Fingerprint sensor service not working

[Mgamerz]

I was using sensorly, and when I locked the screen it attempted to block it when it asked me a question. My phone vibrated for a few seconds as it fought to overcome the fingerprint screen (and failed)
The fingerprint scanner wont initialize (always ready... but never really). I have to reboot(haven't yet). I can't stop the process/service either... no idea why.
Anyone know of any fixes?
Rooted 1.8.3 stock
Sent from my MB860 using XDA App

 

[winky!]

mine randomly stops working (lame, right?) and rebooting always fixes it for me

 

[Mgamerz]

I own a Nokia N810... from my experience rebooting kills the life of your battery with these kinds of devices, and this happens like once every 2 days for me

 

[WiredPirate]

mine randomly stops working (lame, right?) and rebooting always fixes it for me

Same here.

 

[WiredPirate]

I own a Nokia N810... from my experience rebooting kills the life of your battery with these kinds of devices, and this happens like once every 2 days for me

When you say life of battery do you mean it discharges more energy than it would if you didnt reboot it? Or do you mean the battery itself will die months sooner than it would have.?

 

[Mgamerz]

Battery capacity lowers over time. Booting that thing clocked it at 400Mhz (the top speed) for about 5 minutes, eating up a whopping 5-20% of the battery.
I noticed my battery lasted less and less every time it crashed and rebooted (it does it so much now that its pretty useless (read: every 10 or so minutes) - thanks nokia)
I have a feeling its the same way with Lithium Batteries too... The battery life is about 40 minutes (if im lucky) and I used to get like a day (of moderate use).

 

[beazie0885]

mine randomly stops working (lame, right?) and rebooting always fixes it for me

Meee 3 dammit!

Sent from my MB860

 

[BBock9]

mine randomly stops working (lame, right?) and rebooting always fixes it for me

Same but only since 1.83 Hopefully it is fixed in a future update.

Sent from my MB860 using Tapatalk

 

[Mgamerz]

Its impossible to kill the fingerprint reader service. I find that kind of strange.

Sent from my MB860 using XDA App

 

[enoch861]

That kind of makes sense. I think the fingerprint service might be an integral part of the system so you can't fully kill the process... Kinda like the android process.

And the comment about battery dying after a reboot faster is true. If you reboot a phone, especially these android beasts with 1ghz+ processors, revs up the processor to max, essentially eating up a large chunk of battery because it would be running at max for 5-10+ minutes. It's crazy. So unless you wanna do a lot of charging, don't restart too much.

Sent from my SGH-T959 using XDA App

 

[Mgamerz]

I mean like the life of the battery.
New: 16 hours of use
200 reboots later :4 hours of use

Sent from my Motorola Atrix 4G on the network with the most backhaul, whatever that is

 

[yokozuna82]

I notice mine doing this as well the fingerprint scanner even got really hot at one point crazy must be a 1.83 thing

Sent from my MB860 using XDA App

 

[bradym239]

Well on one hand I'm happy to see it's not just me. On the other hand it sucks that it consistently happens. For me if I continually run my finger on the scanner on a reboot it will unlock the screen. Then, after a bit (or a few locks) it will stop working and just say "Initializing Fingerprint Scanner" or something along those lines. I ended up disabling it and using a pattern as a screen lock.

For me it happened after installing a ROM that had 1.8.3 as its base. I've seen some previous mentions of the issue I'm seeing and tried their fixes but they haven't worked. I'm eager to see this get fixed. Otherwise I really like the device.

 

[exume]

I use widgetlocker and once in a while it won't work when I first wake it up but if I hit the back key and go to the default lockscreen it initializes right away and I can use the scanner.

Holy run-on sentence, Batman! Sorry

Sent from my MB860 using XDA App

 

[Mgamerz]

I may have been able to reproduce it. Unlock your phone, then immediately lock it, then immeditely wake it. Killed the fingerprint sensor.

Sent from my Motorola Atrix 4G on the network with the most backhaul, whatever that is

 

[bradym239]

I may have been able to reproduce it. Unlock your phone, then immediately lock it, then immeditely wake it. Killed the fingerprint sensor.

Sent from my Motorola Atrix 4G on the network with the most backhaul, whatever that is

Yeah for me, and maybe this is a similar state/situation, I find it really happens when I swipe the unlock screen after waking the phone up rather than the fingerprint sensor.

 

[Rubb]

It happens to me sometimes.

But instead of rebooting my device, I go to Settings -> Location & security -> Change screen lock. There I use my password/pin and then I wipe my fingerprints already registered and start all over again.

My system update is the one before 1.5.7 I guess (the android updates are called OTA ### right?)

Hope it helps someone who doesn´t reboot the device.

Thanks