I suppose you’re on the latest OS version, right?
Android 11, June 5, 2022 Security update (that big 500MB sucker 
).
Build FP4,FP40.A.142.20220628
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Hello
I would like to present a workaround to the problem presented here which allowed me to normally use the FP sensor under DivestOS. Registering the same fingerprint on multiple slots seem to greatly increase the fingerprint sensor sucess rate making one of the “multiple attempts” generally successful. I would say that it works in more than ninety percent of FP unlocks. As a drawback I can only use one finger to unlock my phone
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Personally my workaround is to rub very quickly the sensor with my finger from top to bottom.
Yeah same problem here
I think putting the sensor (scanner) on the side was not a good idea since that is where you hold your phone …
I would also say that the protective case is a root cause. I had not issues at all for several weeks, however since Tuesday evening when I put the case on, I noted the issue already several times. It happens mainly when I try to use the thumb and dont pay attention to really bring it down to the Sensor.
I really wonder if something like this is in play. Because it works great for me, also with the official case. So the only difference may be the fingerprint patterns.
I don’t use a case 90% of the time and I still have this issue.
It’s not even just the thumb, the sensor is just too sensitive, it’s reacting to every part of the hand. I can press my palm against it and it gets triggered.
If I enable unlocking with fingerprint, I reach “too many attempts” just by taking it out of my pocket…
And yes, I have scanned my fingerprints several times, retried it countless of times.
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I recently purchased the official case and I don’t really experience this issue. Prior to that I was using a 3D printed one. If anything, it actually prevents me from accidentally touching the sensor when I just grab the phone. 
I also only scanned each finger once.
I dont think there is the one root cause and that many may play together. So overall something/somehow it seems too sensitive and in my case its mainly triggered by the case and not by my fingerprint patterns (alone) as it worked without the case pretty good.
True since I have the case I enabled the fingerprint feature that allows to directly unlock, without needing to press the power button first. It was disabled becauseI unlocked the phone many times when just taking out of the pocket
I would like to return the topic to it’s original scope. The issue we are discussing is not how succeffully the scanner scans your fingers. So solutions like “do xyz, and your finger will be scanned successfully more often” are not really solutions to the issue. At best they are workarounds for some specific situations.
The issue is about the behavior when the fingerprint scanner fails to scan your finger. And that when the scanner fails to recognize your finger it makes multiple attempts so quickly that it blocks the scanner, before you have a chance to stop it. That happens in many cases where you’re not even trying to unlock the phone, e.g. when you’re taking it out of your pocket or just picking it up from the table.
So the real solution would be a change in the behavior when the fingerprint scanner fails to recognize your finger. More specifically either to have some sort of timeout between each scannig attempt or to wait for you to lift your finger and put it back a second time. And the former solution would be the better one.
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I do think we are all at the topic it just seem to be difficult to reliably reproduce as some dont see any issue, I only had the issue since I use a case and some have the issue also without the case. Overall the more examples reported to Fairphone, the better to troubleshoot…
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I agree, these are all symptoms of fundamentally the same root cause(s).
I didn’t open a ticket so far, since I’m not running stock FPOS and don’t want to muddy the waters, but everyone else affected, please #contactsupport
The more people talk to support, the sooner this will get fixed.
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That’s the funny thing, right? Because for some people it works reliable and when not, there is this throttle in place. I suppose people already tried safe mode and perhaps a factory reset?
Not sure what the benefit would be when its also happening with Custom ROM installed or as in my case only happening with the protective case and no Apps were installed or updated since I use the case? My FP is only a few weeks old and running the same OS Version all the time
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My Fairphone has gone through a lot of factory resets when it was on stock FPOS, I’ve had it running in safe mode as well, and as @yvmuell said, it’s happening on custom ROMs too.
That sounds like a driver / firmware issue to me. Or maybe it’s a problem with our hands, that would be a bit harder to fix 
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Update to /e/ OS version 1.5.1 (2022-11-2), based on Android 12, totally solved the issue for me !
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Is there any way to configure FP’s pretty aggressive fingerprint reading logic? when i put any finger to button (either to open it or check lock screen), FP starts shooting its tries to read fingerprint without any logic. You just hear TRATTRATTRATTRATT (vibration indicating its doing nonstop-fingerprint reading) and then see “too many attemps, try again later”
is there any setting/devmode-setting or anything to give any actual logic for this pretty barebone for-loop algorithm? I had pixel phone previously and it tries once to read finger and if its incorrect, its does it again AFTER i take off finger from sensor and reinsert it. This seems pretty logical behaviour, is there any way FP can do same behaviour?
Hi and welcome, I moved your topic to this exist, so please see above, you are def not alone…
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I’ve contacted support about this, but I’ve got the standard response back about factory reset etc. I linked to this thread in my ticket to show it’s not an issue with just my phone but an issue with how the fingerprint sensor is configured out of the box.
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