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hello everybody i have lg g5 H850 i noticed this problem with always-on display (the clock is displayed incorrectly and the screen wont respond until i put my hand on the light sensor so the always-on feature disappear) , all i want to know if this is just a bug or something else
and thanks for help
Sounds buggy, I had an issue a few times where it took a LONG time for the screen to light up/unlock when I had Always On on. Others said this could happen if it stayed in your pocket a long time.
Eventually I turned off Always On, mostly because for me the battery drain was quite noticeable. With it off the battery feels totally fine, with it on it's kinda like, wow, why am I down to half already?
Display backlight is not working of a sudden even when i keep the brightness at max and second screen is working but the display is not working with good backlight ! I just took the phone from my pocket and what i seen is the display is dim ! Display is so dim even when the brightness is kept at full and i dont know how this happenned and someone tell me the way to solve this problem ! Screen is very dim even when i adjusted the brightness level at max and i even tried formatting phone but the issue remained same
Hi this also just happened to me. Image is working but no brightness in screen except some bright ess in top right corner. Phone overheated a couple kf times and shutdown after this initially happened and consumed 2 full batter chages in minutes. Now the heat and battery problem is gone but screen still dark. Any ideas
Hi guys!
I`m having the very same problem. Back light of the main screen is gone, and it doesn`t matter how I adjust it, it is always dark.
Have you guys solved your problem already? Any ideas?
Marcos
Having the same issue as of yesterday, been Googling possible reasons and it seems the 'backlight controller' has malfunctioned and the entire screen needs replacing (allegedly). Considering a new screen costs almost as much as the V10 itself on ebay these days I'm going to be trying to take mine apart to see if an easier fix is possible, it is more than likely there isn't, but I at least have to try. Let me know if any of you guys have any luck in repairing your phones
Revilo61 said:
Having the same issue as of yesterday, been Googling possible reasons and it seems the 'backlight controller' has malfunctioned and the entire screen needs replacing (allegedly). Considering a new screen costs almost as much as the V10 itself on ebay these days I'm going to be trying to take mine apart to see if an easier fix is possible, it is more than likely there isn't, but I at least have to try. Let me know if any of you guys have any luck in repairing your phones
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Update: Having replaced the screen with a new replacement screen, I am still having the same issue, indicating an issue with either the mainboard and/or the chipset. Can't really go much further with this it would seem so unfortunately I don't think the issue has any DIY fix...
Sorry guys... RIP my V10
phelanpw said:
Hi this also just happened to me. Image is working but no brightness in screen except some bright ess in top right corner. Phone overheated a couple kf times and shutdown after this initially happened and consumed 2 full batter chages in minutes. Now the heat and battery problem is gone but screen still dark. Any ideas
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Click to collapse
I have Same problem,, Any solution ? please help me
My LG70 just did this for a few minutes
My LG70 just did this for a few minutes. Scared me to think my phone was dying. Restarted, still the same. While I was googling it, the screen came back on. Hope it stays that way. Really strange to take it out of my pocket and only have the screen lit in the upper right hand corner. I hope this wasn't a preview of things to come. Love this phone and want it to last!
Brand new V30, just opened yesterday. Everything is running well except for a weird white flicker on the AOD. It's horizontal, from the edge in, about a sixth of the way across the screen. It doesn't flicker when anything else is on the screen but the AOD.
Any ideas?
Here's a video of the issue
https://imgur.com/a/QNioxAk
Thanks!
I would replace the phone, thats is 100% not normal, i have had my phone for 4 months now and this has never happened to me. Just to rule it out you dont have any screen overlay apps running right,?
edit: also a factory reset wouldn't hurt.
Does this also happen in low brightbess?
Looks similar (just in very very small) like what my display had after i crashed with my bike ?
I forced gpu rendering in developer options and changed the aod display to the normal clock and then back and it seems one of those two things fixed it. will keep an eye on it though.
Came back briefly this morning. will continue to monitor.
I got it on eBay which makes returning/warranty stuff a little more annoying than usual.
sometimes the indisplay Fingerprint sensor stops working at all.
The display wont recognize any touch and stays black.
If i push the Power button it starts working again.
This happens sporadically, 1 -3x a day
Did anyone had the same Problem?
Any suggestions?
Thanks for reading....
No one?
kamueone said:
No one?
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I haven't seen this problem. I use face unlock along with it and it usually recognizes my face before I can even scan it.
When the screen is black, you can put your finger on the display and some glowing circle Appears. This does not appear to me at all. The screen just stays Black.
