Database Users

Weird light being emitted from proximity sensor? [Video]

http://youtu.be/8qKYJVnUzwI
I noticed a weird light being emitted from proximity sensor when I entered the stock Samsung messaging app. It looks like it could be an infrared light coming from the sensor, but it's faintly visible to the naked eye. I thought I would take a video of it to show what I'm talking about. It's more apparent in the video than what you actually see. You can see it yourself in a dark room.
Has this been addressed? Does anybody know why this is happening?

isnt it looking to see if you move the phone to your ear in the messaging app so it can do the call feature?

I noticed this on mine last night. It's not like that right now though

I have the Motorola Atrix and when I use the proximity sensor, it does the same thing, glows a very very dim red, only visible in a dark room. Guessing that's how that sensor works in a generic way.
Sent from my MB860 using XDA Premium HD app

You have the eye tracking on? I just assumed it was that.
SwiftKeyed on my Sprint Galaxy SIII...

Mine does the same thing. It's for the direct call feature for texting. If you turn direct call off in your motion settings you won't see it anymore.
Sent from my SCH-I535 using xda app-developers app

Doh... I feel silly for posting this now... Well, at least we have some sort of visual proof of it?

Haha no worries dude. Really easy to over look the little things! I was curious when I first saw it on mine as well.
Sent from my SCH-I535 using xda app-developers app

Wow I have never noticed this before, haha pretty cool
Sent from my SGH-I747M using Tapatalk 2

I don't think mine's ever done this before and I've enabled smart stay before.

i have that as well...noticed it a few days ago..didn't think much of it

It's direct call for texting. Really it's anything that uses the proximity sensor. Smart stay uses the front facing camera.
Sent from my SCH-I535 using xda app-developers app

Notification light?

Is the LED below the screen supposed to function as a notification light? I ask because I haven't seen it light up even once for anything. Not when charging, nor when there are new emails, messages, etc. Heck, does it work at all?
Sent from my Nexus 10 using xda app-developers app

Orbiting234 said:
Is the LED below the screen supposed to function as a notification light? I ask because I haven't seen it light up even once for anything. Not when charging, nor when there are new emails, messages, etc. Heck, does it work at all?
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
I see the notification light blink white when I have a new email from Gmail. Do you have Settings->Display->Pulse notification light enabled?
I guess you should make sure you have email notifications (do you hear sounds?) on as well.

I to have yet to see this notification light. I do have Pulse notifications enabled and yet nothing happens when charging even after the device is turned off and charging. I'm unlocked, rooted, stock, with CWM recovery.
Edit: I also do hear the notifications when receiving emails just not the light notification.
Sent from my SPH-L710 using xda app-developers app

Yes, my pulse notification setting is on. I get the audible tone that I have email but no light ever.
Sent from my Nexus 10 using xda app-developers app

You guys are not alone. There is another thread on this issue. Seems that the LED, for some of us, works sometimes but often does not work at all. There is an app called LED tester (free) that you can use to see what the situation is with your LED. Note that installing Light Flow is not a solution - when the LEDs are not working they will not be working under Light Flow control. So far I haven't been able to spot what triggers the LEDs to start or to stop working. Restarts seems to have no effect. With mine, when they work they work for a day or two then abruptly stop and stay stopped for a day or so.
A number of people seem to be affected by this but there is no indication yet whether this is a software bug (hopefully) or a dodgy hardware batch.

Mines been working since day one... Installed light flow and kept on moving
Sent from my Nexus 10 using Tapatalk 2

I've never seen the LED on mine, LED tester does nada! I'm hoping it's software but ultimately not too concerned, not a feature I care too much about.
Sent from my Nexus 10 using XDA Premium HD app

Where is the light supposed to show up?

My notification light works, alas on both the N10 and the GN it *never* blinks on the first notification it should report after a reboot. From the 2nd time onwards it works as intended.

Didn't even realize this had an led...so guess mines never lit up either
Sent from my GT-I9300 using xda app-developers app

The notification light only blinks when the screen is off and a notification is received...

craigacgomez said:
The notification light only blinks when the screen is off and a notification is received...
Click to expand...
Click to collapse
No crap....guess what it's completely random, mine worked just fine yesterday today...not working at all.

