Develop Bugs

Little red light

Does anyone know what is the little red light that comes on occassional on the upper left part of the phone casing?
Just to be clear, its not the phone charging light, it is on the left hand side.
Sent from my HTC One X using XDA

If you call someone,you will see a red glow from the top left, this is where the proximity and ambient light sensor are housed.
Enable Face Unlock, then try to unlock your phone in complete darkness, you will see that little red light comes on to the left of HTC logo.
NotifierPro can cause it to remain on.

All of a sudden my proximity led is on consistently.
Any ideas why? I don't have any apps or processes open that would cause it.. at least I think I don't.

guttercow said:
All of a sudden my proximity led is on consistently.
Any ideas why? I don't have any apps or processes open that would cause it.. at least I think I don't.
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Click to collapse
It shouldn’t be ON all the time. There must be some background app causing it, if not try restarting the phone.

Hard reset, that should clear it up
Sent from my HTC One XL using xda app-developers app

Mines on constantly now too. Resetting didn't help.
Running Android 4.1 JB & faux kernel.

Proximity turns on while texting

I've been noticing, specially in a dark room, that when I use the stock messaging app (just when I'm about to reply or reading a text) the proximity sensor turns on. I can tell because it shines a faint red. And the same happens if I start a call, naturally.
I've switched back and forth with different apps, and when leaving the messaging app it turns off, and back on when I return to it. Anyone else have noticed this?
Thanks

Is your settings\motion\direct call switched to on? If so, that sensor lights up to use that option by checking when you put your phone to your head. It'll show up if you pull up a contact's information as well (but not if you're looking through the list).
Sent from a 3rd Galaxy in the middle of the Pacific.

kerick10 said:
Is your settings\motion\direct call switched to on? If so, that sensor lights up to use that option by checking when you put your phone to your head. It'll show up if you pull up a contact's information as well (but not if you're looking through the list).
Sent from a 3rd Galaxy in the middle of the Pacific.
Click to expand...
Click to collapse
So I see, I tought it was a bug or something. Actually What most concerns me is the impact on the battery comsumption. It's a good idea to leave it on?
And thanks!
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Glad to help. Haven't noticed a big drain from it but haven't turned it off to see for a while.
Sent from a 3rd Galaxy in the middle of the Pacific.

Samsung quick glance

Hi guys,
Did any body nanaged go get this function working. Even though the appropriate setting is ticked I can't get the the phone light up when switched off!
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I hope ur not turning the phone off while testing this function. .. The screen had to be locked. ..
Anyway. .. You have to swipe your hand over the light sensor while screen is off
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Place the phone on flat surface after locking it.
Now swipe your hand over your phone screen from top to bottom without touching the screen.
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Just hover your hands over the light sensor, but you have to do it kind of slowly and also it response at least 1s after you have hovered your hand over your phone. It's not really that useful of a function, more of a gimmick.
I do want to ask, do these motion functions really drain the battery a lot? As this means the motion sensor is always on.

juliano76 said:
Hi guys,
Did any body nanaged go get this function working. Even though the appropriate setting is ticked I can't get the the phone light up when switched off!
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
i cant seem to get it working neither.... it only works in the quick glance motion tutorial... very weird. am i missing some other settings? motion is on, quick glance ticked, screen lock is setup, anything else??

Wolf1203 said:
i cant seem to get it working neither.... it only works in the quick glance motion tutorial... very weird. am i missing some other settings? motion is on, quick glance ticked, screen lock is setup, anything else??
Click to expand...
Click to collapse
Its a cr*p feature -- or at least the implementation is. You need to sort of hover or cup your hand over the sensors and move it away slowly. Then sometimes it 'works', which means if you do it right about a second or two later the screen slowly wakes up and shows some info. All this takes 4-5 seconds, in which time you could have quickly switched the screen on and off anyways in lesser time.
Gimmick, as someone has pointed out above.

Not only your hand, but anything that cover the light sensor.

Try to calibrate the gyroscope
Wolf1203 said:
i cant seem to get it working neither.... it only works in the quick glance motion tutorial... very weird. am i missing some other settings? motion is on, quick glance ticked, screen lock is setup, anything else??
Click to expand...
Click to collapse
Hi, this is my first post here.
Please try to calibrate your gyroscope
To do this go to Advance settings and calibrate it.
I have question too about this QUICK glance (but actually slow glance)
I like this to use to check the time specially during night.
But it is really not quick when I use mine and my friend sister told me that hers is fast.
Does somebody know how to do it make it fast?

kind of a useless feature IMO. doesn't display much in the quick glance screen. much easier to just press the home key.

