- Check for Software Updates: Go to "Settings" on your iPhone 6 Plus.
- General: Scroll down and tap on "General."
- Software Update: Tap on "Software Update." Your device will check if there are any available updates, but if you're already on iOS 12.5, you likely won't see any newer updates.
It's important to note that keeping your device updated to the latest available version is a good practice for security and compatibility reasons. Since your iPhone 6 Plus can't be updated beyond iOS 12.5, consider using the device for tasks that don't require the latest software features, or you might consider upgrading to a newer iPhone model if you want access to the latest iOS updates and features.