Touch ID sucks

andymac2210

macrumors regular
Original poster
Jul 18, 2011
228
0
I'd say it works about half of the time.

Set it up for both of my thumbs and every time I press the home button it seems to unlock my phone about half the time. It's literally 50/50 'try again' and successful unlocking.

I've tried re-doing the setup for it about 10 times now, doing exactly what it says on the screen and I just can't make it work properly.

My hands are not greasy, my 5s is perfectly clean and still it doesn't really 'just work' the way you'd expect it to. You seem to have to do it at the right angle every time if you want it to actually work properly, align your finger 20* to the left or right and it'll just say 'try again'.
 

rockitdog

macrumors 68020
Mar 25, 2013
2,441
788
It works about 95% of the time for me. I love it. Works great. I have it set up for both thumb and index fingers. Nicely done Apple. :apple:
 

Knowimagination

macrumors 68020
Apr 6, 2010
2,042
875
I'd say it works about half of the time.

Set it up for both of my thumbs and every time I press the home button it seems to unlock my phone about half the time. It's literally 50/50 'try again' and successful unlocking.

I've tried re-doing the setup for it about 10 times now, doing exactly what it says on the screen and I just can't make it work properly.

My hands are not greasy, my 5s is perfectly clean and still it doesn't really 'just work' the way you'd expect it to. You seem to have to do it at the right angle every time if you want it to actually work properly, align your finger 20* to the left or right and it'll just say 'try again'.
Except for the fact that it has 360 degree readability. You can put it on their upside down and it will read it.

If I were you instead of saying it sucks I would take it to a genius and see if it is faulty.
 

d123

macrumors 68020
Oct 19, 2009
2,010
413
Earth
I'd say it works about half of the time.

Set it up for both of my thumbs and every time I press the home button it seems to unlock my phone about half the time. It's literally 50/50 'try again' and successful unlocking.

I've tried re-doing the setup for it about 10 times now, doing exactly what it says on the screen and I just can't make it work properly.

My hands are not greasy, my 5s is perfectly clean and still it doesn't really 'just work' the way you'd expect it to. You seem to have to do it at the right angle every time if you want it to actually work properly, align your finger 20* to the left or right and it'll just say 'try again'.
You need to do the set up again, I can literally turn the phone 180° and use it upside down and it still unlocks for me.
 

zhenya

macrumors 603
Jan 6, 2005
6,360
2,828
Stop re-doing the setup. Each time you do that you are re-setting its learning curve. Once you've set it up use it as normal, including trying multiple times until it works. If it rejects your fingerprint, but then accepts it again in short proximity, it 'learns' from the rejected print.
 

pmau

macrumors 68000
Nov 9, 2010
1,542
777
Are you sure you are doing it correctly?

You have to click and keep the finger while you lift the button.
If you stop touching it, it fails.

Does it work better if you first use sleep/wake at the top to get to the lock screen and then use your thumb?
 

andymac2210

macrumors regular
Original poster
Jul 18, 2011
228
0
Are you sure you are doing it correctly?

You have to click and keep the finger while you lift the button.
If you stop touching it, it fails.

Does it work better if you first use sleep/wake at the top to get to the lock screen and then use your thumb?
I click the home button and leave my finger there.

It seems to only be able to work with a small part if your finger, if you don't use the very tip it says 'try again', even if you set it up to scan that part of your thumb.

Maybe I was being a little over zealous when I said it worked 50% if the time, but it's less than 70% for me unless I take extra care to make sure I hold it right.
 

mightygitis

macrumors 6502
Feb 3, 2011
271
0
Hampton Roads
I click the home button and leave my finger there.

It seems to only be able to work with a small part if your finger, if you don't use the very tip it says 'try again', even if you set it up to scan that part of your thumb.

Maybe I was being a little over zealous when I said it worked 50% if the time, but it's less than 70% for me unless I take extra care to make sure I hold it right.
Something is wrong I think. As people above have said it's pretty responsive and versatile. My thumb works from all sorts of angles and sometimes when I feel it shouldn't work it does. Like when I didn't touch it quite right, etc.
 

user-name-here

macrumors 65816
Aug 31, 2013
1,110
1
I'd say it works about half of the time.

Set it up for both of my thumbs and every time I press the home button it seems to unlock my phone about half the time. It's literally 50/50 'try again' and successful unlocking.

