Database Develop

LED Notification Light Deciphering

Been doing some searching, but there doesn't seem to be much info regarding the different colors and frequency of flashes that the LED notification light is capable of, depending on the notification received on the Nexus 4, so here goes.
This is just regarding the stock setup without LED modification apps, etc. So far, I have found that the LED has a few different patterns and colors depending on the type of notification that you receive. I am also wondering if there is any way to adjust the behavior of LED notification light in the stock configuration without additional apps or rooting with custom ROMs, etc. I have checked around within the settings of the different apps but aside from a few giving the option simply to use the notification light or not, it seems that it is not possible to adjust the behavior. Here are the details that I have discovered so far:
- Gmail, stock email app, stock text messaging app, others? - White LED, flashes once every 10 seconds
- Google Voice messages, Ebay app, Official Twitter app - Green LED, flashes once every 2 seconds
- Yahoo Mail - Violet LED, flashes once every 2 seconds
- Facebook, Tasks app, Plume - Blue LED
- Flight Track app - Yellow/Orange LED
- Google Messenger, Calendar, others? - No LED notification flash
This is just what I have observed so far after about a week with this awesome phone. Feel free to add to this list based on your observations and I will update the list. Thanks!

There won't be any way to adjust these without additional apps. It's left up to each particular app to support it and pick a color.
I seem to remember the old TweetDeck app was yellow.

crachel said:
There won't be any way to adjust these without additional apps. It's left up to each particular app to support it and pick a color.
I seem to remember the old TweetDeck app was yellow.
Click to expand...
Click to collapse
All apps can do different colors, but it just depends on the code. The Google+ used to use Red LED notifications, but they've since returned to using green (I think this is a step-backward, but whatever). Yahoo Mail did Purple when I last used it, and Flight Track uses Orange/Yellow. I suggest just downloading LightFlow or Rooting/Flashing a custom ROM for increased control (you can even specify blink frequency and other settings). The problem is, not many phones have had RGB LEDs, so App Devs have no reason to support them. With the GS3, New RAZRs, and the Optimus G/Nexus 4, hopefully this changes, although the LEDs seem to behave weird on some phone models, especially the RAZRs...

jab0321 said:
Violet LED, flashes once every 2 seconds? (This one happened the other day but didn't catch what caused it and haven't seen it since
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Click to collapse
could the red LED be for sync error? google mail had an outage the other day.

Facebook notifications are blue on mine, which is neat.

xdatastic said:
could the red LED be for sync error? google mail had an outage the other day.
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Click to collapse
That could be it. Anyone else notice this?
rickykemp said:
Facebook notifications are blue on mine, which is neat.
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Click to collapse
Good to know, although I don't use Facebook right now.

My LED didn't work from the factory, installed light flow and now at least it works the way I would have wanted it to from the factory.

I wished Google + would use the red LED again. I thought it was cool with the FB blue and G+ red.

Plume (Twitter app) also is Blue by default but can be customized in the settings.

Just got an eBay notification and they use green too. I would have assumed yellow....
Edit:
Forgot to add, the flash rate is fast, like on one second, off one, then back on.
Sent from my Nexus 4 using xda premium

Get Lightflow:
https://play.google.com/store/apps/...yYWdlY29uc3VsdGluZy5hbmRyb2lkLmxpZ2h0ZmxvdyJd
It'll take about an eon or so to set up, but once it's up and running it'll change your life. I have customized the LED notifications for all of my different accounts/apps in such a way that I rarely even turn my phone off vibrate anymore - I can tell exactly what is waiting by looking at what color(s) are displayed on the LED.

Good info and thanks for the comments! Also I am aware of light flow but am just looking at the stock setup.

Before I go with lightflow, I'm going to need to see two things. 1. Full compatibility with the N4 (there are bugs) and 2. Proof this won't drain my battery or prevent notifications from appearing. My battery isn't doing too hot and I don't need something else draining it!
Sent from my Nexus 7 using xda premium

One of my LEDs is dead
What color LEDs are there in there? I'm assuming RGB
I noticed my colors are off, tried several LED control apps, particularly "LED Tester", and none can get the Blue LED going. And my white is yellow. G and R are fine. Any advice beyond LED is dead?
I'm so sick and tired of QC on this phone ... I think I'm done with it. Returning for a refund, money wasted on now useless accessories, some of which are still in the mail

c0LdFire said:
Get Lightflow:
https://play.google.com/store/apps/...yYWdlY29uc3VsdGluZy5hbmRyb2lkLmxpZ2h0ZmxvdyJd
It'll take about an eon or so to set up, but once it's up and running it'll change your life. I have customized the LED notifications for all of my different accounts/apps in such a way that I rarely even turn my phone off vibrate anymore - I can tell exactly what is waiting by looking at what color(s) are displayed on the LED.
Click to expand...
Click to collapse
I prefer Light Manager. Much easier to set up. Plus notifications for charging.

