So I bought this phone yesterday, stock and no third party app. did a factory reset inserted the simcard and recieved a sms. when screen was off, a green small notification was blinking on left upper part of screen (something like what third party apps like aodnotify do but it was better). I was amazed that samsung finally did something to fill the void of an actual notification Led. but after my second factory reset (after a 450 mb update) the feature was gone!!
I searched every where for it. tried different settings in Aod and edge light and... nothing
can anyone explain this to me? could it be an experimental feature on my stock firmware that was removed from latest update?
thanks in advance
I don't understand it either. I don't have it on screen off but I have it when I charge the phone or answer a call. Weird behavior.
That's being used as a proximity sensor I believe to turn the screen on and off during calls. It might also disable the screensaver/always on mode if the phone is face down.
thanks for the answers.
Edit: that's the proximity sensor as you said which lights up during calls, but I don't know why it was lighting up when there was no app running and the screen was off. odd behavior! perhaps accidental touch detection was acting incorrectly.
Related
There seem to be several proximity sensor threads but I've done a search and have not found anyone that is having this same problem.
When I make a phone call, my screen turns off right away. I can only get it to come on by pressing the power button or tilting the phone so that a bright light or glare is on the proximity sensor or light sensor. This is a pain. I use my power button to end calls but I have to disable that option. Otherwise, any time I need to use touch tones for an in-call menu, I hang up or spend a minute tilting my phone or holding it up to a light bulb. I know there are workarounds that I could be using but I am wondering if my proximity sensor or light sensor is malfunctioning or if it is a software issue.
Also, when using the visual voice mail app, my screen goes black but not off. I can still see the status bar. It happens as soon as I tap the play button and works just fine after my voice mail stops. This is likely unrelated but I can't be sure.
Thanks in advance to anyone that helps!
Running stock and unrooted with no physical damage or obstruction of sensors. I have tried a factory reset... twice.
I'm having a weird issue with mine as well. Mine is a little different though. If I need to make a call that requires to enter # prompts and as soon as I move the phone away from my face the keypad will start beeping on the other end so the prompts will always get invalid responses. While on the phone and I move the phone away from my face for any reason, the person on the other end will hear the beeping.
mokash34 said:
There seem to be several proximity sensor threads but I've done a search and have not found anyone that is having this same problem.
When I make a phone call, my screen turns off right away. I can only get it to come on by pressing the power button or tilting the phone so that a bright light or glare is on the proximity sensor or light sensor. This is a pain. I use my power button to end calls but I have to disable that option. Otherwise, any time I need to use touch tones for an in-call menu, I hang up or spend a minute tilting my phone or holding it up to a light bulb. I know there are workarounds that I could be using but I am wondering if my proximity sensor or light sensor is malfunctioning or if it is a software issue.
Also, when using the visual voice mail app, my screen goes black but not off. I can still see the status bar. It happens as soon as I tap the play button and works just fine after my voice mail stops. This is likely unrelated but I can't be sure.
Thanks in advance to anyone that helps!
Running stock and unrooted with no physical damage or obstruction of sensors. I have tried a factory reset... twice.
Click to expand...
Click to collapse
It sounds like your issue is hardware related. Take it to a sprint repair store and have it exchanged.
mrwicked said:
I'm having a weird issue with mine as well. Mine is a little different though. If I need to make a call that requires to enter # prompts and as soon as I move the phone away from my face the keypad will start beeping on the other end so the prompts will always get invalid responses. While on the phone and I move the phone away from my face for any reason, the person on the other end will hear the beeping.
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Click to collapse
You issue also sounds hardware related. The touchscreen sounds like it is going out. It might be the dialer app but I doubt it. Speaking from experience of course.
I went to Sprint store yesterday and they gave me a replacement for mine.
insuusvenerati said:
It sounds like your issue is hardware related. Take it to a sprint repair store and have it exchanged.
You issue also sounds hardware related. The touchscreen sounds like it is going out. It might be the dialer app but I doubt it. Speaking from experience of course.
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Click to collapse
Thanks I will head to a store and follow up here for anyone else. Thanks again.
I would check the sensor settings and play around before trying the store. But if that doesnt work it prob is hardware issues
I've had this problem with 2 different roms now (PureNexus, Chroma) on a few kernels (stock, ElementalX) so I'm not sure whats causing it but I need a fix. In a call, many times the screen just stops responding. Sometimes I can turn the screen on/off using power button and its fixed. Other times nothing works and I have to do a hard reboot by holding down power key since nothing else works on screen.
This is on latest version of the rom/kernels. Any ideas?
When you say its stops responding, do you mean it goes dark and nothing displays on screen? Or that its on with everything displaying but tapping it does nothing?
