Led and vibrate = battery destroyers - Samsung Epic 4G Touch

I have been frustrated by battery life with the ics leaks, getting maybe 6 hours on a charge.... I thought it was maybe bad batteries but...
Turning off LED notifications and vibration on keypress has me at 7 hours of normal usage and at 91% battery.
Holy crap you guys, can it be this simple? Is anyone else seeing this kind of improvement?
Btw, gb roms never drained like I was seeing, even with keypress vibration on....
Sent from my SPH-D710 using Tapatalk 2 (FF09 Stock ICS)

I might try this but I do like haptic feedback. The LED I would question on being part of your gain in battery life though. It's power draw can't be much if even noticeable. For one they're not very bright (remember how bright Blackberry LED's were?) and also the flash timing is long but with a very short duration.
Just as a reference. My dad has this Pink Floyd CD with a red LED on the spine of the case. It's powered by 1 AA and that damn thing blinked every 2 or so seconds 24/7 for about 12(ish) years.
That vibe motor though... well I had a joke about women, BOBs, and batteries but I lost it. The words are there, you figure something out.

Someone else posted in another thread that it is not the led itself that drains battery but the fact that keeping it blinking prevents the phone from going into deep sleep. (I assume it is checking to see if there are active notifications.) That WOULD explain the difference...

I believe notification led blinking rely on a software timer thus keeps phone from going into deep sleep mode currently
Sent from my SPH-D710 using Tapatalk 2

Yes, I usually did this on the leaks. Turn off all sound, all vibrations (haptic and notification) dim the screen to minimum and remove the led and you can last 24hours. You will miss every phone call. But who has time for phone calls? Anyway, battery life is fine on cm9 a5 even if I forget to charge at night.
Sent from my SPH-D710 using xda premium

I've been keeping up with this myself with great interest. Led notification is pretty valuable for me as i typically work in a noisy environment. Anyone want to comment on whether this can be "fixed" once source is released.
Sent from my SPH-D710 using Tapatalk 2

ClutchR1 said:
I've been keeping up with this myself with great interest. Led notification is pretty valuable for me as i typically work in a noisy environment. Anyone want to comment on whether this can be "fixed" once source is released.
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
It might be fix once source is release as for me I dont use the notification led light at all if im away from my phone I just hit the power button and see if I missed anything whenever I get near my phone but luckily my phone is always on me
Sent from my SPH-D710 using Tapatalk 2

http://device.sprintpcs.com/Samsung/SPH-D710/FF11.rdf
it has to stop sometime, doesn't it????
I feel so bad for our devs.

Can someone tell me where the led option is? I'm on AOKP
Sent from my SPH-D710 using xda premium

Smurphjw said:
Can someone tell me where the led option is? I'm on AOKP
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
On stock:
SEttings|Display|Pulse Notification Light

