[HELP] Short-circuit fault detected when running flashlight
 

Short-circuit fault detected!
Turning off Flashlight.
I have this pop-up when I use flashlight , the time interval is randomly(from few swconds to minutes or not at all) , when I take photos I have full flash blast(no error) , I don't think it's a hardware problem , no water and no impacts on the phone , this thing started today , any hints on this ?

Re: Short-circuit fault detected!
 

Take a tooth brush dip the tip in ethyl alchol clean the board like you brush your teeth but gently with mild preassure and use a needle to clean every contact points you find:)
i think somewhere moisture accmulated and oxydised the parts .
Btw it wont do any harm cleaning it:)

Re: Short-circuit fault detected!
 

I need a hint of what is sensing the short-circuit , the flash pcb is pretty simple ,but what is sensing that short-circuit

Re: Short-circuit fault detected!
 

no idea :) but surely somebody here knows it:)
btw its not wise to keep using it like that i think . So i recomended cleaning:)

Re: Short-circuit fault detected!
 

I have no idea what could be causing this, other than what the warning tells you. I did, however, notice the spelling mistake in "circut" that you yourself I assume auto corrected in the topic title. The only google hits point to the patch for flashlight. Have you seen it?

Have you tried a reinstall to see if the warning popped up again?

Re: [HELP] Short-circuit fault detected when running flashlight
 

I was typing from the phone when I started this thread , the question is: it's really detecting a short-circuit? and if it detects the short-circuit , where is it? how do it get detected ?, reading what , from where? with the help of what? I'm reading the datasheet but no luck yet ,but the software part , from where does the pop-up appear ? how it's triggered ? many questions , to many I fear

Re: [HELP] Short-circuit fault detected when running flashlight
 

Ah, I've been playing around with the flash LEDs recently, so I know a little bit about it. I'm not sure how many flashlight apps are out there right now, but I suspect all of them are using the "Video for Linux 2" (V4L2) interface. That interface allows you to query the hardware for a variety of error conditions, including timeouts, overvoltage, overtemperature, and short circuit.

From the ADP1653 data sheet, there is this info about the short circuit fault:

It appears that this fault condition is specific towards the use of the LEDs in Torch mode, rather than Flash mode.

So far as I know, V4L2 only allows a single Torch current setting, so you shouldn't be able to cause a false trigger the way that they describe. However, I guess that would depend on how the app is connecting to the LEDs.

Quick question: when this error first crops up, do the LEDs come on for a brief period (half a second or so), or does the error message come up immediately?

EDIT: Ah, actually you've already answered that question in the first post. :) If it was a fault in how the software was accessing the LEDs, I would assume the error message would come up immediately. The fact that the LEDs stay on for a while may indicate that there is, in fact, a short circuit going on somewhere...

Re: [HELP] Short-circuit fault detected when running flashlight
 

Or a false positive caused by a sudden change in the LED current, such as might happen if the battery is on its last leg. Which might explain the erratic nature of the problem. One question: does it ever happen when on a charger? The solution may be as simple as getting a new battery...

Re: [HELP] Short-circuit fault detected when running flashlight
 

same thing on charger , but a strange problem , the torch lights up only one led while camera fires up both when taking pictures
i'll replace the led , but the problem is that it fires up well when I take photos

Re: [HELP] Short-circuit fault detected when running flashlight
 

Personally, I doubt that the LED is bad, especially if it lights up when in flash mode. More likely, there is something causing a short circuit -- i.e., something like a fragment of metal stuck somewhere, allowing electricity to flow where it shouldn't.

But I will bow out here; I know a bit about coding, but I have no clue about physically messing around with hardware. :)

Re: [HELP] Short-circuit fault detected when running flashlight
 

what the f..k , I installed u-boot and that error disappeared, what the hell is happening ? hardware +software , or the hell knows ,I will take the phone to phone service to give him a nice bath :D, that seems the proper solution , if the problem persist I will reflash, thank you all for your reply.:)

Re: [HELP] Short-circuit fault detected when running flashlight
 

It's probably not a good idea to overclock to twice the speed of a stock device. Even if you are using starving voltages.
Overclocking and Undervolting isn't great for the hardware.

Just a thought.

Re: [HELP] Short-circuit fault detected when running flashlight
 

SWB has a point, especially on the 'starving'. Fast and loose is how I'd describe the approach to overclocking and undervolting on this site. Best practice AFAIK is to run GIMPS mprime in the background to check for errors at least 24hrs at a given Voltage, Freq pairing. I found most recently (undervolting a Dothan thinkpad with a patched kernel) I was getting errors from pairings a couple of notches above where I'd see any noticeable effect on the computer in actual use.

Re: [HELP] Short-circuit fault detected when running flashlight
 

Which isn't related to short circuit in LED's, at all ;) But, I'm surprised that *anyone* ever used things like "starving" or any other "profiles". It was said zillion of times, that they're depreciated things, dating back to times, when kp was maintained by titan, and dinozaurs walked earth.

Nowayda using KP (which is what he is using for sure), smart reflex works up to 900 mhz. If he is using higher frequencies, no profile will help him anyway, as they were not set up for more than 900 mhz (above got some randomly inserted valued, done without any testing). Even before re-calibrated smartreflex times, those profiles were known to be set up on total random guesswork, without any real testings.
---

More on-topic - well, judging by symptomes, like Copernicus said, you really got/had short-circuit. Either you've shaked it off, or it is still there, and will manifest itself on different temperature/pressure conditions. Considering how random effect is, your short must be very thin.

Still, be vigiliant, as leds have + connected to battery itself. Good thing that leds driver have such protection - IR diode doesn't, which resulted in little sparks in my case, once.

/Estel

Re: [HELP] Short-circuit fault detected when running flashlight
 

Judging by Copernicus' extract from the catalogue, it might be. If I understand it correctly, the chip senses a short circuit condition by measuring the current. At starving voltages the current may be different from expected and confuse the chip. My dying battery theory came from the same direction. Shame on me for not noticing the overclocking.

Re: [HELP] Short-circuit fault detected when running flashlight
 

Even you admit that temperature maybe effecting it.
While it is not "physically" connected, I don't think the heat from the overclock will help at all, do you ;)

I completely agree Smartreflex and 900Mhz is the absolute most anybody play with... and I don't overclock.

Re: [HELP] Short-circuit fault detected when running flashlight
 

switched to ideal voltages, no effect ,soon I'l take my n900 la service if that doesn't fix the random thing short maybe i'll reflash it