fingerprint works well with right finger, but not the left? - LG V20 Questions & Answers

I have a US996 LGV20 and also a H918 LGV20, the latter I had first before the former and it's been working well specifically with fingerprints from both hands. with the US996 model my right finger unlocks just as well as the H918, however the left finger almost always has trouble unlocking the device. I've tried re-doing the finger and it seems to scan in with no problems, but when I go to unlock it almost never unlocks. I've even tried scanning the same finger twice, but still nothing. any ideas? the left finger is not fscked since it's the same on the H918 and that works.

I have some exema and at times me hand start to peel. Every phone I've used requires me to re-do my finger prints anywhere from 1 week to 2 or 2.5 weeks. Some times whn it acting up it could be days.
Perhaps there is something you do that "tears up" the skin on you left finger that causes it to not be read and you may have to periodically re-scan it.
Just a though...
It the only thing I can think of, since it works with you right hand.

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Strange Touchscreen NAND Issues

ok, I have a strange issue that I can not seem to find the answer to. Whenever my phone locks after not being used etc. When I wake it up, the touchscreen will not let me unlock. It takes me close to 50 attempts to do so. However once I actually am successful in getting it unlocked. The touchscreen works flawlessly. I have tried several different builds, all of them I have the same issue. I have done Task29 and started fresh on that front each time. I tried a couple different radios. Any suggestions?
**** man i got the same problem! i tried hard reset, rom updates, other buils but it wont go away!
plz someone help us!
Hi,I'm using BOYPPC-SHIFTPDA GINGER 2.3.3 RAM_V5 works great so far the best that I tried.After u flash android it's recommended to wait few mins until it loads everything then do a shut down - not a restart.then again u wait few mins and u do a second shut down. after that the os should work fine ,at least for me works great. if that doesn't help ,try to reinstall everything from the start..hspl radio etc.
You could just turn off the lockscreen? Get 'NoLock' from the market. That should do the business if you want.
I've got the same problem since 5 days, It started when I started using WIFI and turning off my 3G ..
you have the same problem my hd2 has....it is a hardware issue. the screen becomes unresponsive. if you still have warranty send it in for a repair. if not... repair it yourself. it's not that hard. the screen wire is probably just loose.
follow this video to take apart your hd2.
http://www.youtube.com/watch?v=cL-jnUKufC4
Sounds like a similar problem that I'm experiencing. If I wake the lockscreen with the send key instead, it works. When I boot I get exactly one shot with the end key then it locks up again. I'm able to use it with the send key, but concerned it might get worse. If anyone finds the solution please post.
I actually for the first time had this, and I know this is going to get flamed but its not the Screen thats the problem. And I think (BIG IF) that the dreaded unresponsive screen issue that we keep reading about Majority of them I think is not the screen.
I have 2 HD2s and both have worked flawlessly without any problems, but today I was playing with my test phone that doesnt get used that much and I noticed after installing a new rom that my screen after I played with it for a bit went black (sleep) and when I woke it up it wouldnt respond, first thing that crossed my mind is I just lost my digitizier, and started wondering okay why, I went as far to re-flash WinMo stock HD2 rom, same issue, so I decided its time to find out exactly whats causing this, and I found it. I wasnt going to make a post again cause I figured people would be "Not another thread about this" but I know whats causing the screen issue, at least this is my suspicision and I have temporarily fixed mine.
The problem is HARDWARE, The Culprit: THE END KEY (Red Button)! The Answer to "How or Why": The "End" key is used to turn the phone on and off or to put it in sleep mode, it is the most used key out of all 5 keys, it is used probably 7x more then all the rest, Its used for just about everything, now how does this cause the unresponsive screen? Easy, the phone lock or sleep is associated with this key, Its the only way to make the screen go off other then waiting for the time out period. Because by habit we mostly hit the end key to turn the screen off the phone automatically associates this with locking the phone, once that happens the screen becomes unresponsive because of several reasons: 1) The contact under the actual key has dirt which causes the button to stick in the down position, 2) the contact is bent which the "end" key is pressing down on the contact which is making contact with the board and causing it to be unresponsive, 3) The contact is worn. This is the reason why if you press the end key a few times (anywhere between 2-10) and then try the screen responds, this is cause your "unsticking" the key which then lets the screen respond.
Most of us when we hit the end key press to the far right to avoid hitting the back key (The button with the left arrow) which causes the end button to lean toward the right. But you can wake the phone up with the other 4 keys to the lock screen which will allow you to unlock the phone. As a temporary fix for myself, on my test phone I now make sure to press on the left side of the key to prevent this from happening, since its a test phone I'm not worried, but the real solution is to take the phone apart and clean the underside of the end button, and the actual contact with alcohol to remove the build up of dirt and whatever else. And also if the contact frame is bent to GENTLY bend the right side back up alittle to stop it from happening, or sending it to htc and letting them fix it.
We have to RE-TRAIN ourselves to start using the other keys to wake the phone up and not rely on the end key so much.
Hope this helps anyone finally why we have this problem. And if it works for you then hit the Thanks button