LED is known to cause wakelocks on ICS roms

Related

Flash ligh

Ive downloaded a few different flashlight apps such as brightest flashlight, n torch but they don't stay on for no longer then minute or two.
What's a flashlight app that works with our phones n stays on till I tell it to shut off not when it decides to.
Sent from my SPH-D710 using xda premium
bigfdaddy said:
Ive downloaded a few different flashlight apps such as brightest flashlight, n torch but they don't stay on for no longer then minute or two.
What's a flashlight app that works with our phones n stays on till I tell it to shut off not when it decides to.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
They turn off to protect your phone...
Who would want the camera led on for a long time?
I thought Brightest flashlight had duration options.
Sent from the future.
Well I would like more then a minute use....sometimes a minute just not long enough...so I didn't know if it was the phone doing it or the apps.....
Sent from my SPH-D710 using xda premium
I use tiny flashlight + led it works perfectly, and has a widget.
Sent from my SPH-D710 using Tapatalk
Ok thanxs will try it .....
Sent from my SPH-D710 using xda premium
If you need a flashlight that bad, you should probably just buy one of those cheap LED flashlights for $15.00 rather than risk damaging the LED on your phone. I thought that using your flash as a flash light for a long period of time regularly could actually burn out the LED because it was not made for that.
Mship said:
If you need a flashlight that bad, you should probably just buy one of those cheap LED flashlights for $15.00 rather than risk damaging the LED on your phone. I thought that using your flash as a flash light for a long period of time regularly could actually burn out the LED because it was not made for that.
Click to expand...
Click to collapse
I don't know why I totally overlooked burning out the LED. I actually used mine a few times but it was for 30 seconds. I was using Tesla LED
Sent from my SPH-D710 using xda premium
I've got plenty of l.e.d flashlights but sometimes in a pinch the cell comes in handy and it never been on for Max of 10 mins...so please keep sarcasm to a minimum thnxs...
sent from my fingertips to you're eyeballs ..
Dont understand why you think what I wrote is sarcasm. It was giving you a generally advice of caution. I had an Evo before and everthing I read about using the LED as a flashlight for more than a mintue or two was that it could damage your device.
http://www.androidpolice.com/2010/0...-instead-hands-on-also-works-with-htc-desire/
"A Word Of Caution
The Internet seems to be split on the opinion of whether keeping the LED lights turned on for more than a few seconds can severely damage them or not but some people advise against using any flashlight apps that keep the light on permanently.
I am not a physicist and I won't be pushing the EVO's LEDs to that extreme of a test, but I think a caution for you, our readers, is definitely in order - proceed at your own risk."
I was only trying to help you out.
I put my phone on the cmcordrr app then put flash on and reduce the resolution to as small as it can get and hit record
Sent from my SPH-D710 using xda premium
Mship said:
Dont understand why you think what I wrote is sarcasm. It was giving you a generally advice of caution. I had an Evo before and everthing I read about using the LED as a flashlight for more than a mintue or two was that it could damage your device.
http://www.androidpolice.com/2010/0...-instead-hands-on-also-works-with-htc-desire/
"A Word Of Caution
The Internet seems to be split on the opinion of whether keeping the LED lights turned on for more than a few seconds can severely damage them or not but some people advise against using any flashlight apps that keep the light on permanently.
I am not a physicist and I won't be pushing the EVO's LEDs to that extreme of a test, but I think a caution for you, our readers, is definitely in order - proceed at your own risk."
I was only trying to help you out.
Click to expand...
Click to collapse
Ok sorry was just in a piss poor mood so srry for jumping at ya like that....I had used my mytouch 4g l.e.d flash to do car repairs one night for about an hr and all was fine. If an l.e.d can't stay on for longer then minute or two then why make house hold lights l.e.d and things along them lines isn't all l.e.d the same....
sent from my fingertips to you're eyeballs ..
I can't see LEDs burning out unless you really user the hell pity of it. LEDs are popular because of the brightness and reliability. I can't think of a time i've seen LED anything burn out, not that it isn't possible.
Sent from my Epic 4G Touch.
gtuansdiamm said:
I put my phone on the cmcordrr app then put flash on and reduce the resolution to as small as it can get and hit record
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Exactly what i was about to say,
If the duration of damage is less than a minute, why are we able to record videos with the LED on?
i use Tesla led as well, works well with widget locker, can turn the led on from lock-screen with a nice slider, pretty sure it'll stay on as long as it needs to, also also has strobe and Morse code functions which are pretty cool.
Kikoshi said:
Exactly what i was about to say,
If the duration of damage is less than a minute, why are we able to record videos with the LED on?
Click to expand...
Click to collapse
I was just thinking the same thing...unless the flashlight apps intensify the brightness
Sent from my SPH-D710 using xda premium
Flashlight app..
I've always just used the one that forces your screen to full white. I never wanted to risk burning out the led, either. I've found that the full bright white of the screen has always been sufficient for me.. even with my old HTC Hero.
flashlight hd led works great

