Develop Bugs

LED Color Change?

I have a buddy that has the Nexus 1 and after he installed 2.2, his LED light would change for different notifications like,
Blue LED = Handcent Message
Purple LED = Craiglist Post
etc.....
Is this something that is implemented inside our version of Froyo?? OR is that even possible on our EVO's

BAttitude7689 said:
I have a buddy that has the Nexus 1 and after he installed 2.2, his LED light would change for different notifications like,
Blue LED = Handcent Message
Purple LED = Craiglist Post
etc.....
Is this something that is implemented inside our version of Froyo?? OR is that even possible on our EVO's
Click to expand...
Click to collapse
Wouldn't the led's have to be physically changed to have the different colors? AFAIK our evos only have a red and a green led installed. I guess its possible I could be wrong but I don't think so....although it has happened before....hehe

Not necessarily. I would imagine it could be changed, unless there are 7 or so LEDs in the N1.
P.S. John Denks sucks.
Sent from my PC36100 using XDA App in the Greatest City in the World

Thats correct. Evo's only LED colors are amber and green.
Also, I believe these sort of questions belong in the Q&A section. Just a heads up for next time
EDIT: See here for details on LED Swap.

kpoz said:
Not necessarily. I would imagine it could be changed, unless there are 7 or so LEDs in the N1.
P.S. John Denks sucks.
Sent from my PC36100 using XDA App in the Greatest City in the World
Click to expand...
Click to collapse
I don't think software or firmware can determine the color of an led....

You only need red,blue, green to make all the colors imaginable...since our phone only has amber and green, then theoretically we can combine those colors to make more...unfortunately, what colors could those be?

surrealmethod said:
You only need red,blue, green to make all the colors imaginable...since our phone only has amber and green, then theoretically we can combine those colors to make more...unfortunately, what colors could those be?
Click to expand...
Click to collapse
theoretically true IF you could realistically vary the intensity of the LEDs, but one LEDs are not generally that readily variable and two, they are most likely connected to digital outputs so they are either Off or On.

Will not work that way. They are individual parts and on the evo the green is angled to the left. And the amber is angled to the right...so even if you could turn them on at the same time they would not be focused to one point to blend into a different color. Give up can't be done! Unless you swap out the leds.

What about varying the duty cycle of the leds, theoretically that whould result in a color blend even though leds are angled.
However, there aren't many colors that could be created by mixing green and amber.
Sent from my PC36100 using XDA App

Interesting
On my nexus the led only blinked white, and many people challenged whether or not it can be done, but eventually there was a mod released allowing to choose between any color I wanted to track ball to glow.
But if the LEDs are in different places like stated above then I think it would be more of a challenge.

from what i have noticed with my evo. the way the LED light is set up is: A electric current flows one way to emit a green light, or it flows the opposite way to emit the amber color. This is something I have learned in a circuits class and seems logical that it would work this way. I dont think with this situation having different colored LEDs will work.

hved999 said:
from what i have noticed with my evo. the way the LED light is set up is: A electric current flows one way to emit a green light, or it flows the opposite way to emit the amber color. This is something I have learned in a circuits class and seems logical that it would work this way. I dont think with this situation having different colored LEDs will work.
Click to expand...
Click to collapse
Have you tested this? A typical led is a diode where current can only flow one way, and based on the fact that the leds are displaced, it appears that there are 2 leds.
Additionally, even if only one led could be on at one time, alternating the emission while controlling duty cycle could create an effect of mixed color.
Sent from my PC36100 using XDA App

Most likely it's two leds built together. White leds can be made the same way, with a red, green, and blue diode built together. When all three are on, the color will look white.
Sent from my Ego 4G using XDA App

On CyanogenMod 6 (8/4 nightly build), the LED alternates orange and green for text messages and just orange for email and other notifications.
Sent from my PC36100 using Tapatalk

dbolot1 said:
Have you tested this? A typical led is a diode where current can only flow one way, and based on the fact that the leds are displaced, it appears that there are 2 leds.
Additionally, even if only one led could be on at one time, alternating the emission while controlling duty cycle could create an effect of mixed color.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
There are bi-color LEDs that only have 2 leads. Internally they have 2 LEDs wired in an inverse parallel configuration. You apply power one way, green... Apply power the other, yellow.
A better scenario is if the EVO has a tri-color LED (uses 3 leads), which means one set = Red, other set = Green, both sets = Yellow.

Notification led app customiser

Hey HOX users
Just was wondering if their was an app on the market which can let me customize the notif led on the one x. Also one which do sent use root would be preferred. Thanks
Adam
Sent from my HTC One X using xda premium

I also...