Qbancelli said:
I prefer Light Manager. Much easier to set up. Plus notifications for charging.
Click to expand...
Click to collapse
Lightflow has notifications for charging. I say it's a pain to set up initially because picking a color for 41290 different notifications can take awhile, but the setup really is quite intuitive. It's been changed a lot in the last couple months - might be worth looking again some time.
---------- Post added at 04:04 PM ---------- Previous post was at 04:03 PM ----------
gotzaDroid said:
Before I go with lightflow, I'm going to need to see two things. 1. Full compatibility with the N4 (there are bugs) and 2. Proof this won't drain my battery or prevent notifications from appearing. My battery isn't doing too hot and I don't need something else draining it!
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
I've had no issues on my Nexus 4 with it. It's never drained my battery on this nor my Galaxy Nexus. Its memory footprint is tiny and it has no reason to wakelock the phone since all it does is intercept when a notification shows up (so the other app is what actually wakes the phone). It's really well designed.

c0LdFire said:
Lightflow has notifications for charging. I say it's a pain to set up initially because picking a color for 41290 different notifications can take awhile, but the setup really is quite intuitive. It's been changed a lot in the last couple months - might be worth looking again some time.
---------- Post added at 04:04 PM ---------- Previous post was at 04:03 PM ----------
I've had no issues on my Nexus 4 with it. It's never drained my battery on this nor my Galaxy Nexus. Its memory footprint is tiny and it has no reason to wakelock the phone since all it does is intercept when a notification shows up (so the other app is what actually wakes the phone). It's really well designed.
Click to expand...
Click to collapse
One question for you. I know that because of how light flow works, if it doesn't support an app the led won't work on that app even if that app has it's own led ability, but will the phone still display the notification (minus the light) for an unsupported app?
Sent from my Nexus 4 using xda premium

If you guys are rooted and installed the stock AOSP browser, for some reason Light Flow breaks it.
Once light flow is installed and permission is set in accessibility, the stock AOSP browser starts behaving badly and stops working correctly.
The autohide url bar stops working, when changed to full screen mode there is either a glitchy image at the top or a blank black area where the url bar is supposed to be. Problem completely goes away once light flow is uninstalled.
Very frustrating because I can't stand Chrome, and I need the AOSP browser + lightflow. It's either one or the other.

Dan37tz said:
If you guys are rooted and installed the stock AOSP browser, for some reason Light Flow breaks it.
Once light flow is installed and permission is set in accessibility, the stock AOSP browser starts behaving badly and stops working correctly.
The autohide url bar stops working, when changed to full screen mode there is either a glitchy image at the top or a blank black area where the url bar is supposed to be. Problem completely goes away once light flow is uninstalled.
Very frustrating because I can't stand Chrome, and I need the AOSP browser + lightflow. It's either one or the other.
Click to expand...
Click to collapse
Have you talked about this issue in the Light Flow thread here?:
http://forum.xda-developers.com/showthread.php?t=1994906
Maybe it helps to get it solved.

gotzaDroid said:
One question for you. I know that because of how light flow works, if it doesn't support an app the led won't work on that app even if that app has it's own led ability, but will the phone still display the notification (minus the light) for an unsupported app?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
As far as showing up in the notification bar? Absolutely. The apps themselves control that, not lightflow.
Personally I don't have any apps that lightflow doesn't support by now, but I'm sure there's some out there.

Optimized backlight

Does anybody knows how to switch of the optimized backlight feature which sony removed in the 4.3 update? They just actually kept it always on and removed the option from the display menu. Can anybody here make that option available again? As its very irritating the screen seems to dim and again get bright dependent on the content on the screen.
Sent from my C6902 using Tapatalk

I'm bothered by this thing too...
Really want a solution or a MOD to disable that annoying "feature".