Screen comes on after charge complete

My Galaxy Sii X rocks but one thing is driving me crazy!
I use my phone as my alarm clock so its on the night-stand and I charge it every night. I plug it in to charge, hit the screen button on the side to go into Sleep mode, turn off all sync with my emails and everything is good.
HOWEVER, once the phone hits 100% full charge the screen comes on, stays on and very annoying as it not only lights up the room and wakes me up but also I am scared that if left on it will burn the image onto the screen.
I am running with Telus as my provider. Samsung Galaxy Sii X model SGH-T989D
Android version: 4.0.3 Ice Cream Sandwich Kernal: 3.0.8
I have checked my settings and not sure if I am overlooking something or what. Pls help!
Niners77 said:
My Galaxy Sii X rocks but one thing is driving me crazy!
I use my phone as my alarm clock so its on the night-stand and I charge it every night. I plug it in to charge, hit the screen button on the side to go into Sleep mode, turn off all sync with my emails and everything is good.
HOWEVER, once the phone hits 100% full charge the screen comes on, stays on and very annoying as it not only lights up the room and wakes me up but also I am scared that if left on it will burn the image onto the screen.
I am running with Telus as my provider. Samsung Galaxy Sii X model SGH-T989D
Android version: 4.0.3 Ice Cream Sandwich Kernal: 3.0.8
I have checked my settings and not sure if I am overlooking something or what. Pls help!
Click to expand...
Click to collapse
My brother's lg optimus does the same thing. I'm sorry I can't tell you exactly what it is but run a logcat -c before you go to bed with it plugged in. And then when you see the screen is on, run logcat -d and post results. That should tell us what's happening during the night.
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2
elesbb said:
My brother's lg optimus does the same thing. I'm sorry I can't tell you exactly what it is but run a logcat -c before you go to bed with it plugged in. And then when you see the screen is on, run logcat -d and post results. That should tell us what's happening during the night.
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2
Click to expand...
Click to collapse
OK - stupid ques but how do I do that? I am still somewhat of a rookie at this whole Android thing.
Just reach over and turn the screen back off... does it stay off after that?
I've also read that a battery pull has solved this for some. It could also be a specific app you have.. for example the screen lights up when charged but another app is stopping it from turning back off..
Also it could be the charger if its not the one for the phone.
Sent from my SGH-T989 using xda app-developers app
PJcastaldo said:
Just reach over and turn the screen back off... does it stay off after that?
I've also read that a battery pull has solved this for some. It could also be a specific app you have.. for example the screen lights up when charged but another app is stopping it from turning back off..
Also it could be the charger if its not the one for the phone.
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
I do but a little annoying when at 2am the room lights up like a SWAT team raid and I am half asleep! LMAO!
I never thought about the charger - could that be it? I am using the one currently for my HP Touchpad - never thought that a piece of hardware would have anything to do with it.
Niners77 said:
I do but a little annoying when at 2am the room lights up like a SWAT team raid and I am half asleep! LMAO!
I never thought about the charger - could that be it? I am using the one currently for my HP Touchpad - never thought that a piece of hardware would have anything to do with it.
Click to expand...
Click to collapse
I would first try another charger. When I get home I can give ya a quick tutorial on how to do this. I'll make a script for you if you'd like. That way it will be easy.
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2
Sure - that would be great - thanks
I don't understand everyones answer...all s2s light up and tell you the battery is fully charged...it's not an app or bad charger...you should also get a little green battery in the status bar...on gb it would light up and make a loud beep...but for ics they took out the beep cause that was really irritating...darkside's custom rom took that feature out...but it is normal...the screen should go off in your desired time unless you have the screen to stay on when plugged
Sent from my SGH-T989 using xda premium
djtheraven said:
I don't understand everyones answer...all s2s light up and tell you the battery is fully charged...it's not an app or bad charger...you should also get a little green battery in the status bar...on gb it would light up and make a loud beep...but for ics they took out the beep cause that was really irritating...darkside's custom rom took that feature out...but it is normal...the screen should go off in your desired time unless you have the screen to stay on when plugged
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
But that's just it - I have checked all settings and there is nothing to allow me to tell the phone to remain off when charging or when completely charged.
I have a solution... Check my latest thread.
Sent from my GT-I9100 using xda app-developers app
Try using it as a clock. Keeps it dark during the night, plus it's very useful. Just go to clock app, and long press.
Sent from my SGH-T989 using Tapatalk 2
On AOKP 7/15 milestone 6, it never does that, and I charge it ever night.
Sent from the pink Unicorn from the Darkside.

