Pathetic torch - Xperia Z2 Q&A, Help & Troubleshooting

Hi,
I just wondered if there is any way of increasing the brightness of the torch? It's crap.

dayloon said:
Hi,
I just wondered if there is any way of increasing the brightness of the torch? It's crap.
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Click to collapse
it is posible but i havent tested at all to see if its safe

I got a prototype mod for increasing the LED brightness, but I'm not going to release it. I think it significantly decreases the LED's lifespan.

Envious_Data said:
it is posible but i havent tested at all to see if its safe
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Hi,
Could you please share on how to do this? I will test it out.
Thanks

kamalaggi said:
Hi,
Could you please share on how to do this? I will test it out.
Thanks
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Click to collapse
ill be testing some more when i can however its very dangerous for me as i wouldent be able to aford a repair or a new z2 for a very long time
@Jackos
i descovered the LED hates voltages being too low, (same goes obviously for too high)' it doesnt dim down but it just doesnt light up
i also descovered the LED gets hot as it is being on for about 1-2mins

Envious_Data said:
@Jackos
i descovered the LED hates voltages being too low, (same goes obviously for too high)' it doesnt dim down but it just doesnt light up
i also descovered the LED gets hot as it is being on for about 1-2mins
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I think that overall it's a low quality LED.
Well, if you burn that LED, you can still send your Z2 for a warranty repair

Jackos said:
I think that overall it's a low quality LED.
Well, if you burn that LED, you can still send your Z2 for a warranty repair
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i found i had no problems after lowering brightness, heating is gone totaly but it was less bright, ive lowered brightness in my rom but im going to make the flash for camera alot brighter, perhaps stock or more by a tiny bit

Increasing the brightness of torch can be harmful for the Hardware as it may overheat and cause problems with the Camera.

iSiddharth said:
Increasing the brightness of torch can be harmful for the Hardware as it may overheat and cause problems with the Camera.
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wont do anything to the camera, it will damage Led light only

iSiddharth said:
I read that somewhere when I was searching for same topic.
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they are seperate units with their own information.
the camera app has control of the LED flash, the led flash has its own settings in the system which determines its brightness and voltage.
the camera hardware does not have anything to do with flash aside the flash assisting camera use.

Related

LED as notification indicator?

So I just noticed there is a red LED on the phone, However I've only seen it enabled whilst in call (Am I the only one who hasn't noticed it before?) So anyway, I'm curious to weather someone would be willing to go about and help trying to be able to have it on when you have a notification, Or if there already is a mod? Anyway, Thanks
That's a proximity sensor, not led
MacaronyMax said:
So I just noticed there is a red LED on the phone, However I've only seen it enabled whilst in call (Am I the only one who hasn't noticed it before?) So anyway, I'm curious to weather someone would be willing to go about and help trying to be able to have it on when you have a notification, Or if there already is a mod? Anyway, Thanks
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Click to collapse
It's a proximity sensor,this sensor ensures that the screen turns off when you are in a call.
Oh Damn, Dissapointed Would you be able to have it on anyway? But I guess it'd kill the battery?
That Red LED is barely noticeable unless you are in complete dark!
Anyway, you should read this,
http://forum.xda-developers.com/showthread.php?t=1204031&highlight=Everything+BLN
Regards.
ithehappy said:
That Red LED is barely noticeable unless you are in complete dark!
Anyway, you should read this,
http://forum.xda-developers.com/showthread.php?t=1204031&highlight=Everything+BLN
Regards.
Click to expand...
Click to collapse
Ahhh okay Well thanks for the link