I've only seen them for the nexus line phones.. Well except for the nexus s.. I think I might of seen a rom somewhere that tweaked the led a little but nothing too drastically. I think it was like green led for notification, flashing red for missed call or something I can't remember
Sent from my HTC One X using XDA

I might be wrong but the led can only change red or green. It was the same with the htc desire.

We need a RGB LED notification light for various colours like in the Nexus or SGS3 or Blackberrys. I don't think we have a RGB one.

ghori1989 said:
I might be wrong but the led can only change red or green. It was the same with the htc desire.
Click to expand...
Click to collapse
You are wrong on one count, the Desire was able to show blue, magenta and others, can't remember which mod or app i used to do it though.

Sorry don't know abt led but there is an app called "no led" which worked a charm on my sgs2. though this does not use led!
Sent from my HTC One X using XDA

craftycarper1 said:
You are wrong on one count, the Desire was able to show blue, magenta and others, can't remember which mod or app i used to do it though.
Click to expand...
Click to collapse
My bad, i never managed to find an app that worked.

Try light flow light it can make the notification led glow in different colors.But in our one x its of no use since our phone has only red and green led.Miss my desire for that feature it can nearly display 5 or 6 colors and i assigned a color for each different type of notification!

arvind16982 said:
Sorry don't know abt led but there is an app called "no led" which worked a charm on my sgs2. though this does not use led!
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
No LED is not a very good solution for non AMOLED screens. With LCDs the whole screen lights up, this will drain the battery faster.

HOX only has RED or GREEN

Not to question anyone, but how has it been determined that the HOX ONLY supports red and green, aside from that being all that we've seen it display? I ask mostly out of simply curiosity (if someone has looked at the actual LED, or perhaps seen code proving it), but also because I just don't understand why a manufacturer wouldn't include an RGB LED over two separate LEDs or a bi-color LED. I can't imagine the price would be that different, and the possibilities are endless. No LED is silly, a non-RGB LED is silly. Wish the manufacturers would think these simple things through more.
Still, I've had Samsung phones prior to this, so I'm used to having no LED at all, so even green and red is a big upgrade to me!

Hi
At best you might get three colours, Red, Green, or Orange, i.e. both Red and Green lit, this will give you a yellow/orange color.
However, in order to optimise the circuitry layout, the LED likely only has two connections. To switch between red or green, the voltage is simply reversed. This makes it impossible to have both LEDs on at the same time. I expect this is the case in the HOX, so Red or Green is all you can get.
Regards
Phil

PhilipL said:
Hi
At best you might get three colours, Red, Green, or Orange, i.e. both Red and Green lit, this will give you a yellow/orange color.
However, in order to optimise the circuitry layout, the LED likely only has two connections. To switch between red or green, the voltage is simply reversed. This makes it impossible to have both LEDs on at the same time. I expect this is the case in the HOX, so Red or Green is all you can get.
Regards
Phil
Click to expand...
Click to collapse
Take a closer look at those LEDs. They won't be changing color at all.
The red and green actually come from different parts behind the mesh.
From this I would gather that there are just2 different LEDs behind there.
Sent from my HTC One X using XDA

would be nice to have both flash at same time or have them blink a certain number of times or have them stay on for a few seconds or something like Morse code...

Is there any app like led me know that can use keys under the screen for notifications? that would make me so happy i have a international model with the default rom

Notification light on nexus 7

Hi all I have just bought the new nexus 7 and I love it. One problem is I have never seen the notification light work yet. I have checked in settings and it's ticked.. When does it flash? Is it every time you get a notification from eg Facebook etc,? I'm worried it's not working.

The light is usually associated with notifications, yes. Usually this is configurable in the apps responsible for the notifications.

I thought the same when I got mine but it was flashing during a notification a while back so at least it works but rare.
Sent from my Nexus 7 (2013) using Tapatalk 4

Muikkuman said:
it works but rare.
Click to expand...
Click to collapse
Mine triggers on e-mails, so I see it a lot!

Does work thanks sent myself an Email

I use LightFlow and configured the light to fade in and out with almost no period of time where the light is off. It looks as if the light is "breathing", and is much more noticeable than the 10 second delay between flashes that the stock light is. Give it a shot.

So far, I've only seen it light with email. General notifications don't seem to trigger it.

My first Nexus 7 (2013) had a completely broken notification light. No matter what I did, I couldn't get it to light up. (I ran testing programs, Light Flow, sent myself emails, etc). Exchanged it at Best Buy and the new one worked immediately. So just know that there are some defective notification LEDs out there.

