Home button and fingerprint gestures not working - Samsung Galaxy S8 Questions and Answers

Well, not working consistently.
Assuming it's software but figured I'd ask here to make sure it's not a hardware problem.
Few days ago, my fingerprint sensor wouldn't unlock with my finger, just nothing happened. Rebooted, rescanned my fingerprints and seems to be okay now, but I've noticed the gesture to pull down notifications using the fingerprint sensor doesn't always work. Most of the time it does, sometimes it just doesn't do anything, then a few mins later it's okay.
And then the pressure sensitive home button, most of the time it's fine, occasionally it doesn't register and there's a delay with the vibrations.
Are these software issues, and has anyone else had these issues?
I'm using Nova launcher, if that makes a difference.

Related

Possible orientation issues after 2.2?

Sometimes, and I notice it mostly after unlocking it, the screen orientation is off (I'll be holding it "in portrait", but the screen is in landscape mode). Instead of switching immediately to portrait, or even after a couple seconds, I have to hold it in landscape then back to portrait for it to switch.
I only started noticing it after installing 2.2 last week, and it doesn't happen all the time. Has anyone else seen this behavior? I haven't calibrated the compass since 2.2, and after 2 minutes of rotating the phone around on 2.1, on at least two different occasions, I said screw it and stopped (before the calibration finished). Could that by why?
Also, maybe it's the launcher (ADW), but sometimes click-holding a widget/app shortcut on one of the screens is "wonky". Sometime I can click-hold it and the phone will vibrate and I can drag it to the trash or move it around no problem. But then sometimes it just won't activate. I just tried to delete a widget around 20 times. I click-held for anywhere from 1-3 seconds, and no vibrate. However, after I let go, it activated the program. WTF? Eventually it worked, but it really shouldn't take that many attempts.
Same issue. I have LP+. I disabled auto-rotation in settings\display as a temporary fix.
Sent from my DROIDX using Tapatalk
I have the same issue after unlock too. I've noticed that I have to hold it in portrait for a few seconds and tap the top to get it rotated. Quite annoying since it happens all day long. You're right, this didn't happen before froyo.
Anyone have skills with re-mapping buttons? I would love a dedicated button to rotate screen. I wouldn't mind the camera button remapped for that. Full Press=Rotates screen/Half Press=Locks screen in that rotation.
thats odd im on rooted 2.2 and dont have that problem with adw installed on it. it could be the accelerometer. i notice it other times not after unlock. usually i do have to wait a second and tapping it does help which leads me to belive its the accelerometer. however if this is a really big issue for alot of people then a button to auto rotate the screen would be very helpful.
Did anyone try calibrating their compass after moving to 2.2 and see if that fixes the screen orientation issues?
Sapo, I have. After doing that it wasn't happening for a little while (maybe a day or so), but it's back now for the last week, and it's happening more often. And I tried what someone else suggested, tapping on the top of my phone with a finger, and that flips it around to normal every time.
happens a lot with mine too, unrooted, still running moto blur...several apps open that way, email, messaging....not always though, so it's a bit puzzling.
I would try using the Stock Blur Home to see if its just ADW
see the post above yours
Ubermicro13 said:
I would try using the Stock Blur Home to see if its just ADW
Click to expand...
Click to collapse
see the post above yours

E-ink Lock Screen

Hello everyone,
So, I'm having a bit of a strange problem with my Yotaphone 2...
I did a factory reset on it a while back, and everything went fine, except now, when the screen is locked, I can no longer unlock the e-ink screen by dragging up the lock icon on the bottom of the e-ink screen. I have to use the hardware power button, which is a little bit inconvenient at times. I've spent quite a while trying to locate what setting got effected to make it not function, but with no luck. Anybody have any idea where I can turn this function back on?
It happened to me too, I think it was something related with the Lollypop update, but could be some setting that has changed and that I cannot find. However, I found that if I double tap before tracing the finger motion, it usually works. That's why I didn't look further into the issue.
alienBaboso said:
It happened to me too, I think it was something related with the Lollypop update, but could be some setting that has changed and that I cannot find. However, I found that if I double tap before tracing the finger motion, it usually works. That's why I didn't look further into the issue.
Click to expand...
Click to collapse
No luck for me. I'm still on Kitkat anyway...
Looks like I might be stuck...
alienBaboso said:
It happened to me too, I think it was something related with the Lollypop update, but could be some setting that has changed and that I cannot find. However, I found that if I double tap before tracing the finger motion, it usually works. That's why I didn't look further into the issue.
Click to expand...
Click to collapse
Actually, scratch that... after your double tap suggestion, I started randomly tapping around managed just once to get it to unlock from a screen touch, but have not been able to replicate the movement so it happens again. What movement exactly do you use to get it to unlock?
Update:
Seems to be some kind of sensitivity issue. I can get it to unlock about once out of every 50 swipes. Less than ideal.
I leave the phone with the E-ink screen facing up (to prevent the gyroscope from switching sensitivity to the amoled display instead), then press twice the lock icon, and on the second time my finger touches the E-ink, I drag it up to the center of the phone. It took a bit of practice but now I can get it to work consistently. The double tap is because if the phone has been inactive for a while, it enters sleep mode, and it looks like that turns off the finger gesture recognition. Other possible explanations are that maybe you don't press the screen firmly enough, or maybe you placed some plastic sheet over the back display and that reduces sensitivity.
I noticed that the unlock gestures on the EPD work only when the phone recognizes that you've it in the hand or you're using it. So I take it and I unlock it effectively. Trying to unlock when it lays down and you haven't moved it for a while brings to your experience.
Thanks to both of you for the advice... unfortunately, neither seems to be doing the trick. Just a caution for any other people who are thinking of doing a factory reset - it seems to seriously impact sensitivity for the e-ink unlock, so be aware.
I never succeed to do slide up unlock even within 1st tutorial. Double tap unlock was the only workaround for me. Also activated glove sensitivity mode.

