Can fingerprints shift?

Discussion in 'iPhone' started by Binarymix, Jan 24, 2014.

  1. Binarymix macrumors 6502a

    Joined:
    Nov 1, 2007
    #1
    Hey,

    I set up TouchID when I received my phone in november.

    It seems that in order to unlock my iPhone from week to week I have to continually start moving my thumb further up to have it recognized.

    Can your prints shift slightly over a period of time?

    The consensus is no, but what other explanation is there?

    BTW I added another finger using the tip of my thumb, the same as before and boom, it recognizes it right away.
     
  2. gaanee macrumors 6502a

    Joined:
    Dec 8, 2011
    #2
    Fingerprint patterns which the sensor detects changes due to weather especially in winter, also moist hands seem to affect that pattern. I had to do it a few times to get it working.
     
  3. cyberbro macrumors member

    cyberbro

    Joined:
    Sep 27, 2013
  4. T'hain Esh Kelch macrumors 601

    T'hain Esh Kelch

    Joined:
    Aug 5, 2001
    Location:
    Denmark
    #4
    No, they are static over short term periods (Years).
     
  5. blarivee macrumors 6502

    Joined:
    Jun 29, 2009
    Location:
    US
    #5
    Sensors can have "shifts". In general, sensors requires calibration depending on the required accuracy. Although, it is on the bad side for a sensor to drift so much every week. If it continues, you may want to take it to the Apple store since you may have a malfunctioning sensor.
     
  6. JayLenochiniMac macrumors G5

    Joined:
    Nov 7, 2007
    Location:
    New Sanfrakota
    #6
    I have two prints of the same thumb programmed. One using the tip of the thumb and one using the base of the thumb pad (as I sometimes take it out of my pocket using the base of my thumb pad).

    If it's shifting that much it might be a defective sensor. In this case, get it swapped out.
     
  7. JackieInCo macrumors 601

    Joined:
    Jul 18, 2013
    Location:
    Colorado
    #7
    For me, it seems the only print that will unlock my phone EVERY TIME is my left thumb. I have never had that one fail yo unlock my phone, even in cold weather. Maybe because I am right handed and the left thumb gets used the least so it doesn't get affected by anything much at all.
     
  8. JayLenochiniMac macrumors G5

    Joined:
    Nov 7, 2007
    Location:
    New Sanfrakota
    #8
    Or you have less dexterity in your left hand (common with right-handed people) and hit the home button more squarely with your left thumb.
     

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