Develop Bugs

Notification LED doesn't flash

The new message notification LED on my (new) LTE Gnex only flashes once or twice, just when the phone boots up. Doesn't flash when a new message arrives. I've tried disabling it, and re-enabling it in settings, but it just does not work. This does not seem normal, and I'm wondering if I need to return the phone, which I really don't want to do. I've already unlocked the bootloader and rooted, but still running the stock ROM.

cam30era said:
The new message notification LED on my (new) LTE Gnex only flashes once or twice, just when the phone boots up. Doesn't flash when a new message arrives. I've tried disabling it, and re-enabling it in settings, but it just does not work. This does not seem normal, and I'm wondering if I need to return the phone, which I really don't want to do. I've already unlocked the bootloader and rooted, but still running the stock ROM.
Click to expand...
Click to collapse
Have you tried Light Flow from the Market?
This has worked with the stock ROM.
I personally use Trackball Alert Pro - MoDaCo ROM has suppport for this.

Just tried calling myself, and hung up. The LED isn't lighting up. But I have seen it blink for emails at least. Hmm.. maybe try light flow.

justbabu said:
Have you tried Light Flow from the Market?
This has worked with the stock ROM.
I personally use Trackball Alert Pro - MoDaCo ROM has suppport for this.
Click to expand...
Click to collapse
Have not tried any 3rd party apps, yet. First I wanted to know if there was a problem with my phone, or if this is "just" a bug. If others have this same problem, then I'll try a 3rd party solution. Thanks for the feedback.

Tried the same thing, called myself and sent messages with no led notification. Thought my led was broken but then installed light flow and it worked no problems.
Not sure how it was supposed to work stock but could not get it to work at all without a 3rd party app.
Without the app, the only option I could fight was pulse notifications which I tried turning on and rebooting but it never seemed to work.

maybemobile said:
Tried the same thing, called myself and sent messages with no led notification. Thought my led was broken but then installed light flow and it worked no problems.
Not sure how it was supposed to work stock but could not get it to work at all without a 3rd party app.
Without the app, the only option I could fight was pulse notifications which I tried turning on and rebooting but it never seemed to work.
Click to expand...
Click to collapse
Thank you for the feedback. This is exactly the same behavior that I am seeing.

justbabu said:
Have you tried Light Flow from the Market?
This has worked with the stock ROM.
I personally use Trackball Alert Pro - MoDaCo ROM has suppport for this.
Click to expand...
Click to collapse
Just tried light flow. When I tried the "test LED" function, my phone would no wake from sleep. Also got sleep of death when I got an email. Had to do a battery pull. Any solution for this?
I looked at Trackball Alert and it requires Paul's ROM, which I'm not ready to try (yet).

I noticed it doesn't light up when it's charging either. Is this normal behavior?

From what I've seen so far the stock light is a hit and miss for me. Only time will tell how they will improve this.

Do you have it set on? Lol that's all I can think of. Mine works fine
Sent from my Galaxy Nexus using XDA App

ceredics said:
Do you have it set on? Lol that's all I can think of. Mine works fine
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Yes, mine is enabled.

Well its not your phone....The light stock is stupid I have no idea why you would include a light that only flashes random times and only in white..... I had issues with lightflow crashing my phone when waking with several notifications flashing. Just bite the bullet an flash ARHD or Paul's rom they both support Trackball notification and it works very well!!

Danny80y said:
Well its not your phone....The light stock is stupid I have no idea why you would include a light that only flashes random times and only in white..... I had issues with lightflow crashing my phone when waking with several notifications flashing. Just bite the bullet an flash ARHD or Paul's rom they both support Trackball notification and it works very well!!
Click to expand...
Click to collapse
I don't think these two have a CDMA/LTE ROM yet, do they?

cam30era said:
I don't think these two have a CDMA/LTE ROM yet, do they?
Click to expand...
Click to collapse
I'm pretty sure ARHD has 2 versions...gsm/lte

ceredics said:
Do you have it set on? Lol that's all I can think of. Mine works fine
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Yep. Probably don't have/use most apps that support it for me to notice it all the time.

I've been having the same trouble. Haven't seen the light in days.
I went back and revisited some of my settings. I had turned on the setting for the screen to "stay awake while charging." I unchecked it, and now my light is working again.
Now, it only ever comes on when the screen is off to begin with. It won't come on if the notification happens while it's already on.
But at least the light comes on when the screen is off now!
(And I really wish the blink rate was higher. You can look at it for several seconds between blinks, and think there's nothing and look away.)