Yeah, ur right the home button is faster. But I dont believe this is crap feature, it depends in situation. In my side I use this glance feature during night and wake up to check the time not hurting the eye for glare. And in theater also you can use this to check the time, it is really respectfull if you try not to distract others inside the theater.
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I think it's useful for checking the time at night.
I just quickly pass my hand over the front and a second later time is illuminated for a few seconds
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guys, it works fine. just hover your hand in front of the sensor just in and out just like that all in less than1 second for me. it works everytime perfectly. very convenient. can someone confirm if this drains massive amounts of battery or negligible.

After trying the feature several times -- during which it did not work -- I then went in and did the gyroscope calibration. Then went back in, turned Motion on, and turned Quick Glance on. Now it works.

It was working for me up until last week, now my light sensor and or my proximity sensor seem to have stopped working all together. I am unable to get it to work at all. Is there any way to increase the light sensor sensitivity?

Works fine here.
Послато са GT-N7100 користећи Тапаток 2

It works just fine, but my problem is I like to have a screen timeout of 10 minutes, and manually turn my phone off when I want. Half the time I would click it off and set it down, it would immediately wake back up because my hand was over/near the sensor as I set it down.

Works perfect here whatever screen timeout I have set.
Remember that the phone had to be perfectly still and possibly on a level surface for it to work.
Regarding using battery I've read that the n2 has a slower processor dedicated to the motion features do doesn't fire up the main processor when using these features.
Sent from my Samsung Note II.

This feature is ok, but it's something a lot of people can live without. It'd be more impressive for us if Samsung extended this to other controls in their main apps, such as allowing this gesture when you receive a call. Wave your hand over the phone and it'll automatically pick up the call in speakphone mode. The Pantech Sky Vega had this feature when it launched last year and something like this is super useful if you're working with your hands (getting them dirty).
http://youtu.be/dG8tfaJswuY

It works for me to.
It also works for the flip cover. So when I just open the cover the glance appears then swipe the screen to unlock..no hard buttons to push
The question though.
I how can we tell if it does drain the battery.?
Sent from my GT-N7100 using Tapatalk 2

[Q] Galaxy Note 2 Proximity Sensor Showing Dim Red Light

I recently bought a new samsung galaxy note 2 and it was working all fine till the 2nd day of use in hands, suddenly i found one of the two sensors beside the camera showing a dim red light continuously,thats probably the Proximity sensor, I tried killing applications, but not worked, restarted phone and the light vanished...
Later on i noticed, the dim red light showing up whenever i opened any logs or messages,also the light stays on when the Quick Glance feature is on, i tried turning off the Direct Call and Quick Glance feature again that red light vanished...
i've searched alot about this problem, many people having it on Samsung Galaxy S 3, some have resolved by uninstalling viber, but i don't even have viber...
the light was not showing up before, but it came suddenly...
anyone having the same issue ? or anyone who has resolved such issue...
thanks alot in adv. for the responses

I don't see the problem? It's Just the proximity sensor working. ..
Sent from my GT-N7100 using xda app-developers app

Everybody got it. And it looks sexy.
(if u want to remove it just turn off motions)

um009 said:
Later on i noticed, the dim red light showing up whenever i opened any logs or messages,also the light stays on when the Quick Glance feature is on
Click to expand...
Click to collapse
Quick Glance uses the proximity sensor when the screen is off to tell when you're passing your hand over the phone to activate the feature.
I think Quick Call uses it to tell when you've moved the phone to your ear to dial the contact automatically.
Basically, it's normal depending on which features you have enabled/disabled.