Luhccas-X10 said:
I'm bothered by this thing too...
Really want a solution or a MOD to disable that annoying "feature".
Click to expand...
Click to collapse
Hope someone helps us
Sent from my C6902 using Tapatalk

+1

That is why. Holly Molly. I never saw that option on 4.2.2 but I saw the screen dim when he wants. Good option to have back.

eclyptos said:
That is why. Holly Molly. I never saw that option on 4.2.2 but I saw the screen dim when he wants. Good option to have back.
Click to expand...
Click to collapse
Absolutely. But nobody seems to be intrested in this thread
Sent from my C6902 using Tapatalk

I'll take a look when I find time, life is very busy lately..
Sent from my C6903 using xda app-developers app

krabappel2548 said:
I'll take a look when I find time, life is very busy lately..
Sent from my C6903 using xda app-developers app
Click to expand...
Click to collapse
Thanks i am sure u will do it
Sent from my C6902 using Tapatalk

Any light about this?
This thing makes display looks dull and without contrast...

I just want to disable this feature in lollipop and it's so annoying. I actually flashed 4.2.2 to my phone and disabled optimised backlight on it just to check and it looks perfect. There must be some way to implement it into a kernel or firmware somehow it's such a simple thing, the Z1 is a brilliant phone. That backlight flickering and colours changing on dark colours thing really annoys me and I know I'm not a developer or anything but I'd really love to see some sort of way to disable optimised backlight in lollipop and I'd actually donate to the person that done it if it could happen, that's how much it annoys me.

I know this is an old thread and this was a year ago but I recently got my Z1 back and want to still figure this out for something to do. So far I found out that in .518 and .534 firmware it's called ro.service.cabc.supported=true and persist.service.cabc.enable=1. Setting these to ro.service.cabc.supported=false and persist.service.cabc.enable=0 turns it off just like the setting optimised backlight does. Having the setting on false removes optimised backlight from the options menu while setting enable to 0 disables the feature which is what I want to do. I know I can just unick optimised backlight but the point is to try get it to work on newer firmware.
I tried it on 14.1.G.2.257 and I could get it to show optimised backlight in the options again by setting it to true but toggling it on or off does nothing and also from that firmware onwards setting enable to 0 no longer disables it. I'm assuming pre .257 kernels only had whatever disables it and it was removed after that. I'd like to implement this into a newer kernel and get it to work so I'm just sharing what I've figured out so far if anyone cares that is. I'm still going to keep at it and try figure out more. If anyone does care and knows how it works could it even be possible to get it to work on newer firmware or is it just a waste of time?
EDIT. Also if it doesn't work changing data/property/persist.service.cabc.enable from 1 to 0 with a root explorer enables it on reboot.
EDIT2: Just install white balance before deactivating optimised backlight and you won't get any hang on startup.
EDIT3: OK so it's definitely in the kernel and the only way I can get it to work on newer firmware is to learn how to edit and recompile a kernel.

Notification LED control

hello,
i'm using light flow legacy on my OP3T with OOS 3.5.4, franco kernel and root but my notification led is not working properly. the root option in light flow is activated but sometimes it does not what it should.
especially when the battery is below 15% the systems low battery light starts flashing even if it is not activated in light flow. other notifications do not flash in this case.
i don't want to use the OOS notification control because i don't like charging lights. how are you handling the notification led per app? if anyone has really working light flow or another app, could you please post your settings?
thanks!

I have the same problem with notification LED if battery below 15% because now the red pulsing LED have top priority so if i get a whatsapp message the notification LED don't turning to pulsing green. this is very bad because i don't see if i get a message.

I use my GravityBox module exactly for this purpose as It has an option for disabling battery charging light.
So if you use xposed, this is one of the ways how to get rid of charging LED.

thanks, I'll try it!

I assume a custom kernel with "notification led control" is essential to get apps like Lightflow working or does anyone have success using Lightflow with the stock kernel?

reayard said:
I assume a custom kernel with "notification led control" is essential to get apps like Lightflow working or does anyone have success using Lightflow with the stock kernel?
Click to expand...
Click to collapse
Don't know whether lightflow needs any changes at kernel side but it doesn't make sense to me why it should. I'm using my own led control implementation that's built-in in GravityBox and led control works fine with stock kernel and ROM (well, colors work but custom blink intervals not as they seem not to be supported by led driver). It's a premium feature though.

