[Q] LED Flash trouble - Nexus S Q&A, Help & Troubleshooting

I have read some of the troubles in Nexus S LED flash. Most of the people returned their phone and got it replaced. For my phone, I cannot do the same. Below are the details of my trouble with the LED flash.
Before, my LED flash works fine but after installing an app from Play store, an app called Tiny Flashlifht + LED by Nikolay Ananiev.
Since then my flash comes and goes. When I use it while taking a pictures, when the camera focuses on the target, the LED lights but then when taking the shot, it doesn't.
Then I tried to install another after deleting the app. An app called Brightest LED Flashlight by Surpax Technology Inc. I tried to use it but my LED only lights up a little. Like a tiny dot of light on its LED bulb. It flickers but not very bright.
So, is this hardware or a software issue. When my LED flashes while taking pictures, it is very bright though.

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[Q] Camera flash light LED behaviour ?

Hi,
I was wondering if this is normal on my Touch PRO.
When I launch "Camera" app, go to settings and tap "Flash Light", the LED turns on and lights constantly until I tap it again to disable.
Accoring to manual (and common sense) it should allow the LED to make a high powered burst when shooting photo, and not just light constantly (I thought that 'torch' apps are for that).
In few words: My Touch PRO "flash light" LED works like a torch, not like flash.
Do you get this behaviour ?
Is it normal for a LED-enabled camera phone ?
Cheers
dont have a pro yet, but from what Ive read and seen on reviews its supposed to do that. It stays on then flashes when you take a picture. No need for a torch application..
hi
I get the same, when you turn the flash on the light comes on, when you take a pic it flashes gos out for 2-3 sec then turns back on.
This is normal behaviour. It was on my Hermes as well. The LED is enabled, but not at "full" extend. The light is meant so that the camera can focus when you are taking a photo in a dark environment. At the moment you make the actual photo, the LED lights up brighter for a second.
This behavior is necessary for taking pictures. The camera app assumes that if you turn on the flash, the ambient light level is low.
The flash then lights up at a medium level to help you frame the shot on the screen (that would otherwise be too dark or too noisy to see anything).
Finally, once you actually take the picture it flashes at full power to allow for a decent exposure.
I hope it helps.
Does exist any shortcut or program to turn on the flash light without starting up the Camera app for using it as a torch?
at the moment, no.
The usual suspect, VJCandela, doesn't seem to work with the Raphael just yet.

LED camera light work like an actual camera flash?

I used to have a BB curve that also had a camera LED but it worked like a flash when I hit the button to take the picture the LED would automatically flash to take the pic..it's annoying that on my Fuze I have to manually turn on/off the led light..I was wondering if there's some software or a patch that will make the camera LED behave in this manner?
no. cannot.
it's trying to replace sun light with a match
a led is many times weaker then a real flash
which would temp blind you if it was on all the time
and you looked into it
where a led is more like whats your computer, tv, dvdplayer or the likes
got just a bit stronger but not more then 80 lumen
where a real flash can have about 5000 lumen
so sure one can program the led "flash" to turn on and close like a real
flash does but it would give no effect
euklid said:
I used to have a BB curve that also had a camera LED but it worked like a flash when I hit the button to take the picture the LED would automatically flash to take the pic..it's annoying that on my Fuze I have to manually turn on/off the led light..I was wondering if there's some software or a patch that will make the camera LED behave in this manner?
Click to expand...
Click to collapse
euklid, I am with you. My nokia use to do that. It is a horrible design and pain to have to turn the light on each time to use it. It is the same type of light set up in my nokia as on the fuze, just that nokia knew how to use it properly. It is funny with all the mods available for the Fuze, I would have thought that would have been the first thing somebody changed. And, I thought I was the only person this aggrevated the sh!t out of.....
Rudegar said:
it's trying to replace sun light with a match
a led is many times weaker then a real flash
which would temp blind you if it was on all the time
and you looked into it
where a led is more like whats your computer, tv, dvdplayer or the likes
got just a bit stronger but not more then 80 lumen
where a real flash can have about 5000 lumen
so sure one can program the led "flash" to turn on and close like a real
flash does but it would give no effect
Click to expand...
Click to collapse
I don't want it as bright as a real flash of course..but the Blackberry curve has an LED also and it works well as a "flash"..the brightness of the LED the Fuze has now when u take the picture is fine for most cases, I've tested taking a few pics in a dark room and they come out decent..my point is that why is there no auto setting..so the LED goes from OFF to its max brightness as soon as you press the button to take the picture and then shut off automatically after pic is taken..a feature that the BB curve and some other phones have..I wish someone would make a mod to the camera software to do this..couldn't you use the Fuze's light sensor to determine if a flash is needed or not..
I suppose it would be possible but don't really see how one could do it with the existing software without having the source-code people would have to trail and error using a sex editor
one thing is to use a hex editor to alter stuff already in the code but to add new stuff like tieing the led to the capture itself not sure how much work it would be to change the cam app sounds like a great deal
about using the light sensor then sure but could be misleading as
the light sensor is facing the opposite direction
Any news on this? Has anyone tried to write a patch or program? Any reg hacks? I'm desperate!
No use for it.
As said before by one of us....
A real camera have better sync when taking a shot and opening flash.
Think. Our phones have a delay that is not controlled and varies depending on the auto focus and light condition, that is why they set it to be on before taking the shot.
Maybe we will see a complete PPC from HTC soon, today already exist the technology to have more than 5 MP camera with a decent flash, maybe the TouchPro 3 will have it, that is why I will stick with my Fuze unless I have to forcefully buy a new device like the TP2 in order to deduct it from my Taxes. Lets see.
Hi:
Since it is not possible for the light to flash automatically, is there any way to set it to always on (while in camera mode of course), so it does not have to be turned on each time I use the camera (I pretty much use it while out with friends in the evening, so it's pretty much always dark)?
Thanks!
Problem with that.
cincy1020 said:
Hi:
Since it is not possible for the light to flash automatically, is there any way to set it to always on (while in camera mode of course), so it does not have to be turned on each time I use the camera (I pretty much use it while out with friends in the evening, so it's pretty much always dark)?
Thanks!
Click to expand...
Click to collapse
As far as I know.... the reason that is not set to always on is because you may damage the LED if you keep it on for a long time or X-period of time, but there is an application(hTorch) that lets you use the LED as a Flashlight, I already try to have both the camera and hTorch open at the same time and the camera failed to open. Any way when you use hTorch for too long the light start flickering.
udgn said:
As far as I know.... the reason that is not set to always on is because you may damage the LED if you keep it on for a long time or X-period of time, but there is an application(hTorch) that lets you use the LED as a Flashlight, I already try to have both the camera and hTorch open at the same time and the camera failed to open. Any way when you use hTorch for too long the light start flickering.
Click to expand...
Click to collapse
Oh, I think I did not explain myself correctly. I don't want the light ALWAYS on. And, I do use Htorch for when I need a flashlight. What I guess I should have said is in camera mode, there is a setting to turn on the light. Is there a way for this to be activated every time the camera is opened? Not as a flash per say, just as the default setting for the light?
Thanks!