Unlock 6P when laying on Desk?

Definitely enjoying the Nexus 6P after getting it yesterday. After bringing it to work that, I have to say that it's a little frustrating having to pick it up to unlock it with the fingerprint reader on the back. Coming from a Galaxy S6 this wasn't an issue since it was on the front. Besides that I'm definitely enjoying this phone more.
I was thinking about getting a dock for it, but realizing it would be the and issue. This is where double tap to wake would really come in handy if a dev ends up figuring out a way to get that to work (if it's even possible).
I was going to try to look into making my fitbit a trusted device if possible which could help the issue. Anyone else struggling a bit with the same thing? I really like having the fingerprint reader on the back otherwise. Or anything else people are using for this? I definitely don't want to set a trusted location at work...
Thanks in advance!
-J
Sent from my Nexus 6P using Tapatalk
are you to lazy to press the power button on the side and punching in a code?
While the phone is face up on the desk you can still unlock the phone by swiping up from the bottom of the screen and using your normal unlock method. The other option is to lay it face down and touch the sensor before picking it up.
I was thinking about not using Smart Lock because of the finger print sensor. I found it convenient to have it unlock paired to my smart watch because of this reason. I don't have to pick it up to unlock.
I Smart Lock with my Pebble Time, and a 5 second lock delay when not paired. I wear my watch when I'm out of the house but it usually stays within range and unlocked when I'm at home as well. I do find myself still using the fingerprint scanner to wake the device as I take it out of my pocket even when a PIN isn't required.
nbaj2k said:
Definitely enjoying the Nexus 6P after getting it yesterday. After bringing it to work that, I have to say that it's a little frustrating having to pick it up to unlock it with the fingerprint reader on the back. Coming from a Galaxy S6 this wasn't an issue since it was on the front. Besides that I'm definitely enjoying this phone more.
I was thinking about getting a dock for it, but realizing it would be the and issue. This is where double tap to wake would really come in handy if a dev ends up figuring out a way to get that to work (if it's even possible).
I was going to try to look into making my fitbit a trusted device if possible which could help the issue. Anyone else struggling a bit with the same thing? I really like having the fingerprint reader on the back otherwise. Or anything else people are using for this? I definitely don't want to set a trusted location at work...
Thanks in advance!
-J
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
Unfortunately I've never found smartlock with a fitbit reliable. It only senses the fitbit when the fitbit syncs....it's not always connected. But for real....press the side button and punch in your pin. 1st world problems.
I turned off the finger print scanner for this reason alone. Now I'm just waiting for NRT (I'm too lazy to manual root these days) to be updated so i can root it and fix the rotation on the lockscreen and hopefully add double tap to wake as well. I normally have my phone on a cell phone stand when I'm at my desk, so its always in landscape. Not having the lockscreen able to rotate is dumb, especially in the car. I'm also thinking of just putting one of those NFC stickers on that cell phone stand at work. Just need to find the ones i have.
Dt2w is available with flar2's kernel now
Double tap to wake is available with stock kernel, as well. Just need to enable it using the code in flar2's kernel thread. Of course, this requires root.
On topic, I find myself lifting the phone up to use my fingerprint to unlock the device. Sure, I could double tap it and input my pattern, but it seems easier to just pick it up.
Wasn't trying to come across as lazy (although I'm sure I did!) Just adjusting to the fingerprint reader on the back and was trying to get different thoughts. I'm possibly going to give double tap to wake a try, thanks for mentioning that.
Sent from my Nexus 6P using Tapatalk
Dont worry about it, I don't like it either. A sensor in front is just as easy to use and unlike the rear sensor can be used without picking up the phone. Nor do I want to enter in my very long and complex password every time I want to check my notifications, use the calculator, etc. as the phone sits next to me on the desk. Calling this lazy is baffling to me, I work hard to lay out my phone out and configure it so it can perform with absolute maximum efficiency allowing me to get get to and use any application or the phone itself with the minimum time invested. Of course everyone knows they can enter their password as an alternative, suggesting it is pointless and why anyone would want to I cant guess.
For me in the most part it's a non issue because the majority of times when I have the phone sitting next to me in that scenario it's at work or at home and the phone is already unlocked. Double tap and I'm rolling. Course I knew all this going in but I had hoped I'd make friends with the rear location and that hasn't happened and probably wont. I like this phone, pretty darn solid device but its not perfect.
If the sensor was on the front, people would complain it wasn't on the back. Can't please everyone with that.
In my opinion, it's in the perfect spot. Coming form a Nexus 6 and before that a Moto X 2013, I loved the dimple and always put my finger there naturally. The Nexus Imprint is the same way. Today I forgot my Pebble Time on the charger so Smart Lock isn't active. Using the sensor is working great instead of entering my PIN. I think the placement on the back makes the most sense because there is already a way to unlock from the front (touch screen). Putting both on the front would likely mean a bigger device/smaller screen or very odd placement (off the the side of the speaker or something). The only happy medium would be putting it on the side with the power button, but that could still mean you'd wear out the physical power button using it all the time. The Nexus Imprint has no moving parts and saves your power button for the good stuff like getting into the bootloader.
I use smart lock with locations for my home and office so i don't need to unlock the phone when it's on a desk at work or at home. I also set my phone lock to 20 min after sleep and to not lock instantly when power button is pressed. I don't see the need for your phone to be constantly locked. If I leave it somewhere it will lock in 20 mins but if I'm actively using it then I don't want to to keep locking.
nonnasmyladie said:
I use smart lock with locations for my home and office so i don't need to unlock the phone when it's on a desk at work or at home. I also set my phone lock to 20 min after sleep and to not lock instantly when power button is pressed. I don't see the need for your phone to be constantly locked. If I leave it somewhere it will lock in 20 mins but if I'm actively using it then I don't want to to keep locking.
Click to expand...
Click to collapse
I do the same thing. I made home and work trusted places and use the phone at my desk without having to worry about unlocking it.
I personally use Smart Lock with my Moto 360. Works well for me.
lizardrod said:
I do the same thing. I made home and work trusted places and use the phone at my desk without having to worry about unlocking it.
Click to expand...
Click to collapse
I could never get smart location to work for me. it's really odd that yours stays unlocked at home.
valapsp said:
I could never get smart location to work for me. it's really odd that yours stays unlocked at home.
Click to expand...
Click to collapse
I don't use it, but I've seen people say that it works better if you setup four locations directly around your home instead of just one centered on it. This way they overlap and if you're in any of them, you'll be unlocked. The very center being the most saturated area with all four circles overlapping.