So the change I made to the settings seems to have fixed the light issue. I have been properly getting notifications since I turned off the keep awake. Seems like an easy enough to fix bug as long as they know about it.
But now what I want is a faster blink rate. One second on out of every 6 or 7 seconds is easy to miss.

How many LED notification colors are there when using Light Flow?

For those with the Verizon Galaxy Nexus, how many different color notifications are there for the LED when you use Light Flow?

17 colours to choose from on mine, it seems.
Sent from my Galaxy Nexus using Tapatalk

darrendm said:
17 colours to choose from on mine, it seems.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
But will the phone display all those 17 or only say 4?

The Nexus has a RGB LED so any of the 17 colors can be mixed without a problem.
Why don't you try it by yourself? Lazy?
Despite that I have 19 colors to choose from on my GSM Nexus with Light Flow (paid).

Just a quick warning from my experience with Light Flow lite.
I installed the free version and it worked fine - I think I used 10 different colors and most of the time the worked well (sometimes the light would stay on when the notification was cleared).
However, I was having battery life issues so I uninstalled the application.
This actually GREATLY improved my battery life - but now my led is broken. It will only flash white, and it doesn't work for all events that it did before I used LFL. I've done a factory reset and a battery pull and the led will not go back to green.
I've emailed the developer and hope I'll get some help. It's a little hard for me to understand how this could happen and I hope I can fix it.
Just a word of caution to anyone considering using this app.

McDeadagain said:
Just a quick warning from my experience with Light Flow lite.
This actually GREATLY improved my battery life - but now my led is broken. It will only flash white, and it doesn't work for all events that it did before I used LFL. I've done a factory reset and a battery pull and the led will not go back to green.
I've emailed the developer and hope I'll get some help. It's a little hard for me to understand how this could happen and I hope I can fix it.
Just a word of caution to anyone considering using this app.
Click to expand...
Click to collapse
I don't think mine has ever flashed green? The stock notification for mail + sms is white, and tweetdeck is yellow... not seen anything else?
I too uninstalled Liteflow, because I found it frequently flashed forever until I rebooted when there were no notifications.

On the Nexus one, CM7 had a slider control for colors. You could create hundreds of different shades.
I think the Galaxy Nexus is the same. At this point we're only limited by software. RootzBoat rom had a LED color control built right into the general settings menu, but only had a few color selections. I used blue and I liked it alot. I don't think it allowed you to change it PER APP, but just the general color for all. Still cool to mess with again.
3rd party programs require to be run in the background as an app or service, but require constant monitoring. Kernel level control is best, but we'll have to wait for CM9 for that.

jmbillings said:
I don't think mine has ever flashed green? The stock notification for mail + sms is white, and tweetdeck is yellow... not seen anything else?
I too uninstalled Liteflow, because I found it frequently flashed forever until I rebooted when there were no notifications.
Click to expand...
Click to collapse
Ok then - maybe I've lost my mind! I thought I remembered it being green originally but it's entirely possible you're correct. Would make much more sense than to think that an app could 'break' the led functionality.

+1 for jmbillings.
Natively the LED is only flashing only whitish and as to be readable in a couple of threads not even that is working properly at all times.
Never had any issue with Light Flow except a not stopping notification ones a week. Bought it for Whatsapp and I'm still happy. No battery drain at all at no time.

you guys must be getting dozens of notifications in a day.
i've never even seen lightflow pop up under my battery statistics.

I use light flow on my Nexus and it works great!

Same here lightflow works great on my Nexus. And every single color I tried works. If some people are having trouble with the light still flashing even after swiping the notification away, try going into the app itself. It apparently will keep flashing until I actually check the notification out in the app.

