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.
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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.
Related
the iphone switches the screen off when it goes to your head then turns back on when u take it away. is there a simple app for this??
Phone lacks the proximity sensor the iPhone has. Fortunately, it has a plethora of other useful features (a keyboard, picture messages, etc.)
pmow said:
Phone lacks the proximity sensor the iPhone has. Fortunately, it has a plethora of other useful features (a keyboard, picture messages, etc.)
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To add on to that the phone also goes to sleep when the call is connected and its just a matter of pressing the power button to get it to wake up again.
mine doesnt
Well mine has always went black when it goes up to my ear, but it would be nice if it came back on when removed from my ear.. although we dont have a proximity sensor, i dont see why it coulnt work with the gsensor/accelerometer. all it would have to do is go on when the phone is put back in the upright position
jok3sta said:
Well mine has always went black when it goes up to my ear, but it would be nice if it came back on when removed from my ear.. although we dont have a proximity sensor, i dont see why it coulnt work with the gsensor/accelerometer. all it would have to do is go on when the phone is put back in the upright position
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is there a setting for this?
is it possible to in fact use the light sensor? it obviously recognizes something when it turns off, maybe write up something saying "when dark below 'x' threshold, turn off screen. when bright above threshold, screen on. you would have to press the screen somewhat snugly to your face, but it sure beats nothing.
vader165 said:
is it possible to in fact use the light sensor? it obviously recognizes something when it turns off, maybe write up something saying "when dark below 'x' threshold, turn off screen. when bright above threshold, screen on. you would have to press the screen somewhat snugly to your face, but it sure beats nothing.
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It should be possible, but no one has done anything with the light sensor of turning it back on. I'm thinking that the polling of the light sensor turns off when the screen is in standby. If we can somehow get that to work in only incall (so it doesn't have battery issues), then it should work, when it goes from little light to more light, it should act as close to phone to far away from phone.
One could even use 2 sensors for it? Maybe the Light-Sensor and the G-Sensor. So when u bring the phone to your ear the light gets dark an the position upright. (the phone turns the screen off) And as soon as it get brighter and the position is change to normal (whatever that is ) it turns back on.
I reall would love to write something like that. But so far i have no clue of writing anything for that phone. Does anyone know a tutorial for writing software for a pda?
Thx
Come on guys this would be soooo great
jok3sta said:
Well mine has always went black when it goes up to my ear, but it would be nice if it came back on when removed from my ear.. although we dont have a proximity sensor, i dont see why it coulnt work with the gsensor/accelerometer. all it would have to do is go on when the phone is put back in the upright position
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Click to collapse
It doesn't actually do that when you put it up to your ear. It's a WinMo setting to put the phone in standby after a call is launched or received. What you preceive as behavior is actually a timing thing.
The guy from pocket shield managed to combine these two sensors, g-sensor and light sensor, to work together as locking/unlocking behavior.
maybe some g-sensor and lumos code can handle this thing... and create one cab solution here...
if some one could write this code it would be an AWESOME addition to the Phone. I would personaly love this as im sure many others would.
Thanks.
this is a bit late, but here's a cool app that i've found...
http://forum.xda-developers.com/showthread.php?t=488991
no its not too late. if people look around they would have found it.
aonavy said:
the iphone switches the screen off when it goes to your head then turns back on when u take it away. is there a simple app for this??
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Click to collapse
searching is your friend
http://forum.xda-developers.com/showthread.php?t=488991
warri said:
searching is your friend
http://forum.xda-developers.com/showthread.php?t=488991
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reading is your friend..look at the dates posted
Just curious...in the TD1, I used S2U2 to avoid accidental touches to the screen but as the TD2 already has the side to answer/end .. what do you use now?
I'm having a few issues I did when I got the first diamond where if someone calls, or you call out via bluetooth, the phone screen turns on
Usually end up hanging up on someone when I call them because the screen touches the pouch/pocket etc
I think there are a few apps to disable screen apart from hard keys etc - just curious what the majority use
akash_84 said:
Just curious...in the TD1, I used S2U2 to avoid accidental touches to the screen but as the TD2 already has the side to answer/end .. what do you use now?
I'm having a few issues I did when I got the first diamond where if someone calls, or you call out via bluetooth, the phone screen turns on
Usually end up hanging up on someone when I call them because the screen touches the pouch/pocket etc
I think there are a few apps to disable screen apart from hard keys etc - just curious what the majority use
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Is there a tweak for this in ACT? With my t pro when a call goes thru the screen goes dark almost immediatly, so I have the opposite prob as I need to use the kp to enter numbers sometimes. I could see where using bt it could be an issue tho.
I was wondering if the D2 came with a proximity or light sensor to disable/turn off the screen while it is against your face. I hate my Elfin.... I'm always pressing things with my face and getting into all kinds of menus.
My brothers Behold has sensors that shut the screen off. As of recently I have been pressing the power button to turn off the screen after I answer. Can't wait till mine ships on the 11th.
