.6 immediately (Picture: Unsplash) If you’re using an iPhone 5s, iPhone 6 or iPhone 6 Plus, there’s a crucial software update you need to install immediately.

If you're on the fence, here's one of the best reasons to install iOS 12.5.6 right away. iOS 12.5.6 has a vital security patch on board and it will protect your device(s) from harm.

The iOS 12.5.6 update is also available for the iPhone 6 Plus, iPad Air, iPad Mini 2 and 3, and the sixth-generation iPod Touch. Security warnings like this one are usually nothing to worry about ...

If you have a faulty iPhone 6 Plus, reach out to Apple Support, make a Genius Bar appointment, or visit an Authorized Service Provider -- you could walk out with a free upgrade to the iPhone 6S Plus.

If you see the download and install option for iOS 16.6 instead, hit the Upgrade to iOS 17 button at the bottom of the page and then hit Download and Install for iOS 17. Enter your passcode to ...