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  1. I did all the solutions above but none worked. Turns out that although they keyboard was working, it was not actually connected. I reconnected keyboard and touch ID started working again.

  2. Touch ID has disappeared from my System Preferences; How do I retrieve?

    I am using a 24 inch Mac with the Apple processor

  3. Thanks, all my fingerprints disappeared and I couldn’t add new ones cause “Fingerprint limit has been reached”.

    Step number four solved it (intel) for me. Had to re-add all the fingerprints after.

  4. I have done everything here multiple times and still will not unlock macbook after it goes to sleep.
    I am tired of resetting scm, and redoing my prints.
    Please find a solution for this.
    My Macbook is a 2019 version,.

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