Always on 2nd screen in the dark issue ??

I bought a used V20 with a defective screen. I change it, everything work for fine, but i notice a strange behaviour with the second screen.
The second screen is always on and i can unlock it by only touching the finger print sensor. BUT at night (or in the dark), the second screen turn off and i need to press 2 times on the power button to wake the phone.
The Knock On feature doesn't work too in the dark.
The light sensor seems to work correctly.
I would love to post a video but i can't......
This is an issue or it is normal ??
Thanks for your help !
Sounds like Doze.
I don't find anything related to Doze or "standby" about this screen.
check "daily timeout" on Show when main screen off. Seem u turn this function on at night
David_26 said:
I bought a used V20 with a defective screen. I change it, everything work for fine, but i notice a strange behaviour with the second screen.
The second screen is always on and i can unlock it by only touching the finger print sensor. BUT at night (or in the dark), the second screen turn off and i need to press 2 times on the power button to wake the phone.
The Knock On feature doesn't work too in the dark.
The light sensor seems to work correctly.
I would love to post a video but i can't......
This is an issue or it is normal ??
Thanks for your help !
Click to expand...
Click to collapse
thophan1975 said:
check "daily timeout" on Show when main screen off. Seem u turn this function on at night
Click to expand...
Click to collapse
Don't seems to change anything
Could it me the last security update ??
I reset the phone today and same "issue"
David_26 said:
Don't seems to change anything
Could it me the last security update ??
I reset the phone today and same "issue"
Click to expand...
Click to collapse
Sounds like there is an issue with the proximity sensor (not light sensor).
It's setup to turn the second screen off as well as disable knock on if the phone is in your pocket. Even during daylight hours if you put your finger within an inch of the sensor when the main screen is off, it should trigger it.
It seems your sensor may just be messed up.
David_26 said:
Don't seems to change anything
Could it me the last security update ??
I reset the phone today and same "issue"
Click to expand...
Click to collapse
There are a few apps on the play store you can try to fix it if you are rooted. You could also try a sensor app to see if the proximity sensor is showing feedback properly although you might need to be rooted for the apps to show the proximity sensor properly (not sure). My note 4 had a hardware test in the service menu not sure how to do it on V20 though.
Same Issue
Edit: Resolved the issue. Please read this post. There is a small rubber gasket-type thing that sits in the hole of the phone's frame where the proximity sensor is positioned. That rubber gasket was not included with my replacement screen. I pulled the rubber piece out of my original, broken screen, and installed it into my replacement screen. I am no longer having issues with the phone in the dark.
I am experiencing the same issue. I have a T-Mobile LG v20 (H918) and I cracked the screen last week. I ordered a replacement LCD assembly and installed it myself. Everything works fine during the day or in a well lit room, but at night, in a dark room, I experience all of the issues you are reporting. I am finding other posts online with our same issue, but as of yet, no resolution.
Even though the second screen is set to always be on, at night, in a dark room, it turns off almost immediately after locking the phone. It is almost as if the phone is in a "deep sleep" or something, because the following also occurs:
Knock On will not wake the phone
Fingerprint sensor will not wake the phone
Even connecting to the phone via AirDroid / AirMirror the phone doesn't wake
Need to press the power button multiple times to wake phone
Providing a light source immediately turns on second screen and resolves all issues