Thx for the information.
kamueone said:
When the screen is black, you can put your finger on the display and some glowing circle Appears. This does not appear to me at all. The screen just stays Black.
Thx for the information.
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Maybe your fingerprints got erased somehow? Does your phone display a fingerpring icon on the screen a second after you turn the screen off?
Sent from my LYA-L29 using XDA Labs
Yes the second I turn if off it shows a fingerprint sensor. Just after a while it won't toggle the sensor if I touch the display. It's like the fingerprint sensor is deactivated. The second I turn the display on manually it appears again.
Hello! I've got the p20 pro and now I'm testing mate 20 pro. Sometimes I'm not able to unlock the mate with my fingerprints at all. Same finger. The p20 works perfect, just touch and unlock. Mate sometimes I have to touch it 3-4 times before it unlocks , sometimes it doesn't unlock at all? Is that normal? The display was exchanged already because of this issue.
I believe you guys are not the only one. This on screen finger print is not reliable. I guess because they are new and will improve over time. Personally I just use face recognition than finger print. They are a lot more faster and accurate to unlock.
I know it's an old thread but it's happening to my M20Pro right now! It's awful! The screen is protected by a tempered glass made by Spigen (maybe this glass has issues?). I reconfigured the fingerprint and I touched almost 50 times until the phone captured the fingerprint! What's wrong with that sensor?!
I had problems with glass protector, if you can get plastic film it is fine, glass you will have problems....this was my finding
Possible brightness/proximity sensor issue
kamueone said:
sometimes the indisplay Fingerprint sensor stops working at all.
The display wont recognize any touch and stays black.
If i push the Power button it starts working again.
This happens sporadically, 1 -3x a day
Did anyone had the same Problem?
Any suggestions?
Thanks for reading....
Click to expand...
Click to collapse
If you still have this phone and problem: I have a P30 Pro, and/but the reason I write here is because our phones share the fingerprint technology, and I didn't find anyone mentioning this problem regarding P30 Pro. So:
I have the same problem - seemingly sporadically the fingerprint sensor (or screen) wont react until I press the power button. Then I noticed that when the brightness/proximity sensor (located near the top right on the P30 Pro, and next (right) to the upper speaker on Mate 20 Pro) was covered, the screen would get unresponsive. I guess this is by design, to not accidently let your phone come to life in your pocket. The problem was/is that the proximity (?) sensor is way too sensitive - any obstruction at about 2 cm (0.8") above the sensor(s) will trigger this behaviour. I also think it can be triggered under other circumstances; I had som weird fingerprint/screen behaviour in a store with a high and very dark ceiling, but I have to test this again, so don't take my word for it.
Anyway - if anyone is having sporadic problems - see if this could be a reason.
Edit: Well, sometimes my screen is just totally unresponsive even without sensors blocked, so ... I noticed it a couple of times after digging my phone out of my pocket, suggesting it could still have something to do with the sensors turning the screen (functions) off. I'll try to see if I can make it behave the same way in other scenarios.
I have also been experiencing similar problems on my mate 20 pro, But mine is more of an accuracy problem. sometimes its on point and registers instantly. and other times it just doesnt at all.
However i have noticed that in extremely bright weather i have more issues, fingerprint doesnt read at all, and face ID is also doesn't. My finger print issues have started only after EMUI 10.1, so i suspect that it could possibly be a software related issue
I've had S10, two S20's and now S21. They all have one thing in common... The fingerprint sensor does not work. I would guess my fingerprint success rate at about 20% accuracy. My S21 fingerprint sensor fails the first time every time. No matter how many times I re-enter my fingerprints. I thought the new fingerprint sensor in the S21 would be better, it isn't.
By accident, reading Flipboard, somebody posted a story on how to speed up android phones. I did what the article recommended. My phone did indeed seem faster, but there was an additional benefit, my fingerprint sensor went from 20% accuracy to well over 90%. Works almost every single time now.
Make sure developer mode is enabled (go to settings > about phone > tap build number a few times).
Go back to settings, at the bottom will be developer options > drawing section.
Three entries;
Window Animation Scale
Transition Animation Scale
Animator Duration Scale
All settings are default 1x.
Change all three settings to either .5x or zero.
Enjoy!
Sorry, but this solution doesn't make any sense.
Fingerprint on my S21 works great. Since dy one
goTouch said:
Sorry, but this solution doesn't make any sense.
Fingerprint on my S21 works great. Since dy one
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Oh, I guess that means mine works great too. And, nobody else has ever had a problem with the Samsung fingerprint sensor. Got it.