GSM Nexus - Red Notification Light

After leaving the house this morning, I was listening to some music. An hour after leaving I see that my notification led has illuminated red. Now I have no notifications and I've tried a battery pull. What I noticed is when removing the battery the light shuts off but as soon as the battery is replaced it lights back up without the need to power on the phone. The phone still works all fine and dandy however.
As for the light its a bright red and sometime dims to a very faint light but never shuts off.
Sent from my Galaxy Nexus using xda app-developers app
newbcake said:
After leaving the house this morning, I was listening to some music. An hour after leaving I see that my notification led has illuminated red. Now I have no notifications and I've tried a battery pull. What I noticed is when removing the battery the light shuts off but as soon as the battery is replaced it lights back up without the need to power on the phone. The phone still works all fine and dandy however.
As for the light its a bright red and sometime dims to a very faint light but never shuts off.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Did you have a custom Rom? Maybe it's here the problem!
alewillywonka said:
Did you have a custom Rom? Maybe it's here the problem!
Click to expand...
Click to collapse
Yes. CNA.
I reflashed to stock but the light stayed on even while I was flashing and after formatting.
If you're still seeing the red LED during and after a flash you're probably looking at a hardware issue. I'd give Samsung a call to see what they have to say. Even if it's not something they will take for warranty repair, they may be able to get you some relevant information.
Sent from my Galaxy Nexus using xda premium
Pierceye said:
If you're still seeing the red LED during and after a flash you're probably looking at a hardware issue. I'd give Samsung a call to see what they have to say. Even if it's not something they will take for warranty repair, they may be able to get you some relevant information.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
It disappeared about an hour or two ago. I didn't really do anything except wait.
Hmm..
newbcake said:
It disappeared about an hour or two ago. I didn't really do anything except wait.
Hmm..
Click to expand...
Click to collapse
Good to hear. Hopefully that will be the end of it. So you didn't notice any actual performance problems? I wonder if there might be a short circuit in the LED?
Sent from my Galaxy Nexus using xda premium
Did the issue return afterwards?
I have a similar issue, only when i turn the device off the red notification light disappears. And then, when i turn the device on it usually doesn't come back immediately.
But, im getting this red notification light on a daily basis and can't seem to find what it means. Like on your device, everything works fine with no performance issues whatsoever. Also, i'm running stock-rooted Jelly Bean 4.1.2, but the issue started before rooting the device and on 4.1.1. I don't get any notifications on the notification bar, i can't find any app that uses the LED with that color. I don't use any LED control app.
it's annoying, and theres no information at all about this issue.. I already E-mailed Samsung a couple of days ago and didn't get a response from them yet.
I've seen this happen a few times before, after the phone has been exposed to moisture. A good example is when you leave the phone in the bathroom during or after taking a shower...
danger-rat said:
I've seen this happen a few times before, after the phone has been exposed to moisture. A good example is when you leave the phone in the bathroom during or after taking a shower...
Click to expand...
Click to collapse
Well, the phone might has been exposed to small amounts of moisture (it took me really long time trying to remember if it has). What can you suggest doing about it? Close it, take out the battery and put it in a bag of rise for a few days? :/ it's been two weeks since then..
If it is moisture, it will probably clear up on its own. The bag of rice trick may help, if you don't mind going without your phone for a few days...
danger-rat said:
If it is moisture, it will probably clear up on its own. The bag of rice trick may help, if you don't mind going without your phone for a few days...
Click to expand...
Click to collapse
My biggest concern is corrosion. If it builds up it can really mess the circuits up.
I'll try the bag of rise thing and update what's the result..
Thanks for your help!
Mine is the same... Except green.
When power is off... Stays green... Factory reset and still the same... Stock, rooted, unlocked
Any ideas?
Sent from my SCH-I535 using Tapatalk 2
Water damage.
Ever leave your device on the bathroom counter when taking a shower?
Sent from my SGH-T989 using xda premium
Please read forum rules before posting
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jordanishere said:
Water damage.
Ever leave your device on the bathroom counter when taking a shower?
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
So the green light means water damage or the red light? Cant find that anywhere
Sent from my SCH-I535 using Tapatalk 2
I was responding to the op.
You probably both have some sort of internal issue.. corrosion , malfunction, something like that.
Sent from my SGH-T989 using xda premium
jordanishere said:
I was responding to the op.
You probably both have some sort of internal issue.. corrosion , malfunction, something like that.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Ok thanks, not sure what i can do other than hit up samsung for an answer
Sent from my Clean S3
This is what samsung support said via our online chat...
Agent: I have checked all the resources and there is no information about the Green LED light and as you have tried with all the possible steps including Factory reset and see that the issue persists, I request you to contact Samsung Voice support team as they could check your device details and help you further to fix the issue.
Agent: They would file the service request for your phone and you can send the device to Samsung service center to get it inspected and repaired by certified technician.
Agent: I would be happy to provide you with the contact details of Samsung Voice support team.
Agent: You can contact our voice support at 1-888-987-4357, Mon-Fri: 7 AM - 9 PM (CST), Sat: 9 AM - 6 PM (CST).
You: Really? So it does it mean anything
You: Will they charge me?
Agent: Your device would have 1 year warranty from the date of purchase. Please contact the Voice support team and they would assist you and provide the required information.
Just covering the bases... Seems it doesnt mean water specifically but def something they didnt program as an indicator for water damage... Thats what i was curious about
Sent from my Clean S3