There's a whole slew of less common issues that IMO if it bothers you, you should get an exchange, but if not, just live with it.
LED doesn't work
NFC doesn't work
Bluetooth doesn't work
Qi wireless charging doesn't work
dust under screen
light bleed
offwhite screens
dead/stuck pixels
mushy Power/Volume buttons
creaky edges
back cover comes off easily
screen separating from tablet
battery charger not recognized even though it is charging
microphone doesn't work
one speaker has no sound
charger makes buzzing noise
camera blurry
--
spasdic multi-touch
touchscreen dead-spots
camera crashes tablet
hardware related random reboots (not the same as software-related reboots)
--
The last 4 can sometimes be mitigated in software so try fixes first.
Many of these issues are rare. Some are more common. I think a lot of people don't even notice or just live with it because it really doesn't bother them that much or they don't even use the feature.

SubMatrix said:
I use LightFlow and configured the light to fade in and out with almost no period of time where the light is off. It looks as if the light is "breathing", and is much more noticeable than the 10 second delay between flashes that the stock light is. Give it a shot.
Click to expand...
Click to collapse
What settings did you use to do this? Sounds interesting.

Hmm...it sounds like my LED light took a dump on me then. I've had my Nexus 7 2013 for about a month. It used to notify me for emails...now nothing. And yes it does bother me.
Sent from my Nexus 7 using Tapatalk

happenchance said:
Hmm...it sounds like my LED light took a dump on me then. I've had my Nexus 7 2013 for about a month. It used to notify me for emails...now nothing. And yes it does bother me.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
Then take a dump on this device.

SubMatrix said:
I use LightFlow and configured the light to fade in and out with almost no period of time where the light is off. It looks as if the light is "breathing", and is much more noticeable than the 10 second delay between flashes that the stock light is. Give it a shot.
Click to expand...
Click to collapse
Hmm, downloaded light flow lite and I don't see that setting anywhere...

Dl light manager....

LED Notification light?

Can anyone tell if this thing has a LED notification light? Link to picture or video?

I'm wondering the same thing. I'm also interested in knowing if it does have a notification LED, if the colors available are just amber and green, which would be consistent with other HTC phones, or if additional colors are available.

Yes it does have one below the top speaker grill. i saw a video of it blinking green but i watched so many idk which one it was.

It definitely has one at 3.23 in this video you see it flash quickly under the earpiece https://youtu.be/exsEpSnVA0A?t=201

Does the LED blink for notifications when plugged in? The last htc phone I had didn't, meaning when charging, the LED stayed solid even if there were notifications.

I sincerely hope there's an RGB LED in there or else I'm cancelling my pre-order. Between not having wireless charging, RGB LED and -possible- wobbling while using it on my desk, that's one step too much for me. I really wanted to get it and could live with a couple of quirks but this is one too many.

ombadboy said:
I sincerely hope there's an RGB LED in there or else I'm cancelling my pre-order. Between not having wireless charging, RGB LED and -possible- wobbling while using it on my desk, that's one step too much for me. I really wanted to get it and could live with a couple of quirks but this is one too many.
Click to expand...
Click to collapse
I highly doubt it has a RBG one, HTCs never do.

RCJ89 said:
It definitely has one at 3.23 in this video you see it flash quickly under the earpiece https://youtu.be/exsEpSnVA0A?t=201
Click to expand...
Click to collapse
Thanks! I am relieved to see that.
I had actually watched that video and missed it. (I was looking for a shot of the phone charging!)
Thanks again!
---------- Post added at 03:02 PM ---------- Previous post was at 02:59 PM ----------
metalfan78 said:
Does the LED blink for notifications when plugged in? The last htc phone I had didn't, meaninOTE]g when charging, the LED stayed solid even if there were notifications.
Click to expand...
Click to collapse
If it doesn't exhibit the native LED behavior you desire, I highly recommend the app Lightflow. With Lightflow you can get the LED to behave pretty much however you would like it to, though you still won't be able to get it to show colors other than amber and green if HTC hasn't provided an LED capable of other colors.
---------- Post added at 03:04 PM ---------- Previous post was at 03:02 PM ----------
RCJ89 said:
I highly doubt it has a RBG one, HTCs never do.
Click to expand...
Click to collapse
They haven't, and you're probably correct that the HTC 10 won't either, but like ombadboy, I'm hoping it finally does. It --IS-- being touted as the "perfect 10", so you never know. I'm hoping, but not expecting.

An RGB LED would be cool, but I wouldn't suspect it being there. I haven't had an RGB LED since my Blackberry. It was nice being able to set custom colors and patterns for different contacts. I've found custom vibration patterns to fill the void. but that doesn't help with true silent mode.
At least we'll be able to see the damn notification LED this time! The Droid DNA's LED was ok (the one on the back was cool but hard to see) but the decision to put the LED behind 1 out of about 50 tiny holes in the speaker grill on the M8 was awful. It's so small and hard to notice.