Security Unlock Issue

I have a security issue, unless its me being silly.
I am fully stock unrooted.
I have never had any problem until today and I realised my phone unlocked without a pass code or finger print, I know this because I always wear rubber gloves and have to type the pin in to get into my phone, I do this day in day out and today after several unlocks it stopped asking for the pin.
I have uploaded a video showing what happens
It funny though because when I click the lock on the bottom of the unlock screen it prompts me for a pin or finger print, but if I don't touch the lock, just a simple swipe unlocks it.
Is there something I have pressed by accident which causes this?
https://youtu.be/67jmZpLGTMc
Kickasskev said:
I have a security issue, unless its me being silly.
I am fully stock unrooted.
I have never had any problem until today and I realised my phone unlocked without a pass code or finger print, I know this because I always wear rubber gloves and have to type the pin in to get into my phone, I do this day in day out and today after several unlocks it stopped asking for the pin.
I have uploaded a video showing what happens
It funny though because when I click the lock on the bottom of the unlock screen it prompts me for a pin or finger print, but if I don't touch the lock, just a simple swipe unlocks it.
Is there something I have pressed by accident which causes this?
https://youtu.be/67jmZpLGTMc
Click to expand...
Click to collapse
Check your smart lock settings. Is anything enabled?
adotkdotjh said:
Check your smart lock settings. Is anything enabled?
Click to expand...
Click to collapse
its not in use
Kickasskev said:
I have a security issue, unless its me being silly.
I am fully stock unrooted.
I have never had any problem until today and I realised my phone unlocked without a pass code or finger print, I know this because I always wear rubber gloves and have to type the pin in to get into my phone, I do this day in day out and today after several unlocks it stopped asking for the pin.
I have uploaded a video showing what happens
It funny though because when I click the lock on the bottom of the unlock screen it prompts me for a pin or finger print, but if I don't touch the lock, just a simple swipe unlocks it.
Is there something I have pressed by accident which causes this?
https://youtu.be/67jmZpLGTMc
Click to expand...
Click to collapse
I can't replicate the issue here - not sure what would cause this other than the smart bluetooth lock as suggested by the above poster.
Azarin said:
I can't replicate the issue here - not sure what would cause this other than the smart bluetooth lock as suggested by the above poster.
Click to expand...
Click to collapse
I haven't changed anything, I have cleaned the finger print sensor, no new apps installed.
Weird
Put it on charge and it's fixed it's self!
Sent from my Nexus 6P using Tapatalk