Problems with the touch screen and fingerprint scanner

Is anyone having issues with either/both the touchscreen or the fingerprint scanner?
Regarding the screen, I went out last night and the phone remained inside my jeans pocket. Was looking through it this morning to find I have 6 sets of 30 burst photos (of the inside of my pocket), a load of single photos (of the inside of my pocket) and a 10 minute video taken inside my pocket! It looks as though the shortcuts on the lock screen have been activated to open the camera but the phone never left my pocket, I never touched the screen so its a little worrying how easy it is to do that!
And on the fingerprint scanner, I'm finding it really slow to unlock the phone on occasion, and many times it will take several attempts to recognise my print - this is especially true if I have any kind of small "contaminant" on my fingers. Slightest bit of sweat or moisture and it won't work. In fact, its really hard to use unless you have completely clean and 100% dry hands. My GF had a Nexus 5X (before it developed bootloop problems and had to be returned) and the scanner on that was pretty much flawless and would recognise prints in whatever conditions.
Anyone else finding these kinds of issues?
kingdave82 said:
Is anyone having issues with either/both the touchscreen or the fingerprint scanner?
Regarding the screen, I went out last night and the phone remained inside my jeans pocket. Was looking through it this morning to find I have 6 sets of 30 burst photos (of the inside of my pocket), a load of single photos (of the inside of my pocket) and a 10 minute video taken inside my pocket! It looks as though the shortcuts on the lock screen have been activated to open the camera but the phone never left my pocket, I never touched the screen so its a little worrying how easy it is to do that!
And on the fingerprint scanner, I'm finding it really slow to unlock the phone on occasion, and many times it will take several attempts to recognise my print - this is especially true if I have any kind of small "contaminant" on my fingers. Slightest bit of sweat or moisture and it won't work. In fact, its really hard to use unless you have completely clean and 100% dry hands. My GF had a Nexus 5X (before it developed bootloop problems and had to be returned) and the scanner on that was pretty much flawless and would recognise prints in whatever conditions.
Anyone else finding these kinds of issues?
Click to expand...
Click to collapse
Among the other problems, I have one with AOD that tends to disappear even if active.
I also have issue with the fingerprint reader.
Nothing, unfortunately, has changed with the 10L update.
I hope they will do a better work with the next big update promised with the G6 + presentation.
MuttleyMB said:
Among the other problems, I have one with AOD that tends to disappear even if active.
I also have issue with the fingerprint reader.
Nothing, unfortunately, has changed with the 10L update.
I hope they will do a better work with the next big update promised with the G6 + presentation.
Click to expand...
Click to collapse
The problem with AOD could be related to the fact that something is covering the proximity sensor. If the sensor is covered AOD won't display.
My fingerprint has no problem, and my screen never unlocked inadvertently.
Inviato dal mio LG-H870 utilizzando Tapatalk
Erpinoob said:
The problem with AOD could be related to the fact that something is covering the proximity sensor. If the sensor is covered AOD won't display.
My fingerprint has no problem, and my screen never unlocked inadvertently.
Inviato dal mio LG-H870 utilizzando Tapatalk
Click to expand...
Click to collapse
No, the device stays always on the table with nothing on/near it. This issue is relatively new.
The fingerprint reader for some reason in unable to read nothing so I have to unlock with PIN and restart the device.
I think it's more likely that you accidentally managed to double-press the volume down button and activated the camera that way.
At least you can disable those shortcuts. One of my pet peeves is front-facing home buttons that can turn on the screen, that stick out and are easy to activate in your pocket.
The fingerprint reader seems pretty good to me although I've definitely noticed it doesn't work if my finger is wet. Maybe I'm just happy it works a million times better than my old phone.
jdock said:
I think it's more likely that you accidentally managed to double-press the volume down button and activated the camera that way.
At least you can disable those shortcuts. One of my pet peeves is front-facing home buttons that can turn on the screen, that stick out and are easy to activate in your pocket.
The fingerprint reader seems pretty good to me although I've definitely noticed it doesn't work if my finger is wet. Maybe I'm just happy it works a million times better than my old phone.
Click to expand...
Click to collapse
Nope, first thing I did when I got the phone was to turn the shortcut keys off - I previously had the G4 and dislike these on that, so turned them off here for the same reason
kingdave82 said:
Is anyone having issues with either/both the touchscreen or the fingerprint scanner?
Regarding the screen, I went out last night and the phone remained inside my jeans pocket. Was looking through it this morning to find I have 6 sets of 30 burst photos (of the inside of my pocket), a load of single photos (of the inside of my pocket) and a 10 minute video taken inside my pocket! It looks as though the shortcuts on the lock screen have been activated to open the camera but the phone never left my pocket, I never touched the screen so its a little worrying how easy it is to do that!
And on the fingerprint scanner, I'm finding it really slow to unlock the phone on occasion, and many times it will take several attempts to recognise my print - this is especially true if I have any kind of small "contaminant" on my fingers. Slightest bit of sweat or moisture and it won't work. In fact, its really hard to use unless you have completely clean and 100% dry hands. My GF had a Nexus 5X (before it developed bootloop problems and had to be returned) and the scanner on that was pretty much flawless and would recognise prints in whatever conditions.
Anyone else finding these kinds of issues?
Click to expand...
Click to collapse
I have had the camera seem to turn on by itself a few times, but not to the extent that you are describing. My finger print scanner works fine in terms of recognizing my print and unlocking my phone. I have a completely different issue with my finger print scanner though. When I try to clean my fingerprint scanner with a cloth, it triggers the phone to dial 911! It has done it many times from my pocket too. When it did it in my pocket, I could not for the life of me figure out what was triggering the 911 calls. The first few times I didn't even know that it had dialed 911 until 911 dispatch called me back. I finally figured it out one day when I was purposely rubbing the fingerprint scanner with a cloth to clean it, and sure enough, it dialed 911. Sometimes if I just rub it with my bare finger it will dial 911. It's VERY annoying, for me and the 911 operators both I imagine!

