Does Touch ID learn over time?

Discussion in 'iPhone' started by kcvpr, Oct 30, 2014.

  1. kcvpr macrumors newbie

    Joined:
    Sep 15, 2014
    #1
    I had my iPhone 6+ replaced yesterday for a cosmetic dent in the metal casing. Since then I have noticed that Touch ID isn't performing as quickly as with the last device.

    Does Touch ID 'learn' your fingerprint over time. Or did I just not set up the fingerprints as well as I did with the last device?
     
  2. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #3
    could be in how you set it up you really have to get the print in all different angles because you can be holding the device differently everytime
     
  3. brand macrumors 601

    brand

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    #4
    I've already taught mine how to play dead and roll over. It didn't like fetch so much.
     
  4. Steve686 macrumors 68030

    Steve686

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    #5
    I don't get what you mean learn over time.

    Whatever fingerprints are stored during setup better be the only ones allowed or else this could be a security loophole to reimage a user's fingerprint?
     
  5. WilliamG macrumors G3

    Joined:
    Mar 29, 2008
    Location:
    Seattle
    #6
    I don't believe it. Despite what Apple may say. It either works or it doesn't. Winter is tougher, since fingers get cracks, dry out etc.
     
  6. nateo200 macrumors 68030

    nateo200

    Joined:
    Feb 4, 2009
    Location:
    Northern District NY
    #7
    Put your primary prints in 2 or even 3 times in seperate "fingers" and you'll see the phone unlock much faster...but to answer your question it does seam to "learn" over time....first week my Touch ID was slower than just swiping to unlock like I'm use to but now its almost too fast! Sometimes I just want to check the time and not unlock!
     
  7. bjb.butler macrumors 6502a

    bjb.butler

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    Southern California
    #8
    Source?
     
  8. ElectronGuru macrumors 65816

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    Sep 5, 2013
    Location:
    Oregon, USA
    #9

    A finger may not change, but each time you press is a little different angle and each time you press is a little different pressure. If Apple required 100% match, you would either have to give dozens upon dozens of samples or most attempts would have to fail. So to improve success with only 2 or 3 samples, there has to be a % variation, a margin of error. Within that margin, they could map more variations, increasing the library of correct answers, and even boosting the % match requirement.
     
  9. JohnEx2007 macrumors newbie

    Joined:
    Jul 21, 2010
    #10
    I don't think it learns. How you set up your fingerprint has a lot of impacts on how it behaves later on; make sure you took snapshot of all angles of your finger when doing that.
     
  10. BvizioN macrumors 601

    BvizioN

    Joined:
    Mar 16, 2012
    Location:
    Manchester, UK
    #11
    Maybe you are right, however on the first few days when I registered my prints I have had few failures, but now I can't remember the last failure... maybe it occurs when am walking on the rain and fingers are somehow wet. That may be related to update improvements too, I don't know.
     
  11. leventozler macrumors 6502

    Joined:
    Feb 18, 2009
    #12
    Just tested it again. Keep locking and unlocking with your finger and move it a couple of millimeters each time. Or you can do it in 'touch id & password' menu in settings.

    Touch ID adds the 'new' region around your 'known' print. Keep unlocking and you will be able to unlock with a region you haven't initialized with.
     
  12. Phil A. Moderator

    Phil A.

    Staff Member

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    Apr 2, 2006
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    Shropshire, UK
    #14
    http://support.apple.com/kb/HT5949?viewlocale=en_US&locale=en_US

     
  13. The Doctor11 macrumors 603

    The Doctor11

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    New York
    #15
    That takes some serious skill...
     
  14. Appl3FTW macrumors 603

    Appl3FTW

    Joined:
    Nov 15, 2012
    #16
    bwuahahahaha!!!! I lulzd at this

    ----------

    as far as ur original question is concerned OP... I don't think so, I believe it's how you position your fingers and cover as many angles as possible.

    here's my tip: when you setup the touchID, try to touch it as many angles as possible, and make sure you touch it the way you would unlock it. i.e. if you're heavy handed on the right thumb, press it that way.
     
  15. Septembersrain Contributor

    Septembersrain

    Joined:
    Dec 14, 2013
    Location:
    Texas
    #17

    Oh geez.

    On a serious note, if you're having issues register the same finger more than once.
     
  16. bjb.butler macrumors 6502a

    bjb.butler

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    Aug 18, 2008
    Location:
    Southern California
    #18
  17. deeddawg macrumors 604

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    US
    #19
    This is an Internet. Why would facts have anything to do with people's opinions? :)
     

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