Only when in contact with ears?
akholicc said:
When you say its stops responding, do you mean it goes dark and nothing displays on screen? Or that its on with everything displaying but tapping it does nothing?
Click to expand...
Click to collapse
Its on, touch doesn't do anything. The phone is working since volume keys bring up the UI but you can't do anything. Also proximity sensor works, it turns on/off as I bring near ear. I don't have a screen protector.
ECrispy said:
Its on, touch doesn't do anything. The phone is working since volume keys bring up the UI but you can't do anything. Also proximity sensor works, it turns on/off as I bring near ear. I don't have a screen protector.
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Click to collapse
I'm having a similar issue from the last month.. I'm on DP5
when i get a call most times the screen is off.
To answer the call i've to put on the screen, unlock the phone and then go to the heads up notification and choose answer there..
waiting for nougat final hoping it'll fix this.
Tried fiddling around with notifications importance setting.. it helped a little but then there was the annoying heads up showing along with the regular incoming call screen.
Sometimes (very rarely, has happened twice) the screen just remains black and will only work normally after a reboot.
Anybody have any suggestions?
I was having similar issues, also on the Developer Preview and I ended up noticing that the phone app was blocked from showing any notifications despite the fact that I never set it that way. I would hear the call ringing but would never see the screen to answer. Just changed that setting and everything was back to normal. Perhaps something is causing the phone app to fail to show notifications for you as well.
Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
I would say it's a warranty job, just tried turning my brightness to zero and you can still see the screen.
I did have a similar problem on an old note that had root and custom rom though but I had somehow set the volume rocker to control brightness and it had lowered itself to minimum in my pocket
KEVIN88GT said:
Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
Click to expand...
Click to collapse
Try pressing and holding Volume down and power button for 5 to 7 seconds to force power off, then try to boot to download mode Volume Down + Bixby + Power button and see if the download mode screen shows......if not then probably a bad screen.
Sent from my God Mode 8
Tried it......nothing.....warranty job it is.... Bummed to have some refurnished phone in exchange for a Brand new 900 dollar phone just a few months back?
KEVIN88GT said:
Tried it......nothing.....warranty job it is.... Bummed to have some refurnished phone in exchange for a Brand new 900 dollar phone just a few months back?
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Click to collapse
Yeah that sucks, i can imagine..... i too hate the idea of refurbished units being swapped for warranty....bs, should be brand new unit!
Sent from my God Mode 8
so I had it replaced under warranty through T mobile. Refurb phone will come in today. One quesion. Should I let the Tmobile techs do the data/settings transfer from old phone to new one or just do everything myself from scratch (which will obviously take longer).
This happened to my phone twice for the past month or so. (both in Nougat and Oreo - Non rooted) Black screen but phone seems to be responding -- I can receive calls and notifications etc -- And force reboot doesn't fix it. I've also tried drainging the phone when it first happened to me but doesn't work. HOWEVER, it gets okay so randomly. Like I just left it for couple of hours and it just worked when I hit the power button.
I did tried bringing the device to Samsung but what they did is to just manually upgrade/reset the software in their end which I could have done in my part but I just let them do it. They told me to come back if it happens again which is kinda BS.
I can conveniently say this is a Hardware issue. I will wait for it to happen again on my phone and request for a replacement. Phone is 4 months old when it first happened.
I have the same issue with blank screen but phone is working.
It started couple of weeks after i dropped my phone on the ground. There is black dot on my screen and broken glass but phone was working ok and was still pretty usable. But then it started:
Display works fine but when i switch display of, lock the phone or display switched because of its timer it didn come switch on... But phone works, i can use it with blank (black) screen.
I had to do force restart so the display will turn on with samsung logo and booting screen, and keep on till another switch of.
I was trying every setting (but no hard reset) and then i found a little hack:
When you turn on the "Always On Display" (AOD) function you can let the screen switch off or do it manually, wait for 1-2 sec and always on display will come up to the screen. Then when you press home button or lock button screen will swtich on normally. YOu can type pin and use phone witch screen working. But when you try to unlock from "AOD" with your finger or your eyes it unlock but with screen black.
So i was using it like this. everytime you need to wait second untill AOD comes up, but it was working fine.
Problem nu 2 is that now it stop working, AOD is working but when i want to switch screen on from AOD it shows black screen and phone is working on blind.
So everytime after my screen goes black or to AOD i have to unlock the phone blindly and "Force restart" it and have to keep waiting until boot, and then have to never let phone to screen of.
Its not usuable.
¨
Now what do you think? Is it hardware problem or software problem? Because screen is working but randomly. The black dot of dead pixels on the screen is getting slightly bigger in time (about 1 year) but its like 1.5cm round. Maybe this cause the problem? And why hack with AOD was working for half a year and then stoped working? There wasnt any updates right before, but i tried to install some apps (non display related) so ill try to uninstall them.