Light flow didn't work for me, it would either flash constantly in test mode or do nothing. My LED does flash green for chompSMS but white for everything else.

light flow works 100% for me. Notifications always work and no notification his become 'stuck' when I clear it...
Sent from my Galaxy Nexus using Tapatalk

DanVanDamn said:
+1 for jmbillings.
Natively the LED is only flashing only whitish and as to be readable in a couple of threads not even that is working properly at all times.
Never had any issue with Light Flow except a not stopping notification ones a week. Bought it for Whatsapp and I'm still happy. No battery drain at all at no time.
Click to expand...
Click to collapse
Well maybe it's a native problem that I'm having. It will not notify me now of a missed call or an email. The only time I'm seeing the led blink is when I get a text message.
The developer actually took the time to reply to me and make some recommendations to improve battery life.
I'll give it another try, still having intermittent battery issues but may be more related to location polling than this app.
Thanks again to the folks here who take the time to help out.
---------- Post added at 05:47 PM ---------- Previous post was at 05:45 PM ----------
neok44 said:
you guys must be getting dozens of notifications in a day.
i've never even seen lightflow pop up under my battery statistics.
Click to expand...
Click to collapse
Yes, I do.
I don't see it under the native battery stats - it did show up fairly high on the list when I was using battery monitor widget.
Honestly, trying to figure out my battery issues has me suspicious of every app I install...

Works perfectly on my Verizon Nexus as well. The only hiccup is Handcent. If I dismiss the popup window on Handcent, the LED will continue to flash, until I actually go into Handcent and view the message,

I was using it to alert me if bluetooth was on, and that notification would tend to persist after I had turned bluetooth off.

For those having issues clearing the LED notifications, keep in mind just clearing the notification from the drop down won't turn off the LED. It will stay on until the notification is further acknowledged (i.e. the SMS message is 'read' under messages...or email etc).
Also, something I've found helpful is the lightflow debugger widget that comes installed with the app. From there you can clear all notifications as well as see what the last notification was

Technically the phone works well with all 17 colors - but as a male i must say that there are only approx. 8 colors existing in the world...

I think they need to combine the app (LightFlow) with the color selector from AOKP ROM. Its basically the MS Windows/Photoshop color chooser we're all used to: a circle with a slider to the right. The combination of those allows you to choose ANY color in the spectrum. And the LED will display it. (Blood red is my favorite....not as "light up your room" as the default cyan/white)
I did catch the LED lighting up yellow when I had a text that didnt get delivered....not sure if thats the SMS app Im using (GoSMS) or the kernel/ROM but something made it flash different color at different frequency.
Id love LightFlow just for all the apps it responds to....especially Words with Friends.

[APP] Light Flow

the developer has claimed the latest version on the play store is working for rooted phones, but I still am not having the best of success. I thought I'd start a thread and see how others are fairing.
The newest version has some improvement; being able to select different colors for different notifications and actually getting them to go off when you've pulled down the notification bar. however, it doesn't blink for me at all. When i get a text or email the corresponding light is a steady constant light if the screen is asleep. If you wake it up the light either disappears or only lights up very infrequently.
I've read some posts before the latest versions came out that some users had success getting it to work by actually turning Accessibility off. This seems to turn off the entire app for me.
anyone having better luck?

I have had the current version working correctly both on a stock TW rom, and now on CM10. The flashing lights haven't been implemented yet, however he is working on it.
The only thing I had to do on the Samsung TW rom was disable Samsung TTS in the manage apps settings. Once I set it to S3 root mode, everything worked perfectly.
I suggest you follow his blog here:http://www.folioflow.com/ff/page/website/lightflow/pageId/1826

xanderdad said:
I have had the current version working correctly both on a stock TW rom, and now on CM10. The flashing lights haven't been implemented yet, however he is working on it.
The only thing I had to do on the Samsung TW rom was disable Samsung TTS in the manage apps settings. Once I set it to S3 root mode, everything worked perfectly.
I suggest you follow his blog here:http://www.folioflow.com/ff/page/website/lightflow/pageId/1826
Click to expand...
Click to collapse
I have done all that including following the developers blog. I have accessibility on, only have the light flow notifications turned on, allowed SU access to light flow app, and have tinkered around with it all weekend but it still isn't working correctly. It works fine when the screen is on, but when the screen is off it gives a solid light.

Its not supposed to blink get, that's why I linked you to his blog.
Sent from my SGH-T999 using xda premium

A blinking light will kill the battery or at least use more juice. Dev did say he is looking into that feature tho
Sent from my SGH-T999 using xda premium

Developer advises blinking uses more battery than solid notification. Go figure.