I mean, the animation scale has nothing to do with the fingerprint sensor. So it's not that his works great and yours doesn't, but it's like saying you can fix your car's engine if you just eat 3 extra apples per day. Nothing to do with one another.
What exactly is the reasoning behind how this helps the fingerprint sensor? and what exactly is it doing? Are there any downsides to this?
Like I was saying, I changed the settings just out of curiosity because the originator of the article mentioned that the changes make your phone appear to run faster. Nothing was mentioned about the fingerprint sensor. But, after making the changes, I immediately noticed that my fingerprint sensor started working. It was very dramatic as my sensor would fail the first time every time, and maybe 50% of the time on the second attempt. It was not unusual for me to have 5 failures in a row, locking the sensor for 30 seconds, multiple times a week.
My sister has a N20 Ultra and her sensor was so bad she quit using it. I contacted her about changing those settings, which she did, and her sensor started working too. This isn't my first rodeo, I've had a history with Samsung and their under display sensors. Mine has never worked going back to the S10.
I can't explain why changing these settings affect the sensor, but they do. I just changed back to 1x and my fingerprint sensor started failing just like it always has. Changed back to .5x and it starts working again. Sometimes I get the sense my sensor is not actually attempting to read fingerprint, just fails repeatedly. My guess is because the screen draws animations faster, the fingerprint sensor animation is faster too. Maybe that has something to do with it? So, analogy of car engine and apples isn't applicable. There might actually be some connection here.
Bottom line, it takes 30 seconds to change settings so you can easily do it and revert back just as quick. There seems to be nothing to lose, so...
I've noticed a substantial decrease in battery life with the changes from 1x to .5x. I reverted back to 1x and redid my fingerprints, once focusing on the center of the sensor and then a 2nd entry for the same finger focusing on the edges of the sensor. I'm going to have to live with this until the next non-Samsung phone comes along that I want to try...
Animation sucks up cpu, which slows down fingerprint.
No animation is best, what do I need fancy effects to tell me what I'm already doing lol
This entire thread reads like an April Fools joke.
This is the first time I am using on screen fingerprint reader. Absolutely hated it. However, over the days I have developed muscle memory and my finger goes to the correct spot. My accuracy went from 40 to 90% in the last month or so.
There are few things that can be done to improve finger print reader
- Use both the thumbs in one fingerprint
- Scanning along the edges of the scanner location.
THere are you tube videos that explain this in detail.
Additinal tip. I have enabled lift to wake and faceunlock as well. This has helped me faster unlock pretty much every time i pick up the phone.
PS: To me on the screen reader is more of a gimmick, it will take a few more generations to get this working very well for everyone.
There is space near the camera on the back where samsung could have place the reader.
This will give you additonal finger gesture features. Like in note 9 you can pull down and push up the norification bar and so on. ANyways this is a lost cause.
Gopa
Techvir said:
There are few things that can be done to improve finger print reader
- Use both the thumbs in one fingerprint
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Click to collapse
Don't do this. Scan each thumb twice, and it will work better. I usually do my right thumb 3x, my left thumb once, and my pointer finger once. Works perfectly for me, I'd say 99.9% of the time.
entropism said:
Don't do this. Scan each thumb twice, and it will work better. I usually do my right thumb 3x, my left thumb once, and my pointer finger once. Works perfectly for me, I'd say 99.9% of the time.
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Oh wow, how did you manage to register 5 fingerprints? I can only register a maximum of 4.
yeah_mike said:
Oh wow, how did you manage to register 5 fingerprints? I can only register a maximum of 4.
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Sorry, I have a **** ton of phones laying around. Some let you scan 5 times, others 4.
robnitro said:
Animation sucks up cpu, which slows down fingerprint.
No animation is best, what do I need fancy effects to tell me what I'm already doing lol
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I HATE animations. They were cute maybe the first two times but after that I was done with them. And having to enable dev options is stupid. I use several apps that either complain about dev options being enabled or just plain won't run at all. No animations should be a normal selectable item like wallpaper.
overclockxp said:
I HATE animations. They were cute maybe the first two times but after that I was done with them. And having to enable dev options is stupid. I use several apps that either complain about dev options being enabled or just plain won't run at all. No animations should be a normal selectable item like wallpaper.
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To be honest, I thought I was the only one who truly hated animations. These seem extremely unnecessary and a little bit tacky.
yeah_mike said:
Oh wow, how did you manage to register 5 fingerprints? I can only register a maximum of 4.
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Same here, I actually thought it was impossible to register 5 fingerprints, considering that I’ve been only able to do 3 or 4 max.