Hello everyone,
maybe you know this already but you can unlock your FP3 with fingerprint by default. Maybe it came with an update.
I was having this issue after updating my system to Android 10, but the āfingerprintā option under settings ā security wasnāt even visible, and it did not register anything at all with the fingerprint reader, not even an inaccurate print.
While in settings ā security, I accidentally clicked on āsecurity updateā, and apparently that was not up to date, so I updated it and now my fingerprint reader works as perfectly as it did before.
Perhaps check that all your updates are finished? Mine just needed to restart, but hadnāt given me any push notifications about it so I didnāt know.
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Since acquiring my FP3+ in September Iāve never been able to use the fingerprint scanner / reader satisfactorily, but Iāve often had problems with other fingerprint scanners so I wasnāt surprised.
I had entertained the idea of trying the adhesive tape trick but never got round to it. However since updating to the latest 10 version 8901.3.A.0107.20210513 itās been working perfectly. I canāt be sure this is due to the update but it seems so. No problems with reboots either. Very short taps work fine.
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Hello!
Not sure I have the same issue as yours, but hereās mine: if I donāt use the fingerprint immediately after the boot, I canāt use the fingerprint anymore to unlock the screen.
Here is what happens:
- Boot the phone and wait until the lock screen appears (the one with the clock, by default)
- Either unlock the phone using the pin (and not with the fingerprint) or wait until the screen turns off
- When you try to unlock the phone later, you canāt use the fingerprint method (nothing happens if you touch the sensor) and you must use the pin (or other method) to unlock
Now reboot and use the fingerprint immediately when the first lock screen appears: it asks you to type your pin (as itās the first unlock since reboot, thatās normal) but then you can use the fingerprint every time you want to unlock the phone.
Has this issue already been seen?
I always unlock the phone after booting, otherwise there are apps that donāt get loaded.
Which PIN are we talking about? I take it this is not the PIN for the SIM which is requested first. Peronally I use a pattern rather than a PIN, to unlock the phone.
No mine works fine
What OS and version are you using.?
Have you tried starting in safe mode?
I always unlock the phone after booting, otherwise there are apps that donāt get loaded.
Thatās probably what I should do!
Which PIN are we talking about?
The PIN to unlock the phone, not the SIM card 
.
What OS and version are you using.?
Android 10 build 8901.3.A.0129.20210805
Have you tried starting in safe mode?
Thatās a good idea but currently I no longer succeed in reproducing the problem 
.
Basically it happens when I switch my phone off for the night (if I donāt need the alarm clock). When I boot it again in the morning, I encounter the issue.
I just tried to reproduce by switching off, wait a minute, boot, wait the lock, a minute again, but then I can unlock using the fingerprint (it asks me to type the phone pin as itās the first time after the boot, but the fingerprint sensor is well on).
Iāll pay attention to your suggestion and come back to you next time Iāll sleep in .
Yes fingerprint sensor will not allow login after switching off then on.
Same happened to me. After a small update, the fingerprint no longer unlocked the phone, but worked fine everywhere else.
Rebooting and toggling settings didnāt work.
What worked for me, on my FP3 Android 10:
- Remove all stored fingerprints.
- Reboot the phone
- Add fingerprint again
I can now unlock my phone again by touching the reader.
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Same problem here. Since last week I could not use the fingerprint to unlock my phone (FP3 Android 10) , although all other apps using fingerprint still worked nicely.
No Android update installed in the last couple of weeks, but maybe some firmeware update, Iām not sure?
Same workaround as mentioned above did the trick.
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This is an old topic so I thought it would be good to wrap it up with the following summary. Iām marking this post as āSolutionā so that the topic is seen as solved, but itās the cumulated experience of all the contributors to whom thanks. The information here concerns FP3 standard Fairphone Android (stock OS).
- Make sure Android is up to date
Settings > System > Advanced > System update - Make sure Google Play is up to date (this can be more recent than the System update)
Settings > About phone > Android version > Google Play system update - Clean the scanner if really (visibly) dirty
- Delete all registered finger prints
Settings > Security > Fingerprint - Reboot the phone
- Set up at least one finger.
It can help to record the same finger more than once.
When registering the fingerprint, at each touch, leave the finger on the sensor for about 3 seconds until told to āLift finger then touch sensor againā.
Once at least one finger has been registered, you can use it to unlock the phone except the first time after a reboot. Using the fingerprint is not an option listed under āChoose screen lockā which is managed separately and offers None, Swipe, Pattern, PIN or Password.
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Worked for me still, thank you.
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