RCJ89 said:
It definitely has one at 3.23 in this video you see it flash quickly under the earpiece https://youtu.be/exsEpSnVA0A?t=201
Click to expand...
Click to collapse
Good eye! Glad it has one. First-world problems I know, but I ain't buyin no phone with no notification light
ombadboy said:
I sincerely hope there's an RGB LED in there or else I'm cancelling my pre-order. Between not having wireless charging, RGB LED and -possible- wobbling while using it on my desk, that's one step too much for me. I really wanted to get it and could live with a couple of quirks but this is one too many.
Click to expand...
Click to collapse
I totally understand and agree. A lot of people appreciate seemingly small things like this (big thing to me). I surely hope it has a RGB LED for once.

s1dest3pnate said:
I surely hope it has a RGB LED for once.
Click to expand...
Click to collapse
It doesn't, unfortunately.
I had posted the question yesterday on the HTC Facebook page. They answered a little while ago, saying amber and green only.

Andyw2100 said:
It doesn't, unfortunately.
I had posted the question yesterday on the HTC Facebook page. They answered a little while ago, saying amber and green only.
Click to expand...
Click to collapse
Can't say I'm surprised, but that's very unfortunate. Thanks for confirming!

metalfan78 said:
Does the LED blink for notifications when plugged in? The last htc phone I had didn't, meaning when charging, the LED stayed solid even if there were notifications.
Click to expand...
Click to collapse
You can choose to display led notification when on charge using Xposed + Sense toolbox.

Andyw2100 said:
It doesn't, unfortunately.
I had posted the question yesterday on the HTC Facebook page. They answered a little while ago, saying amber and green only.
Click to expand...
Click to collapse
Over in the megathread, I've seen purple and white happen in the various video reviews, so I'm gonna say that the twitter is wrong on this one.
The evidence so far points to yes, finally HTC will have an RGB LED

Andyw2100 said:
They haven't, and you're probably correct that the HTC 10 won't either, but like ombadboy, I'm hoping it finally does. It --IS-- being touted as the "perfect 10", so you never know. I'm hoping, but not expecting.
Click to expand...
Click to collapse
I don't think they have but its not a deal breaker for me atall.
My 3 main things of importance
1. battery life
2. sound
3. camera
sound I know they have ticked that box they always do, camera sounds promising from initial hands on ive seen but bettery is yet to be seen.
---------- Post added at 08:05 PM ---------- Previous post was at 08:01 PM ----------
s1dest3pnate said:
Good eye! Glad it has one. First-world problems I know, but I ain't buyin no phone with no notification light .
Click to expand...
Click to collapse
Cheers, while I too would hope it has a RBG one as tbf the green/amber combo is crap especially as it doesn't change when your charging and get a notification but the only thing that would stop me buying the 10 is poor battery life

RCJ89 said:
Cheers, while I too would hope it has a RBG one as tbf the green/amber combo is crap especially as it doesn't change when your charging and get a notification but the only thing that would stop me buying the 10 is poor battery life
Click to expand...
Click to collapse
It doesn't have RGB. See my post up thread.
As for changing color when charging, I'd recommend using LightFlow. I believe even the free version will let you set the color to, say, amber while charging, and then green when fully charged. (I have the paid version, so I can't say for certain that the free version allows this, but I think it does. The paid version definitely does, at least on the One M8.)

HTCs signature, green and orange LED. Lol
Sent from my SM-G935T using XDA-Developers mobile app

Don't know if you guys realize this, but the Desire 626s and A9 (and the 10) all have RGB LEDs. Whether or not HTC is using them as such is a different story, but they are.
See here: https://github.com/CaptainThrowback...lob/master/drivers/leds/leds-lp5521_htc.c#L47

Captain_Throwback said:
Don't know if you guys realize this, but the Desire 626s and A9 (and the 10) all have RGB LEDs. Whether or not HTC is using them as such is a different story, but they are.
See here: https://github.com/CaptainThrowback...lob/master/drivers/leds/leds-lp5521_htc.c#L47
Click to expand...
Click to collapse
Forgive my ignorance, but does this mean that if, by some chance, the HTC 10 also includes an RGB LED that a program like LightFlow may be able to make use of the RGB capabilities it possesses?
I'm going to get in touch with the LightFlow developer, to ask him what he knows about how his product functions on the Desire 626 and A9.
Thanks for that great tip!