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....

What is yellow-ish LED telling me?

When plugged into the charger the LED flashes Red until it's charged...Green when 100%...Blue when I have a notification. Sometimes I find it flashing on odd orange/green spot. What the heck is THAT?
I'm worried about it because in my earlier days of tinkering with electronics I found that when you overdrive a red LED it will look similar--right before it burns out
《sigh》
When charging blinking red very low battery orange is charging above 14% but below 90% green charging above 90%..
Sent from my SAMSUNG-SGH-I747 using Tapatalk
Solid yellow even when in standby & not on charger.
guy48065 said:
Solid yellow even when in standby & not on charger.
Click to expand...
Click to collapse
Check your notification settings. There is an option in some roms to turn on led in different color for different notifications. Try disabling all led notifications, including charging?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I have a stock AT&T s3. I've searched all over my phone for apps that might have custom led notifications, drilled down through all my phone settings. .. nothing in my phone and nothing found online.
This isn't an indicator I see every day -- only occasionally.
It's also hard to describe the exact appearance. It's not a single yellow dot -- it seems to be at least two tiny led's close together bc it looks like a tiny "yin/yang" shape.
... should mention I'm running 4.3... but i think i also saw this on 4.1
I see this on any gs3 rom I run. Not sure either. I just assume it means it's sort of charged, but not in the green yet.
Sent from my SGH-I747 using XDA Premium 4 mobile app
natefish said:
I see this on any gs3 rom I run. Not sure either. I just assume it means it's sort of charged, but not in the green yet.
Sent from my SGH-I747 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yours does it on the charger? Mine flashes yellow when on my hip. I'm pretty sure it's some sort of app notification but I haven't been able to determine WHICH. I've disabled most of the Facebook and eBay notifications--they seem to be the worst offenders for sending out constant annoying dings.
If I can find a way to disable update reminders I'll then be nearly nag-free.

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