um009 said:
I recently bought a new samsung galaxy note 2 and it was working all fine till the 2nd day of use in hands, suddenly i found one of the two sensors beside the camera showing a dim red light continuously,thats probably the Proximity sensor, I tried killing applications, but not worked, restarted phone and the light vanished...
Later on i noticed, the dim red light showing up whenever i opened any logs or messages,also the light stays on when the Quick Glance feature is on, i tried turning off the Direct Call and Quick Glance feature again that red light vanished...
i've searched alot about this problem, many people having it on Samsung Galaxy S 3, some have resolved by uninstalling viber, but i don't even have viber...
the light was not showing up before, but it came suddenly...
anyone having the same issue ? or anyone who has resolved such issue...
thanks alot in adv. for the responses
Click to expand...
Click to collapse
You do realize that the proximity sensor is an infared light sensor lmao
Sent from my SCH-I535 using xda app-developers app

dscblu said:
You do realize that the proximity sensor is an infared light sensor lmao
Sent from my SCH-I535 using xda app-developers app
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Click to collapse
Well..infrared light is invisible and cannot be seen.
That's why we cannot see any light coming out of the TV remotes even though they use infrared.
Sent from my GT-S5830 using Tapatalk 2

LOL I don't know how "infra" this particular red is, but there are known cases of people having been able to see near ultraviolet... So, maybe OP is just one very special person...?
--
Sent from my GT-N7100 using xda app-developers app

If u use another cam to take a shot of the sensor or any other infrared led as tv remotes,u will for sure see the light, just try it.
↖(^▽^)↗ Sent from Rego Galaxy Note ↖(^▽^)↗

eng.rego said:
If u use another cam to take a shot of the sensor or any other infrared led as tv remotes,u will for sure see the light, just try it.
↖(^▽^)↗ Sent from Rego Galaxy Note ↖(^▽^)↗
Click to expand...
Click to collapse
OMG! even I didnt know that!lol just tried it on the note and its bright!!

Thanks all for the response
this sensor teased me alot, but im in peace after knowing that the light coming out of it is normal thanks once again

Dim red light galaxy note 2
Hi there just been reading over this thread and only found it as I was having the same issue. Had a gs3 before this and I'm sure that had the same layout at the top of the handset an I never seen a red light appear on that in the 3 months I had it!. Noticed about 4 days ago this dim red light on my gn2 but just left it alone thinking similar to already mentioned reasons here like proximity sensor working but past 24hrs it just hasn't went off when before I was never there so why?. I turned phone off then back on again and now no red light and I've been using it for a few hours now so I don't think its just the proximity sensor working. When booting into recovery this same light appears for a split second before gn2 boot screen Sonoma thinking there might be some sort of bug when it stays on all the time so hopefully somebody will put our minds at ease with a solution

khsparky said:
Hi there just been reading over this thread and only found it as I was having the same issue. Had a gs3 before this and I'm sure that had the same layout at the top of the handset an I never seen a red light appear on that in the 3 months I had it!. Noticed about 4 days ago this dim red light on my gn2 but just left it alone thinking similar to already mentioned reasons here like proximity sensor working but past 24hrs it just hasn't went off when before I was never there so why?. I turned phone off then back on again and now no red light and I've been using it for a few hours now so I don't think its just the proximity sensor working. When booting into recovery this same light appears for a split second before gn2 boot screen Sonoma thinking there might be some sort of bug when it stays on all the time so hopefully somebody will put our minds at ease with a solution
Click to expand...
Click to collapse
If you bothered to read the replies, it's normal. The proximity sensor stays on when your screen is turned off and lying on a flat surface because of the quick glance feature.
The proximity sensor turns on too when you are in the address book or call app and also the messaging app because of the quick call feature.
It's not a bug, just leave it alone and let it be.
Sent from my GT-N7100 using Tapatalk 2

prinzhernan said:
If you bothered to read the replies, it's normal. The proximity sensor stays on when your screen is turned off and lying on a flat surface because of the quick glance feature.
The proximity sensor turns on too when you are in the address book or call app and also the messaging app because of the quick call feature.
It's not a bug, just leave it alone and let it be.
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
I did read the replies and I don't hav the quick glance feature enabled. I'm telling you that on MY phone at least this red light has not appeared again since turning my phone off then on again and has only been present in the last 2 to 4 days intermittently and whether that be through flashing rom (omega) or not there's is still no concrete answer because I am using my phone now as I have been since the day I got it with the same motion settings an same settings throughout so if your so sure you know why this red light stays on constantly can you tell me why over a 2 to 3 week period it has only been present on my phone intermittently for a couple of days?
---------- Post added at 10:34 AM ---------- Previous post was at 10:10 AM ----------
khsparky said:
I did read the replies and I don't hav the quick glance feature enabled. I'm telling you that on MY phone at least this red light has not appeared again since turning my phone off then on again and has only been present in the last 2 to 4 days intermittently and whether that be through flashing rom (omega) or not there's is still no concrete answer because I am using my phone now as I have been since the day I got it with the same motion settings an same settings throughout so if your so sure you know why this red light stays on constantly can you tell me why over a 2 to 3 week period it has only been present on my phone intermittently for a couple of days?
Click to expand...
Click to collapse
Edit: just received a text and on wakening the screen red light came on again so proximity explanation would be right because it went off again once I replied and locked the phone. This still doesn't explain why it was on constantly for 2 to 4 days with all my settings as they hav always beenand using my phone even as i am now!. Its just really bugging me I hate no knowing for definite but still appreciate your reply