Moto E4 XT1767 Fingerprint Scanner Lag

I picked up this phone on my local craigslist late last week (at $15, I could not resist), unlocked it, and have been using it. When compared to my moto Z play, I have to hold the fingerprint scanner longer to turn the phone on or off which for some reason is very frustrating. I do not believe this is a hardware limitation as the fingerprint response is instant if I turn the device on to my lock screen and then touch the fingerprint scanner.
Does anyone know if it is possible to correct this? At the moment, I have to touch the scanner for ~1 second before it will turn on/off my phone. If it were possible to change this to ~0.5 seconds, I would be a happy camper.
skotseno said:
I picked up this phone on my local craigslist late last week (at $15, I could not resist), unlocked it, and have been using it. When compared to my moto Z play, I have to hold the fingerprint scanner longer to turn the phone on or off which for some reason is very frustrating. I do not believe this is a hardware limitation as the fingerprint response is instant if I turn the device on to my lock screen and then touch the fingerprint scanner.
Does anyone know if it is possible to correct this? At the moment, I have to touch the scanner for ~1 second before it will turn on/off my phone. If it were possible to change this to ~0.5 seconds, I would be a happy camper.
Click to expand...
Click to collapse
Are you running stock software? If so, I'd try erasing and re learning your finger prints. I got an E4 for my daughter to use on WiFi - FP sensor is snappier and more accurate than my MZP. If that doesn't do it, I'd be inclined to think hardware issue.
dandrumheller said:
Are you running stock software? If so, I'd try erasing and re learning your finger prints. I got an E4 for my daughter to use on WiFi - FP sensor is snappier and more accurate than my MZP. If that doesn't do it, I'd be inclined to think hardware issue.
Click to expand...
Click to collapse
Well here is the thing: when the phone is on the lock screen (screen turned on and asking for fingerprint or pattern/pin) the fingerprint sensor is instant and always accurate. The only time I am seeing lag is when I hold to turn the screen on (the screen is off but holding the fingerprint sensor turns it on) or off (phone is on and unlocked but holding the fingerprint sensor turns off the screen).
Can you confirm that your daughters phone has a faster response when turning on/off the screen?
i've read from a handful of reviews that the scanner is just simply not as fast as the MZP or even g5+. could be a limitation of the processor? i moved from a MZP to the e4, definitely a noticeable difference in speed.
skotseno said:
Well here is the thing: when the phone is on the lock screen (screen turned on and asking for fingerprint or pattern/pin) the fingerprint sensor is instant and always accurate. The only time I am seeing lag is when I hold to turn the screen on (the screen is off but holding the fingerprint sensor turns it on) or off (phone is on and unlocked but holding the fingerprint sensor turns off the screen).
Can you confirm that your daughters phone has a faster response when turning on/off the screen?
Click to expand...
Click to collapse
Yep, the times I use it, it's normally from screen off condition, or from in use to lock/turn off screen.
I'll try to do a side by side tonight with my MZP
dandrumheller said:
Yep, the times I use it, it's normally from screen off condition, or from in use to lock/turn off screen.
I'll try to do a side by side tonight with my MZP
Click to expand...
Click to collapse
here's a link to a quick head-to-head video. What is apparent is that the other poster is indeed correct - MZP is slightly faster from touch to screen on, and touch to screen off. The difference is slightly more pronounced when waking than going to sleep. What isn't apparent from the video is the timing of the haptic feedback. On the MZP the vibration is triggered almost instantly at touch, with the bulk of the delay from touch to screen on happening after the vibration triggers. On the E4, the vibration occurs around the middle of the span from touch contact to screen on. This gives the impression in use, at least to me, of slightly more laggy sensor (on the E4) but slightly faster unlock times (on the E4).
Guess I don't have to be jealous of my kid's phone anymore. Was a cool experiment.

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