Andyw2100 said:
Forgive my ignorance, but does this mean that if, by some chance, the HTC 10 also includes an RGB LED that a program like LightFlow may be able to make use of the RGB capabilities it possesses?
I'm going to get in touch with the LightFlow developer, to ask him what he knows about how his product functions on the Desire 626 and A9.
Thanks for that great tip!
Click to expand...
Click to collapse
I already said that the 10 includes it .
I don't know how Light Flow works, but maybe it can take advantage of it? I guess the dev would know better than me....

Notification LED?

Anyone see any indication as to whether the 3 XL has a RGB notification LED?

I'd like to know too. Seems like there is no mention anywhere.
Sent from my Pixel 2 XL using Tapatalk

Curious myself, I'll post if I hear anything.

Someone mentioned on Reddit that there was no LED this time

NPuter said:
RGB notification LED?
Click to expand...
Click to collapse
obsanity said:
no mention
Click to expand...
Click to collapse
Chronzy said:
Curious
Click to expand...
Click to collapse
Pixel 3 / 3 XL have no notification LEDs.

Notch, glass back, no headphone jack, bigger screen with more pixels but smaller battery and now no notification LED? It looks worse and worse.

I would have said the same thing a few months ago but ever since I turned it off and just used the AOD for notifications I won't miss it.
Sent from my Pixel 2 XL using Tapatalk

Kisakuku said:
Pixel 3 / 3 XL have no notification LEDs.
Click to expand...
Click to collapse
Ugh. I was hoping they put it under one of the speaker grilles again. So I guess this is the first Google Nexus/Pixel without one? I suppose we should have known this was coming with AOD. I was actually surprised the pixel 2 kept it, and it got the best one IMO since the Nexus One.
obsanity said:
I would have said the same thing a few months ago but ever since I turned it off and just used the AOD for notifications I won't miss it.
Sent from my Pixel 2 XL using Tapatalk
Click to expand...
Click to collapse
I thought I'd find it less useful with AOD display as well, but do not find that the case. Dim monochrome notification icons are definitely not as obvious as a colored notification LED which can be seen with a passing glance.
What would be cool is if a "notification LED" could be implemented into the AOD - i.e. a small clusters of pixels lit up at full brightness with color support. Wonder if that's technically possible.

This was a poor decision on Google's part... I may just keep my pixel XL 2 this time around... the notification LED is tech that does not need to disappear, so much easier to see you have a notification from across the room...

I didn't know my 2XL had one for ages. Why have it off by default?
Also wish it was more aggressive.

Tanquen said:
I didn't know my 2XL had one for ages. Why have it off by default?
Also wish it was more aggressive.
Click to expand...
Click to collapse
They were weening people off the led notification with the P2XL....and promoting the use of the ambient display.
But like some said earlier....ambient display is dim.....there is no better way to glance from afar and know exactly what type notification came thru via the color of the flashing led. That cannot be beaten...I dont need to see and read the notification of the screen....just know I have one and what type it is.
Ambient display is only good for when you in arms reach of the phone to read the screen...at which point you may as well pick it up and look at the phone. It's almost pointless.

Well i guess is a personal thingy, mine is switched off since i got the phone, never use the led, my aod is always on, more than happy with it

misiokicio said:
Well i guess is a personal thingy, mine is switched off since i got the phone, never use the led, my aod is always on, more than happy with it
Click to expand...
Click to collapse
It is a preference.....Im just saying hat good is a display if you cant read it. Most people cant read dimly lit text from across a room.
One thing I dont know is....does the text on the AOD shift positions so screen burn in doesn't occur?

bsg411 said:
It is a preference.....Im just saying hat good is a display if you cant read it. Most people cant read dimly lit text from across a room.
One thing I dont know is....does the text on the AOD shift positions so screen burn in doesn't occur?
Click to expand...
Click to collapse
Haven't experienced any burn in... And myself i dont have a problem with "dimly" screen as my phone is always next to me or with me xd

misiokicio said:
Haven't experienced any burn in... And myself i dont have a problem with "dimly" screen as my phone is always next to me or with me xd
Click to expand...
Click to collapse
I just googled it....the text moves one pixel at a time per minute.....so it will take about an hour to see the text make a significant move....but it does. This is good to know since the new phones dont have the LED.

I thought the same when I enabled aod but after almost a year since I enabled it there is no screen burn where the clock is. I use the display app with a gray color to check for that. The only burn in I see is the notification bar and a slight navigation bar but nothing in the aod area. So I am surprised about that because the differential aging does not work as I thought it would. So movement of pixels seems to be more important than what's on the screen.
Sent from my Pixel 2 XL using Tapatalk