I also have this bug/feature. On my phone the little dim red light works as described, when in messaging it lights up in case I put the phone to my head "Quick Call" feature is turned on. HOWEVER once in awhile this light will remain on constantly. Yes phone is locked and laying on its back. The "Quick Glance" feature is NOT on, "Turn over to mute/pause" is NOT on, "Smart Stay" is NOT on.
After a couple of days, the dim red light will just stay on. If I reboot the phone, it then shuts off and comes on only when messaging as expected, considering my settings. Again after a couple of days I will notice that it is on all the time again.

It's the government spying on us
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Proximity sensor issue
I flashed the rom Android Revolution HD on my Note 2. Now I have the problem, that i can't quit calls, because the screen doesn't turn back on. I flashed back to the original/stock rom, but it is still not working... Does somebody has an idea how to solve that?

Are you sure you dont have the face dectetion on???? The one in which tou phone doesn't go dim if your looking at the phone and also the rotational setting
Sent from my SGH-T889 using xda app-developers app

Ookpic said:
I also have this bug/feature. On my phone the little dim red light works as described, when in messaging it lights up in case I put the phone to my head "Quick Call" feature is turned on. HOWEVER once in awhile this light will remain on constantly. Yes phone is locked and laying on its back. The "Quick Glance" feature is NOT on, "Turn over to mute/pause" is NOT on, "Smart Stay" is NOT on.
After a couple of days, the dim red light will just stay on. If I reboot the phone, it then shuts off and comes on only when messaging as expected, considering my settings. Again after a couple of days I will notice that it is on all the time again.
Click to expand...
Click to collapse
I got the same problem... And its draining my battery like hell....
I don't use any motion or anything that use prox sensor... so?
faulty prox or soft bug?

As I was trying to tell princeherman up there,its not just 'a feature' there's a problem with it and whether that through being on a custom rom or not I'm not sure but it certainly doesn't behave consistently with or without motion settings activated as it turns out because we have posts here saying they have them all disabled!. I think I've only had it happen once since my past post about it weeks ago but I've also updated omega rom many times since then as well as trying the odd different rom so it could've been any of them as I just rebooted to rectify it without giving it much thought. Strange though!,wonder if someone el get a definite explanation?

Im also having this problem came here for help im stock but rooted

Anything makes the LED besides the front facing camera stay continuously ON?

Today I noticed a dimly lit red light from the second dot to the left of the front camera staying continuously on even when the display is turned off. I am not mentioning about the notification light that is placed to the left side. I tried many options but it stayed dimly lit. Later I thought of restarting the device and that did turn it off. This did show up as bright red for a moment when I turned on the device which later turned off.
Any idea what made it stay continuously on?
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I was having similar problem with gs3,turned out to be viber I guess...uninstall it and report again.

I don't have the viber app installed. By the way what is this led called and what is its function?
Thanks
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If its not the proper led then it must be proximity sensor(uses infrared light to detect proximity)
Normally turns on when u get a call to turn of screen when u hold close to your face.if its not viber then it might be what's app or Skype god knows what(may be try freezing phone apps one by one and find out for yourself)

Its not a bug or anything. Its meant to stay lit this way because its a proximity sensor.

turn off smart stay and anything else you might not need and it will go away

turn this off by go - Setting>Motion> Quick Glance: untick :good:

As I said it went off by restarting. I don't have the problem now to check any solution. Just was curious to know what was it.
While it was on, it stayed on even during the call or even when the display was turned off. I did not have any motion setting enabled.
Thanks everyone for your kind replies. I will see if I get the problem again
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I noticed that too, then I realized what was causing this. It's the Quick Glance function on "Motion" that's triggering this, because while the screen is off the phone's proximity sensor checks whether or not you have your hand in front of the screen for activating Quick Glance. In order to do that, the sensor must continously stay on, hence the continous red light.