Since I installed Light Flow, whenever the screen is off the LED glows a faint green. First I disabled Light Flow and the led still glows green. I unchecked it under Accessibility and rebooted, still green. Just had to uninstall and reboot to get it to stop. Anyone else have this issue? Is there a setting I'm missing somewhere?

civicvx94 said:
Since I installed Light Flow, whenever the screen is off the LED glows a faint green. First I disabled Light Flow and the led still glows green. I unchecked it under Accessibility and rebooted, still green. Just had to uninstall and reboot to get it to stop. Anyone else have this issue? Is there a setting I'm missing somewhere?
Click to expand...
Click to collapse
I had that issue when I restored from an old version of light flow. The newest version that I installed straight from the Play Store works fine.

I believe to get other colors other than green, you need to be rooted and go into the app settings and check "S3 root mode" or whatever its called...
Works perfect for me.
EDIT: I think the updated app (as of today) should work whether your rooted or not.

The update version today also supports blinking in adjustable intervals.

xanderdad said:
The update version today also supports blinking in adjustable intervals.
Click to expand...
Click to collapse
You guys should just install cm10 on your phones, it already comes with notification light settings & it works perfectly :good:

DOG666 said:
You guys should just install cm10 on your phones, it already comes with notification light settings & it works perfectly :good:
Click to expand...
Click to collapse
I would agree with that almost fully except it's a pain setting up different notification sounds between e-mail and sms/mms. It's also nice to be able to have it make notifications at intervals from missed calls/sms and the light to go away eventually if you want.
But I do have to say, I'm on CM10 - Paranoid Android ROM(latest build) and light flow is working like a charm for me right now. Looks like the bugs have been worked out for the most part.

Hi guys.. I have an international S3 and since a recent Lightflow update, I regularly get lightflow causing wakelock for hours. even with no outstanding notifications. I've uninstalled, re-installed - same problem.
Happened 3 times this week. reboot fixes it.

Light Flow issue

Hi guys, i'm having some troubles with Light Flow and KitKat on my Nexus 4.
I have set the led notification color etc.. but when there are notifications the led doesn't pulse.
I also try the testing mode of any notification and the led doesn't pulse but the led works..
Someone else has this problem? solutions?

I dont have any issue on my nexus...and you're wrong forum section..it should be on QA and Answer..
Sent from my Nexus 4 using Tapatalk

Same thing happens on my N4 with the paid version on stock rooted KitKat. I did a LED test in Light Flow to make sure everything works and it does, but the LED lights up about 20-30 seconds after I begin the test.
I then tried the free version of LEDBlinker and the LED lights instantly during the LED test and actual notifications.
Sent from my GT-P3110 using Tapatalk 4

Spasticdroid said:
Same thing happens on my N4 with the paid version on stock rooted KitKat. I did a LED test in Light Flow to make sure everything works and it does, but the LED lights up about 20-30 seconds after I begin the test.
I then tried the free version of LEDBlinker and the LED lights instantly during the LED test and actual notifications.
Sent from my GT-P3110 using Tapatalk 4
Click to expand...
Click to collapse
No problem, at all.
Light flow works like a charm to me.
Stock, rooted, clean install of 4.4.

I have a problem on KitKat it notifies me but sometime a notification isn't dismissed from the app so the led just keeps flashing. Its annoying but as KitKat is new it'll hopefully be fixed.
Sent from my Nexus 4 using Tapatalk

I have a issue with lightflow too .. sometime the led is working like a charm, then sometime (like 20% of time when i got a notification) nothing happen, i mean there is no led notification AT ALL !
Didn't try LEDBlinker because i like light flow for its feature to open screen for 5 second when a notification income

I have the issue where if I want read a text message after my screen is turned off then the light blink continues to go off. Its really annoying

Spasticdroid said:
Same thing happens on my N4 with the paid version on stock rooted KitKat. I did a LED test in Light Flow to make sure everything works and it does, but the LED lights up about 20-30 seconds after I begin the test.
I then tried the free version of LEDBlinker and the LED lights instantly during the LED test and actual notifications.
Sent from my GT-P3110 using Tapatalk 4
Click to expand...
Click to collapse
I had also wait a bit to see if the led was pulsing, but now it doesn't works..
I couldn't find anything on internet so I thought it was only a my problem..

