Defy's Flashlight has dead.

nameite

Senior Member
Aug 1, 2011
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I brought a flash for my gf, gonna try install it tonight.

Found a very detailed video on youtube, which shows how open it....seems easy to swap out
 

nameite

Senior Member
Aug 1, 2011
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Ok just to follow up on my last post

I swapped out the flash light

Now everytime i switch the phone on, it gives a blast of flashlight for a split second, then gone again.

And it doesnt work once i get into CM7.1, either flashlight or camera

I'm guesssing something is still shorting the flashlight, so it goes off to stop it from burning each time its switched on?

Anyone have any idea where or how the flashlight is controlled physically/electronically?
 

nameite

Senior Member
Aug 1, 2011
267
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Ok guess no one can help me.

Anyways, after replacing the flashlight, now the flash light works when taking pics.

Originally it use to light up upon switching on the phone, now it seems to go on every now and then, every few minute to every 2 seconds.

The battery is draining very quickly and my gf is nagging and complaining like a biach.

Isnt any electrican online that can check where and how the flash is turned on hardware-wise? Maybe I can replace a cap or something on the board.
 

Motivateme

Member
Nov 30, 2011
42
6
0
like krille said its probably a voltage thing.

in a german android forum someone wrote the same, providing "proof" by mentioning, that in china the defy is named ME525 instead of MB525 in europe/us. could be a hint to different hardware.
Maybe different telephony module for CDMA use, not flshlight...
 

bone101

Senior Member
Jan 6, 2012
692
137
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I replaced my burned led flash light with one orderd on this page :



www.store-show.com

Now it works again

PM me for tech help

Ps.: Im a owner of 4 MB525 ear speaker buzzer pieces, if anybody need one , three of them are for sale

Sent from my MB525 using XDA App with MS2Ginger 3
 
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sbashwin

Member
Jan 23, 2012
5
1
0
Bangalore
I recently flashed the chinese rom to downgrade my defy plus. Later I noticed that my led flash wasnt glowing brightly instead it was very dim. Then I flashed sbf and didn't notice any improvement. Since my defy is still in the warranty period, I will claim for warranty. So I guess you will face a similar problem if you flash the chinese rom :crying:
 

TJKV

Senior Member
Jun 25, 2011
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I recently flashed the chinese rom to downgrade my defy plus. Later I noticed that my led flash wasnt glowing brightly instead it was very dim. Then I flashed sbf and didn't notice any improvement. Since my defy is still in the warranty period, I will claim for warranty. So I guess you will face a similar problem if you flash the chinese rom :crying:
More info about this situation:
1.Camera/LED was never used after the Froyo BL6 SBF was flashed, until it was rooted and a custom ROM (CM9) was installed.

2. After rooting, 2ndinit-ing, and flashing CM9, the boot logo still had Chinese text in it.

3. However many people seemed to have downgraded to Froyo using the same chinese SBF without problems, so this issue seems random.
 

Krassu$

New member
Mar 25, 2011
2
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More info about this situation:
1.Camera/LED was never used after the Froyo BL6 SBF was flashed, until it was rooted and a custom ROM (CM9) was installed.

2. After rooting, 2ndinit-ing, and flashing CM9, the boot logo still had Chinese text in it.

3. However many people seemed to have downgraded to Froyo using the same chinese SBF without problems, so this issue seems random.
i heard its mb due to some other hardware specs in china with different voltage or something for the flash:/
 

TJKV

Senior Member
Jun 25, 2011
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Hey, to check if you have burned the LED, just simple look at it. If you se any black-dot in the yellow thing in the center of the LED, then you have fried your led. (Im electronic technician). That could be made by over-current (if you get more voltage, then the current will be great, and the led just could support it).
If not, then it might be a ROM problem (means diffrent Drivers, or other gpio used for that). If another gpio was used, then you have to check if that pin is marked as OUT. But I don't think that is your case.

Anyway, to do a quick test, on a Terminal emulator, put the following:
(I think you'll need to be root)
Code:
echo 1 > /sys/class/leds/torch-flash/flash_light
That should turn on the Defy flash light. At least, that path is working on my stock ROM.

To turn off (in case it worked), just do:
Code:
echo 0 >  /sys/class/leds/torch-flash/flash_light
As I've tested, you might have to restart the phone if the flash light starts to "flash".
Over current rather than voltage, according to the above person. Either way, using a "safe" /system (cm9) also caused the problem, so it probably originates from the version 6 signed froyo kernel from the Chinese rom...




i heard its mb due to some other hardware specs in china with different voltage or something for the flash:/


Sent from my MB525 using xda app-developers app
 

bufa

Senior Member
May 11, 2008
249
31
0
La Plata
alerossi.com.ar
hello I have a problem, I cant install any custom rom. Only 2.2.2 via sfb

defy green lense

I think I might have installed some custom rom with GB Kernel. But I'm not sure.

The problem started when I tried to go from CM10 to Pikachu, Aroma Installer finished but with an error message about the "Bootimg" (or somthing like that, the message told me to reinstall. I did, but then bootloop started).

After trying all CM roms (bootloop), I flashed Nordic 2.2.2 SFB via RDSLite.

Now froyo 2.2.2 works fine, I can root, instal bootmenu, etc, but when I go to custom recovery and install a custom rom (CM7, CM9, CM10) It goes back too bootloop :(

What could I be doing wrong?
 
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