Fastnova007 said:
No crap....guess what it's completely random, mine worked just fine yesterday today...not working at all.
Click to expand...
Click to collapse
By default, the notification lights only show up when the screen is off... and the moment you power on and reach your lockscreen, they go off... in my custom ROM, I have an option to enabled the notifications lights when the screen is on as well...

dairymasta said:
Didn't even realize this had an led...so guess mines never lit up either
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
No kidding, I had to go look in the little book to see where the led even was!

I disabled it due to constant pulsing...mine works TOO good.

Looks like mine doesn't work. Even after using light works app. This may push me to exchange this now along with light bleed problem that is pretty visible.
Sent from my Nexus 10 using xda app-developers app

LED notification for charging

Coming from HTC Evo 3D, i've grown to love the LED notification showing red whenever the phone is being charge, and so far the only disappointment with my Nexus device is, that there's no idication from the LED wether the phone is being charged or if it's fully charged. I am simply wondering if it's possible to add that feature with a little application? If someone has done it before, could they please assist me.

Gan3b said:
Coming from HTC Evo 3D, i've grown to love the LED notification showing red whenever the phone is being charge, and so far the only disappointment with my Nexus device is, that there's no idication from the LED wether the phone is being charged or if it's fully charged. I am simply wondering if it's possible to add that feature with a little application? If someone has done it before, could they please assist me.
Click to expand...
Click to collapse
Light flow in the play store.
Sent from my Nexus 4 using Tapatalk 2

chrisjcks said:
Light flow in the play store.
Click to expand...
Click to collapse
+1
Light Flow is awesome for many reasons.
Sent from my Nexus 4 using xda premium

+2 light flow
Sent from my Nexus 4 using Tapatalk 2

I haven't used light flow on the n4 yet, have used on s3 its amazing the way it combines colours to give different colours!

+3 flow light

Light Flow is great... however is there any way to enable the LED while the phone is OFF and charging? Is that a purely hardware thing or does the kernel or bootloader come into play

TheByteSmasher said:
Light Flow is great... however is there any way to enable the LED while the phone is OFF and charging? Is that a purely hardware thing or does the kernel or bootloader come into play
Click to expand...
Click to collapse
Yeah, brick your phone and the LED will blink red when off.
Sent from my Nexus 7 using xda premium

Lol had that today. It was very scary. I thought oh **** I'm one of those guys that bricked a nexus lol.
Sent from my Nexus 4 using Tapatalk 2

I use Charging LED

LED light to blink more often?

Is there any way to get the LED light to blink more often? Like on galaxy s3 it blinks every 3 seconds..
(I guess Light flow could, any other option?)
EDIT: see post #6

Light flow in the Play Store

There has to be a way without an app. If that app can do it on stock odex roms, I'm sure it can be done. People are having slight issues with that app.. So I decided to back off from it
Sent from my Nexus 4

Completely stock, no. Custom ROM or an app that enables it, yes.
Sent from my Nexus 4 using xda premium

noodles2224 said:
There has to be a way without an app. If that app can do it on stock odex roms, I'm sure it can be done. People are having slight issues with that app.. So I decided to back off from it
Sent from my Nexus 4
Click to expand...
Click to collapse
People having issues must be user error. It generally works perfectly for me. Every now and then the LED doesn't blink when it should for some reason, but even that is rare and no big deal. Light flow is infinitely superior to stock.
Sent from my Nexus 4 using xda app-developers app

For anyone on CM10.1 go to setting/system/notification light and change Default to normal and normal.
It will then blink every like 2 secs.

Yeah, light flow is really the way to go. Which reminds me, I need to buy the pro version...

Anyone got the rear LED working with Lightflow?

Anyone figured out how to get the rear power button LED working with lightflow or similar? Lightflow controls the front LED nicely, and I've played with controlling the other LED's with it, but none of them work, and I'm not sure which is supposed to be the rear LED. It would be really cool to get it to flash for texts and such.