Hawe you got any idea if i can repair it on my own even if i loose the waterproofability?
Or can it be replaced for free if i have a warranty? (I dont have insurance)
Thanks for your tips guys.
Reprocrastinator said:
I have the same issue with blank screen but phone is working.
It started couple of weeks after i dropped my phone on the ground. There is black dot on my screen and broken glass but phone was working ok and was still pretty usable. But then it started:
Display works fine but when i switch display of, lock the phone or display switched because of its timer it didn come switch on... But phone works, i can use it with blank (black) screen.
I had to do force restart so the display will turn on with samsung logo and booting screen, and keep on till another switch of.
I was trying every setting (but no hard reset) and then i found a little hack:
When you turn on the "Always On Display" (AOD) function you can let the screen switch off or do it manually, wait for 1-2 sec and always on display will come up to the screen. Then when you press home button or lock button screen will swtich on normally. YOu can type pin and use phone witch screen working. But when you try to unlock from "AOD" with your finger or your eyes it unlock but with screen black.
So i was using it like this. everytime you need to wait second untill AOD comes up, but it was working fine.
Problem nu 2 is that now it stop working, AOD is working but when i want to switch screen on from AOD it shows black screen and phone is working on blind.
So everytime after my screen goes black or to AOD i have to unlock the phone blindly and "Force restart" it and have to keep waiting until boot, and then have to never let phone to screen of.
Its not usuable.
¨
Now what do you think? Is it hardware problem or software problem? Because screen is working but randomly. The black dot of dead pixels on the screen is getting slightly bigger in time (about 1 year) but its like 1.5cm round. Maybe this cause the problem? And why hack with AOD was working for half a year and then stoped working? There wasnt any updates right before, but i tried to install some apps (non display related) so ill try to uninstall them.
Hawe you got any idea if i can repair it on my own even if i loose the waterproofability?
Or can it be replaced for free if i have a warranty? (I dont have insurance)
Thanks for your tips guys.
Click to expand...
Click to collapse
If you're under warranty it will likely be a free repair, unless they find other damage. Like moisture damage.
As far as fixing it yourself, it's just about as cheap to have Samsung do it than it is to buy the parts yourself. It's $229 for Samsung to do it, and you'll maintain the water resistance rating.
same has happened to me
KEVIN88GT said:
Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
Click to expand...
Click to collapse
This has just happened to my note 8 too. I was about to update it and had started it. set my phone down and picked it up and phone screen is black but can hear the haptic feedback.
I can only see the lock screen and the notifications. Everytime I try to unlock my phone I only get to see a glimpse of the notescreen and then the screen turns black. Even when I try to go to camera through the lock screen the screen goes black too. When I charge my phone it heats up so I haven't really charged it as well. Has this also happened to anyone? It seems as if the phone's sensitivity still works in all places but when I unlock it the screen just goes black.
I also have problem of freezings and always rebooting. Tried soft and hard resets/factory reset. Still same problem. This phone has hardware issue. Do not buy.
I realize this thread is quite old but I have this exact same issue now. I have managed to discover some other information by playing around with various settings which are noted below. To begin with, I was able to used the AOD hack posted above for a while but it no longer works. The only way I can get my screen to come back is with a soft reset - but as soon as the screen times out or i turn it off, it goes black, with or without AOD enable. All the on screen buttons still work as well as the haptic feedback - I just can't see anything.
Now on to what I have found:
One thing I have found is if I turn off adaptive screen brightness and crank the brightness slider to the right, when it goes black I can faintly see some of the buttons - enough that I can turn the phone off or restart it from the power menu (If I switch the default setting to night that also helps to see the buttons a bit better). Also, if I enable night mode I can also see the brightness slider faintly but when I slide it left, it just makes the screen completely black and when I slide it right, it only returns it to the very faint brightness level.
So at this point I am stuck. To summarize the issue:
1. When the screen either times out or turns off, it is still "alive" but goes black. It will not return to normal brightness.
2. Turning off adaptive brightness and cranking brightness slider to right allows you to see faint buttons after screen times out but won't return to normal brightness.
3. Enabling night mode helps to see the faint buttons, in particular the brightness slider a bit better. However the screen still cannot return to normal brightness.
4. The only way to get the screen back to full brightness (albeit temporarily until the next timeout) is to turn off the phone or reset from the power menu; or soft reset holding volume down + power simultaneously.
Hopefully someone else has figured out a way to recover this. I am on Android 9 with Samsung UI 1.0
Phone is completely stock, never rooted and completely out of warranty.
