How to open Keychain

"How to open Keychain"

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Keychain on iPhone 11 Pro:

Manage Your Passwords in the Passwords App.

You need at least iOS18. You model (iPhone 11 Pro) IS compatible with iOS18. You should upgrade your iOS to iOS26 release, with is iOS26.2, as of this reply.

To Find Out which is installed: Go to: Settings > General > About > iOS Version

First, Ensure "Sync this iPhone" is on in iCloud Settings:

1. Go to: Settings
2. Tap: [your name] (top item)
3. Tap: iCloud
4. Tap: Passwords
5. Toggle On: Sync this iPhone

Then, Use the Passwords App:

1. Go to: Settings
2. Tap: Apps
3. Tap: Passwords
4. Tap: Open Passwords
5. Proceed from there as necessary