C3C076 said:
Don't know whether lightflow needs any changes at kernel side but it doesn't make sense to me why it should.
Click to expand...
Click to collapse
The reason I am asking is because for me Lightflow is not working with the stock kernel. It seems that even with root Lightflow does not have enough access to the leds to overwrite the behavior of OxygenOS. And I wonder what this "notification led control" means and if it improves the situation.

reayard said:
The reason I am asking is because for me Lightflow is not working with the stock kernel. It seems that even with root Lightflow does not have enough access to the leds to overwrite the behavior of OxygenOS. And I wonder what this "notification led control" means and if it improves the situation.
Click to expand...
Click to collapse
I wonder that too.

reayard said:
The reason I am asking is because for me Lightflow is not working with the stock kernel. It seems that even with root Lightflow does not have enough access to the leds to overwrite the behavior of OxygenOS. And I wonder what this "notification led control" means and if it improves the situation.
Click to expand...
Click to collapse
GravityBox has "Ultimate notification control" feature which is a comprehensive solution to notification control. It's utilizing Xposed framework so allows some specialties that are not possible using standard LED apps. Attached are some screenshots of all the settings which can be controlled on per-app basis.
GravityBox itself is my open-source xposed module project I've been working on for over 4 years. It provides plethora of features that can be seen on custom-roms and basically brings custom ROM-like experience to stock ROM preserving things like stock stability and other stock functionality (e.g. camera experience) which is a win-win situation. Ultimate notification control (UNC) together with possibility to backup/restore settings are the one and only features among many that are premium. UNC has trial mode so you can freely test whether it meets your requirements. Link is in my signature.

C3C076 said:
GravityBox itself is my open-source xposed module project I've been working on for over 4 years.
Click to expand...
Click to collapse
Oh hi! I used your module some years ago and would definitely give it a try again as soon as Xposed is released for Nougat. From the screenshots it seems to support everything that I want i.e. per app settings for color and on/off duration.
I always wondered if the huge amount of features of GravityBox will not result in some additional instability. That's why I tried to get my Xposed stuff done with several smaller modules instead of your "One for everything" module.

C3C076 said:
I use my GravityBox module exactly for this purpose as It has an option for disabling battery charging light.
So if you use xposed, this is one of the ways how to get rid of charging LED.
Click to expand...
Click to collapse
i tried to disable the low battery light in gravity box and the light stopped flashing. but light flow does not work on low battery.
i think i have to give your notification control a try. regarding the custom blink intervall i hope a dev will implement something in his kernel.

LED Color Change

Is there any way to change the color of the notification LED on the Note 8 without root? I'd like to change it for each specific notification (gmail, missed call, text, etc.). I have tried Light Flow with no success.

I use light manager, have been using it for years.
On the note 8 it works well for notifications, and works for charging but not as well as previous phones.

What is funny is there is a "LED Icon Editor" in the Notification Access area in settings. When I click to allow it to access notifications it goes right back off. I can't find this app anywhere else on the phone.

pool_shark said:
I use light manager, have been using it for years.
On the note 8 it works well for notifications, and works for charging but not as well as previous phones.
Click to expand...
Click to collapse
Any hit on battery or ram usage?

PhilPan said:
Any hit on battery or ram usage?
Click to expand...
Click to collapse
I don't pay much attention to battery life. I've been using the app for years, no problems for me.

LED Icon Editor
fireattack7 said:
What is funny is there is a "LED Icon Editor" in the Notification Access area in settings. When I click to allow it to access notifications it goes right back off. I can't find this app anywhere else on the phone.
Click to expand...
Click to collapse
This is actually for the LED Case which you can customise the LED notifications

For anyone finding this thread later, LightFlow works with the Note 8 without root
fireattack7 said:
Is there any way to change the color of the notification LED on the Note 8 without root? I'd like to change it for each specific notification (gmail, missed call, text, etc.). I have tried Light Flow with no success.
Click to expand...
Click to collapse
The problem with Light Flow on the Note 8, though, is that it appears that, even though I believe the LED is capable of RGB, it gets some colors very wrong. It may just be custom colors that are the problem.
Light Flow also now does a bunch of other stuff, aside from the LED. You can have it filter notifications based on pattern matching, make a different sound, repeat the sound, use a popup, add vibration. It does a bunch of Notification-handling stuff and is a bit simpler and more reliable (in my experience anyway) than trying to use a cobble of Tasker + AutoNotification.

I also use light flow and I've had no issues once set up although I do have the colour differences, e.g. select white and the led flashes a purple'ish colour.
Other than that it's been fine, negligible battery usage too.

fireattack7 said:
What is funny is there is a "LED Icon Editor" in the Notification Access area in settings. When I click to allow it to access notifications it goes right back off. I can't find this app anywhere else on the phone.
Click to expand...
Click to collapse
That setting is for the LED wallet cover/case Samsung makes for the Note 8 and can only be turned on after inserting the phone is to that specific case.