I'm developing app for WiFi calling.
I want to turn off screen when proximity sensor reports "near". It work fine on other phones but on S10 phone looks like proximity sensor is not even activated - there is no white dot blinking on top part of the screen.
If I make normal call or use WhatsApp dot starts blinking as soon as I start the call.
So what do I have to do in my app to make that white dot blink on Samsung S10 phone?
I'm not quite sure, but there seems some kind of known issue with the proximity sensor that dates back to at least March. Screen coming on while in your pocket, screen not lighting up when pulled back from your face during a call, screen randomly coming on while on a call, despite it being pressed against your ear/face. I've tried everything suggested and the issues remains, unfortunately I'll be returning my S10+ and going back to my S8+, pretty disappointing for a $1,000 phone.
It's always recommended to do a factory reset after an update, problems happen not only on Samsung, even on iPhones, not a big deal.
Try this?
https://forum.xda-developers.com/showthread.php?t=2568003
TheNurd said:
I'm not quite sure, but there seems some kind of known issue with the proximity sensor that dates back to at least March. Screen coming on while in your pocket, screen not lighting up when pulled back from your face during a call, screen randomly coming on while on a call, despite it being pressed against your ear/face. I've tried everything suggested and the issues remains, unfortunately I'll be returning my S10+ and going back to my S8+, pretty disappointing for a $1,000 phone.
Click to expand...
Click to collapse
During normal phone call my sensor works as it should.
I just don't know how to activate it in app that I'm developing.
On all other types of phones this is not a problem, since this sensor is always on. It is just S10 series that have some kind of special sensor which have to be activated. You can see white dot (left form the front camera) blinking during call... that means that the sensor is activated.
The only other app I saw apart from phone app that can activate this sensor is WhatsApp. It activates it during call or during listening to voice messages.
I also checked Google Duo, Messenger Lite and Linphone app and none of these doesn't activate sensor. So it must be something that WhatsApp knows and others don't.
I also asked this on WhatsApp support, but I was ignored of course.
Do you find how to activate it? I have the same problem in my app and it looks similar on new Samsungs (I find it out on Galaxy Note 10)
Thanks for replay.
Hi
I'm in the UK and I recently bought an LG V40 128Gb Korean version - LM-V409N on Android 9/Pie.
There are a couple of things about it that are really annoying and I wanted to know if they are LG V40 features or bugs?
1. Screen goes black when making a phone call
When I use the phone dialler to make a call I type in the numbers and press the phone icon to make the call.
As soon as I press the phone icon the screen goes black and I have to press the physical unlock button on the right of the phone to be able to see the screen again and all the in-call options like 'dialpad', 'speaker' or 'end' call.
2. 'Always-On' display turns off in a dim light
I have the 'Always-On' (AO) display turned on in my settings, in my case it's just set to be the standard digital clock.
If I'm in a well lit area and lock the screen the AO display works as it should, however, if I'm in a dimly lit area and lock the screen the AO display does not come on.
Also, if I move between a well lit and dimly lit area the AO display comes on in the well lit area and turns off when I move into the dimly lit area.
Just to confirm, I'm not pressing anything on the phone during this time.
Finally, if I'm in a well lit area and cover the top of the phone with my hand (to mimick it going into my pocket) the AO display goes off when I cover the top of the phone and immediately comes back on when I uncover the top of the phone.
I can repeat both the above issues without there being a phone case on the phone potentially blocking a sensor and also the screen has been cleaned so I don't think any sensors are being affected by grease or dirt.
Both these issues are really annoying so could anyone confirm if these are intended features on all LG V40's or just bugs on mine?
Or any other info/ideas please?
Thanks
Yeah, the issue of the screen going black is a battery saving feature. There may be a work around utilizing the battery optimization exclusions in the Settings. There also is an app that I have seen suggested to alleviate this issue. As I don't use the AOD feature I can not advise a remedy.
Medevac1 said:
Yeah, the issue of the screen going black is a battery saving feature. There may be a work around utilizing the battery optimization exclusions in the Settings. There also is an app that I have seen suggested to alleviate this issue. As I don't use the AOD feature I can not advise a remedy.
Click to expand...
Click to collapse
Hi, thanks for the suggestion. I've turned off all the battery saving features/options but I still can't get rid of either of those features/bugs?
Can anyone else with an LG V40 confirm if they can reproduce either of these features/bugs?
After further digging around, I now think these issues are caused by faulty hardware on my V40.
I downloaded an app called 'Sensor Box for Android' from the Play Store which allowed me to test all the phone's sensors (accelerometer, light, proximity etc).
When I tested the proximity sensor it is not working/responding, so I believe that these issues are probably caused by the faulty proximity sensor.