SE Live With Walkman Screen Flicker

I have SE LWW i love this phone but what i have notice that it has some problem with the sensor that change the brightness according to the light conditions.
What happens is that sometimes the screen start to flicker that is continuous jump
between low and high brightness which is very irritating.
So please share if any one of u face the same problem or know anything about it.
I m using LwW from yesterday but havnt seen this kind of issue may be needing more time to cross check, will update definitely.
abhishekcal said:
I have SE LWW i love this phone but what i have notice that it has some problem with the sensor that change the brightness according to the light conditions.
What happens is that sometimes the screen start to flicker that is continuous jump
between low and high brightness which is very irritating.
So please share if any one of u face the same problem or know anything about it.
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Click to collapse
yeah mine too.
i think it's coming from the device light sensor, n we can't fix it until sony put an update.
sent from my Walkman
Weird had the lww too and never had that problem. Do the ones that have it updated your phones?? I am currently on lasan's rom but never encounter it.
thanks for replying guys but i think it is the ambient light sensor problem that means it is a hardware problem so it might not get solved by update.
Be positive most of the times it is a kernel related problem or take to a service center and see if they give you a new one
Live With Walkman
Live with walkman has a ambient sensor in it which changes light accordingly
but i never noticed any flicker in my phone my suggestions would be take the
phone SE service center
the flicker shows when u look at screen from side. but from infront of the screen, it's hard to see.
sent from my Walkman
abhishekcal said:
I have SE LWW i love this phone but what i have notice that it has some problem with the sensor that change the brightness according to the light conditions.
What happens is that sometimes the screen start to flicker that is continuous jump
between low and high brightness which is very irritating.
So please share if any one of u face the same problem or know anything about it.
Click to expand...
Click to collapse
I confirm this.
When brightness is not full(I used on half on Stock and Hybrom ROMs), then in some conditions the screen indeed does flicker a bit.
That is caused by ambient light sensor, which detects many different light levels at some point, that is the reason for changing screen brightness so much at that time.
Currently, I am not aware of solutions for this, as I do use custom ROM, where I haven't noticed it yet.
chepoz said:
the flicker shows when u look at screen from side. but from infront of the screen, it's hard to see.
sent from my Walkman
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Click to collapse
I my case the flicker is noticeable from front also.
I think i have to take it to the service center.
abhishekcal said:
I my case the flicker is noticeable from front also.
I think i have to take it to the service center.
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Click to collapse
Is not a bug, most other phones have it also, that means light sensor works.
It shouldn't damage your phone.
Sent from my WT19i using xda premium
Dude here is the solution..i have the same probs..but i havent tested it as it reqires root..so check it it should work as posted by athor
https://play.google.com/store/apps/...uYW5kcm9pZC5EaXNhYmxlX0F1dG9fQnJpZ2h0bmVzcyJd
I actually also experience this problem on my xperia active, but it doesn't bother me too much though.
Sent from my ST17i using XDA
Yes the same problem is with me too!!

blink screen

Hi guys.
i have htc rezound and my screen phone is blinking when i touch lcd
Indeed , when i touch screen after a moment my screen phone is blinking like the brightness is decrease then increase
and i think its for sensors
anyone can help me???
keyone72 said:
Hi guys.
i have htc rezound and my screen phone is blinking when i touch lcd
Indeed , when i touch screen after a moment my screen phone is blinking like the brightness is decrease then increase
and i think its for sensors
anyone can help me???
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Click to collapse
Go into Settings -> Developer Options and make sure "Show surface updates" is not ticked... what you are describing sounds a lot like it is on.
00
acejavelin said:
Go into Settings -> Developer Options and make sure "Show surface updates" is not ticked... what you are describing sounds a lot like it is on.
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no man it is not like this
just very very quickly brightness is decrease then increase
and it is not my problem just
my friends have this problem like me
they say this problem is for light sensor
but my sensor is work very well
keyone72 said:
no man it is not like this
just very very quickly brightness is decrease then increase
and it is not my problem just
my friends have this problem like me
they say this problem is for light sensor
but my sensor is work very well
Click to expand...
Click to collapse
Sounds like brightness is set to Auto. Set it to manual and it should stop doing that. But you'll have to change it if it's too bright out or if the screen is too bright inside. Not usually a problem for me, I keep mine pretty low all the time. Saves on battery too.
0000
azbeerhugger said:
Sounds like brightness is set to Auto. Set it to manual and it should stop doing that. But you'll have to change it if it's too bright out or if the screen is too bright inside. Not usually a problem for me, I keep mine pretty low all the time. Saves on battery too.
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I did these things.
my friend change LCD of phone
and say this problem is not for LCD or touch
just say it is for sensor maybe !!
and i change the Rom and other works but not resolved
00
no body ??
Sorry... Got nothing, you covered every possibility I can think of besides hardware failure, since you turned off auto brightness that is the only sensor that would be involved. You mentioned the panel was replaced and this occurs when you touch the screen, possibly a bad/loose ribbon cable to LCD panel?
Sent from my Nexus 4 using Tapatalk