Make sure to turn the accessibility service on and tick the notification access. (Security->Notification Access.)
Works perfectly fine for me, haven't had any issues with Lightflow on KK.
Sent from my Nexus 4 using XDA Premium 4 mobile app

xSalamanderman said:
Make sure to turn the accessibility service on and tick the notification access. (Security->Notification Access.)
Works perfectly fine for me, haven't had any issues with Lightflow on KK.
Sent from my Nexus 4 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
It's enabled.
I try delete all app data and reinstall and now it seems works

When i was in JB 4.2.2 it worked just fine, but since i factory reset and install official 4.4 kitkat Light Flow don't work so great

Same here whatsapp doesn't show any light...
Sent from my Nexus 4

tlf55 said:
I have a issue with lightflow too .. sometime the led is working like a charm, then sometime (like 20% of time when i got a notification) nothing happen, i mean there is no led notification AT ALL !
Click to expand...
Click to collapse
Try using Light Flow in "Foreground Mode" (No idea what the setting is called in English - i'm using localization), it sometimes gets killed by Android to free up ressources for other apps.

There's a new update out that has a few fixes for Kit Kat. The long delay of LED notification was fixed on my phone and all my custom settings react instantly.
Sent from my Nexus 4 using Tapatalk

With the new update, my hangout sms led never work now .. before it worked sometime and sometime not, but now, it doesn't work at all .. i'm very disapointed ..

tlf55 said:
With the new update, my hangout sms led never work now .. before it worked sometime and sometime not, but now, it doesn't work at all .. i'm very disapointed ..
Click to expand...
Click to collapse
The same happened to me, I found a temporary fix for that specific issue, though. If you go into the Lightflow there should be an option called like "Hangouts - All Notifications" or something like that, enable that one and the LED should start working again when you get an SMS in Hangouts.

The update isn't perfect... Sometimes it fails in SMS, but i think it will b just fine in the next couple updates, it's a very good app.

Maybe there is dust...try to open phone i clean it from inside

gajodafeira said:
The update isn't perfect... Sometimes it fails in SMS, but i think it will b just fine in the next couple updates, it's a very good app.
Click to expand...
Click to collapse
At my N4 it just stopped working. It works great during testing, but it doesn't for the actual notifications.

el_joel said:
At my N4 it just stopped working. It works great during testing, but it doesn't for the actual notifications.
Click to expand...
Click to collapse
Are you on 4.4? Did you did a fresh and clean update or simply updated 4.3 to 4.4? There are some people experiencing issues when they just updated..

Question horizon light op9 pro

I have tried everything in terms of manipulating the settings, but I cannot get horizon light to work at all, am I the only one with this issue, and does anyone know what needs to be done in order for it to function that isn't obvious?

thirtythr33 said:
I have tried everything in terms of manipulating the settings, but I cannot get horizon light to work at all, am I the only one with this issue, and does anyone know what needs to be done in order for it to function that isn't obvious?
Click to expand...
Click to collapse
No issues here. The colored bars show up when the screen is off and a notification comes in. I do have always on display, well, always on....not sure if that matters or not.

Mine doesn't seem to work either on the NA phone. And I can't even tell, are they supposed to light up just once or do they act more like the old notification LEDs?

Icculus760 said:
No issues here. The colored bars show up when the screen is off and a notification comes in. I do have always on display, well, always on....not sure if that matters or not.
Click to expand...
Click to collapse
yeah I tried that but to no avail, is it lighting up with any app or only certain ones? for example, I use fairemail for email and threema/signal for messaging, and it does not light up for any. moreover, it doesn't light up for anything at all, very frustrating.

I've noticed it for notifications from the stock messaging app and Gmail, but haven't seen anything else trigger it yet.

It's not that bright and only does it once so if you blink you will miss it!
I tested it with a calendar notification, not sure what else it works on. Don't remember seeing it for WhatsApp
Eta: it does work on most things, just miss it unless you are looking for it.

indesisiv said:
It's not that bright and only does it once so if you blink you will miss it!
I tested it with a calendar notification, not sure what else it works on. Don't remember seeing it for WhatsApp
Click to expand...
Click to collapse
Only does it once, you're right. Basically pointless lol.

NSD said:
Only does it once, you're right. Basically pointless lol.
Click to expand...
Click to collapse
Im not entirely sure how well this works, but I have messed around with this app previous. I used an app on the playstore called AOA by newGen Mobile, its not quite an ambient display but it is an Always on Display app that enables you to customize your horizon lights as you see fit(color, duration, pattern and such). There is a free version of it if you want to at least try it out.

Mine works fine, but i'm on Color OS c36.
Too bad that is only 3 colors : blue, red, gold.