Are you referring to this or something more detailed?
Sent from my VS980 4G using AC Forums mobile app

mrstarzan said:
Are you referring to this or something more detailed?
Sent from my VS980 4G using AC Forums mobile app
Click to expand...
Click to collapse
I have that checked, but it doesn't do anything, at least for me. Front LED works great, no luck on the rear one. Does yours work? I'm on CM11

That's for "button back light" meaning the light behind the front buttons not "back button light". Big difference there.
Sent from my LG-G2 using Tapatalk

Thanks for clarifying. I actually wondered about that. But I couldn't figure out what difference it would make my checking it. I never have my phone facing down to really care what the light on the back button is doing anyway. Lol
Sent from my VS980 4G using AC Forums mobile app

nismology said:
That's for "button back light" meaning the light behind the front buttons not "back button light". Big difference there.
Sent from my LG-G2 using Tapatalk
Click to expand...
Click to collapse
Crap, I knew there was a reason I didn't originally have that checked. I'm dumb, lol.
Anyway, as far as the "non controled" LED's listed at the bottom, anyone have any luck getting them to work
I like having my phone upsidedown sometimes.

xian_online said:
Crap, I knew there was a reason I didn't originally have that checked. I'm dumb, lol.
Anyway, as far as the "non controled" LED's listed at the bottom, anyone have any luck getting them to work
I like having my phone upsidedown sometimes.
Click to expand...
Click to collapse
I had that working on my HTC DNA..yes it has also a back LED! But now on the G2 it seems that lightflow has no control on it
If anyone has a solution please share!

Lightflow should support it after the most recent update. Enable root mode and it should work
Sent from my LG-D802 using XDA Premium 4 mobile app

vPro97 said:
Lightflow should support it after the most recent update. Enable root mode and it should work
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Are you sure?? Is it working for you? Because I enabled the root mode, and it shows back led 1 and back led 2, so I enabled both of them but nothing light .... could you please explain step by step how it does work for you???

santacruzdz said:
Are you sure?? Is it working for you? Because I enabled the root mode, and it shows back led 1 and back led 2, so I enabled both of them but nothing light .... could you please explain step by step how it does work for you???
Click to expand...
Click to collapse
did you figure it out? if not, i think i can help you

kassy_ok said:
did you figure it out? if not, i think i can help you
Click to expand...
Click to collapse
Can you give me some help too? ;D
I'm on CM 11 and it seems like the light turns on when i get a call and SOMETIMEs when I get a text but thats it.
i would like the rear light button on the back to act exactly as if i was in stock.

Well I tried it out and bought the pro version of light flow and to say I'm dissapointed. The control of the back light does work but it doesn't pulse or pulse slowly on and off. the power button light just stays lit.
Sent from my LG-D800 using XDA Premium 4 mobile app

ddzado said:
Just tried one of the new LEDs I have control over...
It was the camera LED. Flashed myself in the eyes and then it rebooted.
#fail
---------- Post added at 04:56 PM ---------- Previous post was at 04:33 PM ----------
Which brings me to my next question.... anyone know what the light is called in the settings?
Click to expand...
Click to collapse
You have to go to settings go all the way down the page and it should be listed in additional LEDs as button blacklight. I enabled 1 and 2 because I think I enabled just one and half of the button lit up when I enabled both the button was fully lit
Sent from my LG-D800 using XDA Premium 4 mobile app

kassy_ok said:
did you figure it out? if not, i think i can help you
Click to expand...
Click to collapse
Yes, I did thank you...by installing ButtonLED apk, it works on the LG G2 by enabling the back light, however I'm curious about your solution??

santacruzdz said:
Yes, I did thank you...by installing ButtonLED apk, it works on the LG G2 by enabling the back light, however I'm curious about your solution??
Click to expand...
Click to collapse
Can you share the apk please?
Sent from my LG-D800 using XDA Premium 4 mobile app

xxxrichievxxx said:
Can you share the apk please?
Sent from my LG-D800 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Here you go...
http://forum.xda-developers.com/showthread.php?t=1958939
You have to intall the apk manually, it is not available on the market.

santacruzdz said:
Yes, I did thank you...by installing ButtonLED apk, it works on the LG G2 by enabling the back light, however I'm curious about your solution??
Click to expand...
Click to collapse
i did it using light flow, but only managed the keep the light always on (while screen is off), no blinking.
Sent from my LG-D802 using XDA Premium 4 mobile app

I used G2 Tweakbox, a Xposed module, it activates the rear led for a lot more notifications
Sent from my LG-D802 using xda app-developers app

kassy_ok said:
i did it using light flow, but only managed the keep the light always on (while screen is off), no blinking.
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I had the same issue...ButtonLed apk makes it blink....

santacruzdz said:
I had the same issue...ButtonLed apk makes it blink....
Click to expand...
Click to collapse
can you please share which version of the apk you installed.?
Sent from my LG-D802 using XDA Premium 4 mobile app