[Q] Screen flicker problem

Hi everyone.
I love the TrueSmart but I've got a problem with the screen.
There's a flicker on it. The whole screen flickers and it's particularly noticeable when the background is white or any other light colour.
Has anyone else experienced this and what are my chances of getting it fixed or replaced under warranty?
Thanks for any advice in advance,
HRH.
sounds normal, mine too
jeremy.chan said:
sounds normal, mine too
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Shouldn't be normal though. Anyone else? In fact does anyone have a TS with a screen which doesn't flicker?
DrHRH said:
Shouldn't be normal though. Anyone else? In fact does anyone have a TS with a screen which doesn't flicker?
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now THAT'S not normal lol
jeremy.chan said:
now THAT'S not normal lol
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Sorry, your comment is really unclear - does your screen flicker or not?
DrHRH said:
Sorry, your comment is really unclear - does your screen flicker or not?
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Click to collapse
FWIW mine does not, at least I've not noticed it - recent batch - does screen brightness setting have anything to do with it?
Ozpeter said:
FWIW mine does not, at least I've not noticed it - recent batch - does screen brightness setting have anything to do with it?
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Now that's a helpful comment. Thank you. If I set the screen brightness to maximum then the flicker goes away. Not ideal, as I've never set any device to max brightness in my life. Never needed to. But at least the flicker goes away.
I just hope it doesn't make the rubbish battery life even worse.
DrHRH said:
Now that's a helpful comment. Thank you. If I set the screen brightness to maximum then the flicker goes away. Not ideal, as I've never set any device to max brightness in my life. Never needed to. But at least the flicker goes away.
I just hope it doesn't make the rubbish battery life even worse.
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Click to collapse
Ah. I was thinking more in terms of down rather than up (but I didn't say so...). Indeed, it's bright in the first place and raising it will probably have an impact on battery life.
I think Lokifish reported some time ago that the screen was ridiculously over bright even at the minimum setting and that there was no change in brightness if raised over 50%.
I used Lux on mine to drop the brightness way into negative values. I have noticed no annoying flickering, but there were early reports of nasty flickering on some samples back last Fall.
Sent from my Nexus 5 using Tapatalk

[Root] [All Variants] Altered calib.cfg for vastly improved Assertive functionality.

So I, at first, thought Assertive wasn't working/enabled on my V20 but it turns out the stock settings are just pathetic. I spent some time adjusting the config file and had a few fellow V20 users test out my changes and they have all reported back that it works fantastically now.
For Assertive to function, your phone MUST be set to 'automatic' backlight control.
Decompress and copy my file to your phone and replace the calib.cfg located in /system/media/display/. Make sure to change the permissions on the replacement file to 644.
Reboot and enjoy
Test out in direct, bright sunlight. You'll be surprised.
Let me know your results in the poll and in comments.
Thank you for your work brother
what does this do exactly?
dimm0k said:
what does this do exactly?
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Click to collapse
Assertive Display was designed by APICAL. They are owned by Qualcomm and Qualcomm has built the tech into their SoCs.
Basically, it adjusts the gamma curve, white balance, contrast, etc. of the display based on intensity and amount of ambient light. It can take a display that would be utterly crushed by sunlight and make it readable.
Try it out.
Colours get really washed out in the sunlight but i can see the screen better
Builtfordtough1 said:
Colours get really washed out in the sunlight but i can see the screen better
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yeah, product of how it works. I'm still fiddling with it. I'll update when I decide different settings work better.
i hope you dont mind if i use your file in my rom? i can give creds of course
elliwigy said:
i hope you dont mind if i use your file in my rom? i can give creds of course
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Click to collapse
Sure
This is a great MOD. Thank you OP for messing around with this for us! Great work! Looking forward to a few tweaks to optimize it, but works great!!!
The problem I have is in low light environment. Screen goes to zero as soon as the light gets dimmed. I can't think of any environment that I would want the screen at zero. That's just too dark for my old eyes
justthefacts said:
The problem I have is in low light environment. Screen goes to zero as soon as the light gets dimmed. I can't think of any environment that I would want the screen at zero. That's just too dark for my old eyes
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sounds like another issue lol.. mines never gone to 0 on auto and this is on multiple roms and kernels and even my vs995 was very first vzw phone to be dirty santa'd
elliwigy said:
sounds like another issue lol.. mines never gone to 0 on auto and this is on multiple roms and kernels and even my vs995 was very first vzw phone to be dirty santa'd
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Click to collapse
I'm on T-Mobile H918. Mine jumps from 50 to zero as soon as the light gets dimmed .
Tap the light button in the pull down status bar. It corrects this issue. (Right above where it says 68%)
dfogelstrom said:
Tap the light button in the pull down status bar. It corrects this issue. (Right above where it says 68%)
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That would bring it up to 50% which would be too lit for a dark place
justthefacts said:
That would bring it up to 50% which would be too lit for a dark place
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Okay, then I'm having the same issue lol. I thought it was different from before. Just trying to help out ?
is this happening after changing the calib file out with mine?
helf said:
is this happening after changing the calib file out with mine?
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Click to collapse
Yes
ah OK. Did you verify that the file's permissions are set to 644?
helf said:
ah OK. Did you verify that the file's permissions are set to 644?
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Click to collapse
Yes. Do you get a different behavior on yours?
justthefacts said:
Yes. Do you get a different behavior on yours?
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yes. mine only goes to 0 indoors if it's totally dark. have you tried moving your slider up a little like to 10% while automatic is set? that'll leave it automatically adjusting bit with a +10% to whatever it automatically sets

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