I use light manqger, since S3, then, the colors were accurate, but in my note 4 note 7 and now with the note 8, I find the colors missrpresented, no white, but a bluish tone, no yellow, but a somewhat orange tint, etc, so, I guess the led is not capable to display accurate colors, but, for me, that is not a big deal, the available color suffice my needs

kaos_king said:
I also use light flow and I've had no issues once set up although I do have the colour differences, e.g. select white and the led flashes a purple'ish colour.
Other than that it's been fine, negligible battery usage too.
Click to expand...
Click to collapse
Sorry to bump a 2 year old thread but does Light Flow work for Facebook Messenger for you? I can't seem to get it to display blue color for Messenger no matter which app I use for changing LED colors.

koragg97 said:
Sorry to bump a 2 year old thread but does Light Flow work for Facebook Messenger for you? I can't seem to get it to display blue color for Messenger no matter which app I use for changing LED colors.
Click to expand...
Click to collapse
No worries, although I don't think I can help.
I no longer use Messenger however I did used to be able to assign a colour of my choice to it, but who knows how the app has changed in the last couple of years. Not only that but I have a Note 10 now which has no led light :/ Sorry bud

kaos_king said:
No worries, although I don't think I can help.
I no longer use Messenger however I did used to be able to assign a colour of my choice to it, but who knows how the app has changed in the last couple of years. Not only that but I have a Note 10 now which has no led light :/ Sorry bud
Click to expand...
Click to collapse
Thanks for replying. I found apps that work but all of them make another notification which is seen on AOD and it just bothers me. Ended up with default LED light and custom Edge Lighting colors for each app with the Edge Lighting Fix App

Change LED notification color

Hi all,
I want to have a LED notification with Gmail. So I tried Light Flow and LED Manager from store. But both are not working.
Did somebody try to change LED color?

I was able to turn on led notification for gmail with Light Manager Pro 12.1.7, but I'm unable to change color (it's already blue for gmail).

DerekTM said:
I was able to turn on led notification for gmail with Light Manager Pro 12.1.7, but I'm unable to change color (it's already blue for gmail).
Click to expand...
Click to collapse
Did you try Light Flow? If not, would you mind to try if you can?
Someone replied to my thread on the same matter last week and said it was working fine as long as you use the basic colors given by the app.
I tried to install it on a device in a shop via apk, but the damn retail demo that I couldn't manage to uninstall/deactivate prevented me from locking the screen to allow a test run (it's a feature in the settings of light flow).
Btw I got an answer from the developers of both LightManager and LightFlow and they told me P20 Pro is not fully compatible with these apps, but I don't know what "not fully" means in terms of what we can and can't do.

W737NG said:
Did you try Light Flow? If not, would you mind to try if you can?
Someone replied to my thread on the same matter last week and said it was working fine as long as you use the basic colors given by the app.
I tried to install it on a device in a shop via apk, but the damn retail demo that I couldn't manage to uninstall/deactivate prevented me from locking the screen to allow a test run (it's a feature in the settings of light flow).
Btw I got an answer from the developers of both LightManager and LightFlow and they told me P20 Pro is not fully compatible with these apps, but I don't know what "not fully" means in terms of what we can and can't do.
Click to expand...
Click to collapse
Light flow didnt seem capable of setting the color correctly. For instance... the led color just kind of cycled a few colors when I set a particular notificationc olor to blue.
LightManager seems to work so far... but blue is very dim.
Both require a persistent notification. Will see how that affects battery.
Edit: Annoyingly enough, after seeing lightmanager works, I decided to pay the dev for the full version... which does not work. Somehow.

loudog3114 said:
Light flow didnt seem capable of setting the color correctly. For instance... the led color just kind of cycled a few colors when I set a particular notificationc olor to blue.
LightManager seems to work so far... but blue is very dim.
Both require a persistent notification. Will see how that affects battery.
Click to expand...
Click to collapse
Thanks a lot for your feedback!
Damn... I was hoping to get at least a smooth run, working basic colors and no persistent notification.
I’ll give it a go again in another store by installing light manager before giving up and going with the S9+.

I paid for the full Light Flow version and it still isn't working for my P20 Pro. Guess we gotta wait for full compatibility

Code:
laydeh said:
I paid for the full Light Flow version and it still isn't working for my P20 Pro. Guess we gotta wait for full compatibility
Click to expand...
Click to collapse
I gave up using Light Flow a few months ago but tried again today, out of curiosity, and it works! I recently updated the P20 Pro firmware to v8.1.0.156 (C432), don't know if it started working with this version or the one before.