[Q] [Request/Question] Flashlight/Tourch app that works with the indicator LED

Hi,
I've been searching the world, the interwebs and on this forum... but nothing seems to come close to what i actually (need) want for my HTC Hero, Since i find myself blind at night it can be challenging to avoid obstacles at night and i have to either turn on the light or use my phone with a "hey look! my phone is a flashlight / tourch" app that uses my screen by turning it bright white (witch hurts my eyes, wakes my GF and drains my battery).
One night i realized that my indicator led (at that time green) was enough light to successfully navigate the dark bedroom at night, without waking my partner... but allas it only showed up when it was done charging and still plugged into the adapter / computer, unfortunately many a usb cable do not reach beyond 1 meter. and i was again forced to use the "hey look! my phone is a flashlight / tourch" app witch got me into a lot of trouble again...
of course i tried the look my phone is a flashlight white screen apps but they tend drain the battery real quick and anoy my partner.
in short... i'm looking for an flashlight app that uses my indicator led instead of my screen or the non-existent camera flash LED.
can anyone here point me in the right direction or make an app like this one
I would be very grateful
Cheers
R.
I am unsure if you can control a hardware LED. I will look into it.
thx that would be awesome, thanks in advance
So yeah, screen flashlight apps let you control the brightness, and the one I used long ago, also lets you control the size of the area, color, etc....
that might be so but the screen flashlight is imho anoying and i would prefer to use the green LED
bstijl said:
[...]
in short... i'm looking for an flashlight app that uses my indicator led instead of my screen or the non-existent camera flash LED.
[...]
.
Click to expand...
Click to collapse
I think you can only control it when you are rooted and it is very device dependent how this is done. But yes it can be done... Basically it comes down to finding the right files in the /sys directory that are controlling the led(-s) and output something to it (usually a 1 or 255) to switch it on. (Maybe this is some info that other developers can use).

[Q] Can the LED lights be manipulated to be a torch?

Hi,
A naive question for developers.
Can the LED light on the front be manipulated through an app
to function as a torch?
Regards,
Sam
The LED lights really aren't that bright (compared to the Droid1's or Droid2's "Flash" for the camera).
I think they were working on the LED manipulation, but ran into issues. May be resolved now... "Torch" will probably not be possible (as the LED is just a dim notification light), but possibly...
The only lights that can be used as a "torch" would be an LED flash, as that is the only light that is bright enough, however the Sidekick does not have an LED flash, and therefore does not have any LED to use for this.
Short answer: no.
thanks for this information mate

Bank app says no camera if flash is on

Not really a big problem, but today I went to deposit a check using my banks app. As usual, I turned on the assistive light on before taking the pic of the check.
Quite surprised when the app said their was no camera..
A bit later I tried it again this time without the assistive light on, it was just fine.
Just need to have better lighting without using the assistive light in the future.

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