HTC Touch Freak said:
I was wondering if the D2 came with a proximity or light sensor to disable/turn off the screen while it is against your face. I hate my Elfin.... I'm always pressing things with my face and getting into all kinds of menus.
My brothers Behold has sensors that shut the screen off. As of recently I have been pressing the power button to turn off the screen after I answer. Can't wait till mine ships on the 11th.
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I asked the same question in another thread, and would be very curious about the answer, especially since gsmarena.com does not mention it as a feature, in comparison to the D1.
the iPhone has this feature...and I really can't imagine the D2 to do not have it. I hope I won't be surprised negatively.
i presume it does
Bearing in mind it automatically dims the backlight, and increases it. It must have one somewhere!.
Juggles said:
Bearing in mind it automatically dims the backlight, and increases it. It must have one somewhere!.
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I sure hope. I read that the Touch Pro2 has it so I'm hoping that the TD2 does also. If not that would be a shame. Good thing I'm getting used to pressing the power button right after I answer.
The D2 does come with a proximity light that dims the screen. If you look at the manual it's listed in the diagram specs page as well.
DaBountyHunter said:
The D2 does come with a proximity light that dims the screen. If you look at the manual it's listed in the diagram specs page as well.
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Click to collapse
Sweeeet!!!
DaBountyHunter said:
The D2 does come with a proximity light that dims the screen. If you look at the manual it's listed in the diagram specs page as well.
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Click to collapse
that sounds really great! but does it mean that it's inactivated too? dimming is indeed good, especially in the dark not to have a glowing ear - but i was wondering if, with the dimming, comes the inactivation of the screen too, in order to avoid accidental pressing of buttons with the ear/face.
Hiya folks. Running CM10.1 stable on my targa (aka Droid Bionic). It was beautiful except for lack of nav dock support, a problematic Google Now (different problem, with workaround), and this particular problem, which I hope someone know what I am talking about...
When a call comes in and I answer by the slider, the screen goes black, whether or not I held the phone up to my head.
I cannot turn the screen back on. None of the buttons seem to do anything, though backlight for the 4 hard buttons does turn on indicating that some command was received by the touchscreen. Not even the power button will bring the screen back during the call.
If the other party hangs up, the phone goes back to normal.
With screen off, I can't hang up.
I can hang up if my Bluetooth headset was connected and I hang up with that.
I've searched all over and this issue seem to be a pretty popular issue last December across all CM 10 builds. However, I don't know if this was ever resolved for this build.
I can't find an option in the ROM to just flat "turn off face proximity detection" either. Or in any way to "tweak" it.
CPU-Z says my proximity sensor is working, so I guess it's just not calibrated properly for the dialer?
Can we get a "special hidden tweaker" much like the light sensor tweak for the auto-brightness levels?
Figured it out. It wasn't CM. It was Screebl and the stupid orientation sensor, and how the Launcher is fixed to portrait mode.
I think I had my phone laid down and it's at a diagonal so it's in landscape mode, and the phone's fine with that when it's just showing contacts. Screebl kicks in and determines that landscape, phone orientation says stay on, so screen stayed on. It was set to turn off the screen IMMEDIATELY when the orientation goes out of "viewing range". (Saving batteries, ya know).
When the call was answered, Screebl should have turned itself off (i.e. ignore input while call is in progress). But it didn't. The "answer the phone" screen flipped the display back to portrait mode. The phone, still laid flat, in "landscape", is now "out of viewing range", and Screebl turned off the screen.
Strange interaction among the various apps, yes.
I'm still trying to figure out how to make my Bionic, with extended battery last the whole day. Juicedefender Ultimate somehow just keeps turning the screen back on every X seconds (taking root control for SOMETHING) and Wakelock detector says the phone is not going into enough deep sleep (kinda like me, hahaha)
I have the regular S10 and noticed that the proximity sensor doesn't seem to be working for AOD. Based on some quick searching around a few sites that appears to be a global issue. So as of now if I cover the front sensor or put my phone face down AOD continues to stay on screen. I assume that should turn the screen off though?
The other issue I found is with the Edge Lighting. I have it set to Always show. But it won't show the Lighting when my screen is off. I doesn't matter if I have AOD on or off. I can hear notification sounds but my screen will just stay off.
Is anyone else having these issues? Any thoughts or suggestions?
Both issues are known, but Samsung still didn't respond to them.
The proximity issue is a really annoying bug apparently, I often find it very hard to listen to WhatsApp Voice notes since the Screen just won't turn off the first 3-4 seconds. It's the same with regular phone calls, my screen only goes off after pressing the S10 really hard against my ear.
And no, I don't get edge lighting as well when my screen is off even I turned everything on. I hope samsung will fix these issues asap.
Thanks for the reply and info. I really hope Samsung fixes these issues soon. They are pretty big bugs in my opinion.
Same issues here and it also results in insane battery drain since the display turns on in pocket.
I figured it would be best to report it so they feel the heat so i called Samsung support here in Sweden today, the guy i spoke to thought it might be software error and if that's the case a fix will be released soon enough.
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.
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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.