I've tried re-doing the setup for it about 10 times now, doing exactly what it says on the screen and I just can't make it work properly.

My hands are not greasy, my 5s is perfectly clean and still it doesn't really 'just work' the way you'd expect it to. You seem to have to do it at the right angle every time if you want it to actually work properly, align your finger 20* to the left or right and it'll just say 'try again'.
That's weird. For most everyone who has a 5s, myself included, Touch ID seems to work perfectly. Strange.
 

josh bear

macrumors 6502
Jan 11, 2010
270
77
Perhaps you should return it and try a new one. Mine has worked first time every time since delivery on Saturday. Previously I had to have a company mandated 8 digit pass code. Touchid is so much easier. Love it

Josh
 

firstapple

macrumors 6502a
Sep 25, 2007
991
19
Others that have had this similar issue with their finger prints save the same finger as multiple finger spots in order to make it work. Maybe you could try setting up the finger you are trying to use the most as two different spots and make sure to really let it learn all the sides and tip of your finger, etc.

I haven't had my fail once yet.
 

Ksateskier

macrumors newbie
Mar 18, 2012
22
0
Kansas City
works!

The one time it didn't work I didn't leave my finger on there long enough (meaning I clicked the home button and then moved it off. Otherwise it works flawlessly!

Its quite nice, I don't miss entering my stupid 4 digit pin AT ALL!
 

d123

macrumors 68020
Oct 19, 2009
2,010
413
Earth
Are you sure you are doing it correctly?

You have to click and keep the finger while you lift the button.
If you stop touching it, it fails.
You don't, I often click and lift my finger (subconsciously to go to the number pad to input the code) and then remembering the print reader putting my thumb back down and it still reads and unlocks perfectly.
 

kmichalec

macrumors 6502a
Aug 14, 2010
797
197
Stop re-doing the setup. Each time you do that you are re-setting its learning curve. Once you've set it up use it as normal, including trying multiple times until it works. If it rejects your fingerprint, but then accepts it again in short proximity, it 'learns' from the rejected print.
No it doesn't. If it rejects the print, it's because it thinks its not the print of the person who the phone is set up for, and it's instead someone elses. It doesn't save that rejected attempt and compare it again later and "learn" anything. How do you expect the phone to know if a rejected print is really you vs some stranger? It can learn from a successful attempt and make adjustments as needed, but it cannot learn from a failed attempt.

More than likely, the OP has a faulty unit and needs to exchange it.
 

R1PPER

macrumors 6502
Oct 1, 2008
305
31
maybe he's a tradesman and warn his fingers out?

My pretty princess fingers work flawlessly.
 

zhenya

macrumors 603
Jan 6, 2005
6,360
2,828
No it doesn't. If it rejects the print, it's because it thinks its not the print of the person who the phone is set up for, and it's instead someone elses. It doesn't save that rejected attempt and compare it again later and "learn" anything. How do you expect the phone to know if a rejected print is really you vs some stranger? It can learn from a successful attempt and make adjustments as needed, but it cannot learn from a failed attempt.

More than likely, the OP has a faulty unit and needs to exchange it.
Thanks. I'll trust Anand before I'll trust you.

http://www.anandtech.com/show/7335/the-iphone-5s-review/8

The training process is pretty simple. Just pick up and place your finger on the Touch ID sensor a few times while it maps out your fingerprint. After you complete that step, do it again but focus on the edges of your finger instead. The surface area of the Touch ID sensor is pretty small by comparison to most fingers, so the more data you can give the sensor the better. Don’t worry about giving Touch ID a perfect map of your fingers on the first try. Touch ID is designed to adapt over time. Whenever an unlock attempt fails and is followed by a successful attempt, the 5s will compare the print map from the failed attempt and if it determines that both attempts were made with the same finger it will expand the match database for that finger. Indeed I tested and verified this was working. I deliberately picked a weird angle and part of my thumb to unlock the 5s, which was immediately rejected. I then followed it up with a known good placement and was successful. I then repeated the weird attempt from before and had it immediately succeed.
 

musicjunky

macrumors regular
Sep 20, 2013
200
0
This is futuristic stuff! :p Yeah I suggest going to the Genius Bar if the low rate of recognition keeps up.