Intermittent Screen Touch-Response Problem - Software or Hardware?

Hello,
I have used an S4 for 8 months and it's great. I have just bought one for my dad, and it's also great BUT the screen doesn't always respond.
When it does respond, it is quick and sharp and there is no lag. However, when I am swiping through the home screens after a few goes it will ignore a couple of my swipes, and then continue. The same happens with tapping for selections. Interestingly, on the swipe thing, as I am swiping with my finger still on the screen during a non-responsive swipe, I can do this for as long as my finger is on the screen.... and in fact if I take my finger off VERY briefly and back on again, the problem does not resolve itself. But if I remove my finger (from the screen, not from my person) for a slightly longer period - say around a second - then it will be fine on the next few swipes.
I have tried:
- Battery out and back in
- Restarting
- Clearing cache
- Clearing RAM
- Closing applications
- Safe mode (problem still present)
- Swiping veeerrryyyy ssssllooowwwwlllyyyy
There aren't any weird apps that I can see. Memory is not full. Phone is refurbished.
Anyone got any ideas what the problem is and how to fix it please?
Many thanks in advance,
Nate
Which company refurbished the phone? Was it ever dropped or exposed to moisture? The imei in the phone matches the imei on the battery label?
If it is refurbished then chances are it's the screen or touch controller.
If you want to exclude software, then flash another firmware with Odin.

Fingerprint scanner erratic

The fingerprint scanner on my Essential phone several weeks ago started operating very erratically. I sometimes have to put my finger to the scanner four or five times to get it to work. Sometimes it won't work at all. This happens with the two separate fingerprints that I have stored. And, yes, my hands are clean, as is the fingerprint scanner.
When my phone was new, the scanner recognized my fingerprint on the first touch every time. I have rescanned my fingerprints several times, but it doesn't help.
What would cause the scanner to have trouble recognizing my fingerprint(s)?
Well, a dirty fingerprint scanner was going to be my guess because that's what happens to me, but you already checked that.
Have you tried resetting you fingerprints? Computing is not an exact science, maybe this will help.
A factory reset would be my next try. OTA's tend to slowly break things.
If this does not help, I don't know what could be wrong software-wise.
Porpet said:
Well, a dirty fingerprint scanner was going to be my guess because that's what happens to me, but you already checked that.
Have you tried resetting you fingerprints? Computing is not an exact science, maybe this will help.
A factory reset would be my next try. OTA's tend to slowly break things.
If this does not help, I don't know what could be wrong software-wise.
Click to expand...
Click to collapse
I have done ALL the things you have suggested. Sometimes the scanner won't read my fingerprints at all.
Well, I poured all my knowledge in the previous post.
For the factory reset, did you use the recovery for it or did you reflashed the fastboot zip from Essential? Because if there's any corruption in your system image, reflashing would be better.
You should try to log what happens when you use the fingerprint scanner. As far as I know there's two places that could be at fault. The hardware that generates the signal or the gapp responsible for its processing (don't know what is, maybe play store). If there's a signal every time you put your finger, the problem is probably on the google side and should be fixable by someway. If there's no signal when the scanner fails, then it's a hardware problem.
I don't actually know how to log the fingerprint scanner, but you'll probably need root.
I found pressing my finger a little harder fixed the issue! ?

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