palkoc
Level 1 (4 points)
Peripherals

Q: Two fingerprints enrolled at once - a bug or a feature?

Hello

I was able to enroll two fingerprints at once - during the first finger enrollment process. When enrolling a fingerprint, simply swap evenly 2 fingers (thumb, index...). At the end of the process, the TouchID will recognize both fingers, assigned however to the only "Finger 1". In reality, the unique fingerprint is a mixture of the two...

 

iPhone6 plus, iOS 8.1.2

Is that a bug or a feature?

 

Pavol

iPhone 6 Plus, iOS 8.1.2

Posted on Jan 26, 2015 9:31 AM

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palkoc

Q: Two fingerprints enrolled at once - a bug or a feature?

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  • Helpful answers

  • by RazoR65,

    RazoR65 RazoR65 Jan 26, 2015 9:36 AM in response to palkoc
    Level 1 (25 points)
    Jan 26, 2015 9:36 AM in response to palkoc

    The Touch ID remembers unique parts of your fingerprint. If you trick the system by swapping fingers, it will remember some of the unique parts from all the fingers used, so you probably can use both fingers.

    The fact is that it is not that precise as when only one finger is used.

    You may experience some cases that he will not recognize your fingerprint on the first try and you have to retry until it unlocks.

     

    Charly

  • by Mike1868,

    Mike1868 Mike1868 Jan 26, 2015 9:39 AM in response to palkoc
    Level 1 (0 points)
    Jan 26, 2015 9:39 AM in response to palkoc

    The best way to enrol two fingers is to do it separately.


    You can enrol up to 5 fingerprints i believe.


    The reason you should do them separately is because it would be more accurate than a mix.


    Though i'd say it is more of a bug and it should probably be rejecting both fingers in theory.

  • by Chris CA,

    Chris CA Chris CA Jan 26, 2015 9:44 AM in response to palkoc
    Level 9 (79,677 points)
    iTunes
    Jan 26, 2015 9:44 AM in response to palkoc

    TouchID looks for features that are there.

    It doesn't look for features that are not there because there can be features that do not show up when scanning (different part of the print). That is why you have to do it multiple times. It looks at different parts of yrou print.

  • by wegras,

    wegras wegras Jan 26, 2015 10:08 AM in response to palkoc
    Level 6 (15,194 points)
    Wireless
    Jan 26, 2015 10:08 AM in response to palkoc

    Use Touch ID on iPhone and iPad - Apple Support