I can't adjust the brightness anymore - LG Optimus 2x

Hello,
I made a factory reset using the privacy setting...
And since then, the brightness setting is grey and i can't adjust it.
Why ? What can I do to get this back to normal ?
Thanks.

The light sensor doesn't appear when using Sensor Test app...
Is it dead ?
Brand new optimus is already dead... great.

Hmmm... So you haven't rooted? In that case try to do a factory reset again and if that doesn't work then you I think you should return it to LG.

I don't know what happened, but now I can adjust it again...
BUT, when I select "Auto Brightness", the screen brightness never changes, even when I'm in a dark room...
Also, I still don't see any "light sensor" on the Sensor Test app...
Can you tell me if you see a light sensor on your optimus 2X in Sensor Test app ?
I'm gonna call LG I think... what a shame.

Hmm do you mean this? I can adjust screen brightness normally...

Thanks !
I have all the sensors but no light sensor appears.
It seems the light sensor of my Optimus 2X is already dead !!
I'm gonna call LG... 1 day of use, and already dead. Damn !

Do you use a custom ROM?
The auto brightness isn't working for me on the Cyanogenmod ROM.

I'm not but the previous owner of the phone might have used a cyanogen mod...
Because the system IMEI was different from the one on the sticker behind the battery !
Now it's running V10B stock rom but the light sensor is not detected... It's either dead or it's a firmware problem. I don't know !

For me auto-brightness it´s ok but I can´t change the values with MIUI. All of them are to -1.

Related

problem with keyboard backlight

Hello. At first i apologize for my english.
I have a problem with my milestone. A keyboard backlight starts to work only after I opened it and change the brightness of the screen (through widget, or option menu - it doesn't matter). I have cyanogenmod 7, but it was the same on cyanogenmod 6 and 2.1 oficial firmware.
Thanks in advance for the help.
no ideas? =(
do you have the light sensor turned on? does this happen in bright day or while using in dark?
Do you have the light sensor filter on? Try turning that off. The Milestone doesn't really need a filter on the sensor.
backlight is not functioning
Hi there,
It is not a software issue and I had the same thing. Apparently these backlight breaks easily on these device. Just book it in for repairs.. I asked myself the same question for many months until I gave up and called the Motorola call centre. I hope this helps.
MuF123 said:
do you have the light sensor turned on? does this happen in bright day or while using in dark?
Click to expand...
Click to collapse
it doesn't matter. in both cases it doesn't works.
i think it's a software problem, because when i reboot in recovery the backlight always is turned on.
I have tried a lot of versions of cyanogen and found that a keyboard backlight is working properly only on CyanogenMod-7.1.0-RC5-11.05.21 . I think it's very strange...
Try setting display brightness to 'Auto'. That worked for me.

Need help samsung galaxy s proximity sensor not working

I need help with identifying the problem why my proximity sensor isnt working. This gets annoying because my phone turns the screen off when making a call and you can turn it back on since it thinks something is all the time in front of it. Is it maybe dust? On which side is the sensor located? Is there any software update for a proximity sensor?
If I type in *#*#0588#*#* that runs the proximity sensor test. The screeen goes green, vibrates and stays on 1 all the time( doesnt flick between 1 and 0 if I i move it). What can I do?
I've got a problem with mine aswell. It is always 0 in the test (it can't sense if i put anything over it).
It use to work but suddenly sort of died. I'm not sure what the problem is too but I would like a fix if anyone can come up with one
Funny thing though, my proximity sensor worked fine for 1 call this afternoon, but failed again soon after. :/
Looks like this is one big riddle for the samsung galaxy users. :/
I made a discovery.. If i shone a bright light on my sensor and held it really close to it (like 0.5-1cm away) then the proximity sensor would react and say something is covering it. Only works with a bright light though :/
How bright is that light? May I ask you what are the other 3 values of your sensors?
ciksas said:
How bright is that light? May I ask you what are the other 3 values of your sensors?
Click to expand...
Click to collapse
hmm it was the flash from my digital camera. I think any decent light would work. Try a torch, if that doesn't work try something a bit brighter.
As for the values, which 3 values do u mean?? sorry
Light, magnetic, accelerometer.
Which rom do you have?
ciksas said:
Light, magnetic, accelerometer.
Which rom do you have?
Click to expand...
Click to collapse
oh, the values for accelerometer work fine, the xyz values react as they should when i move the phone.
Light sensor goes as high as 15000 lux when I shine the light on it.
Magnet sensor: 2 and the xyz change and react as they should. same with Azimuth Pitch and Roll.
As for the rom, I'm on darky's 10.1 Extreme Edition
As I thought my light sensor is also faulty. It goes only from 0-22lux
My solution
ciksas said:
I need help with identifying the problem why my proximity sensor isnt working. This gets annoying because my phone turns the screen off when making a call and you can turn it back on since it thinks something is all the time in front of it. Is it maybe dust? On which side is the sensor located? Is there any software update for a proximity sensor?
Click to expand...
Click to collapse
I don't know if this helps, I had a similar problem.. After i made a call my screen would not auto turn back on for me to disconnect the call.
It may have been coincidence, but after i disconnected "Increase volume in pocket", everything started working properly again.
bcosta76 said:
I don't know if this helps, I had a similar problem.. After i made a call my screen would not auto turn back on for me to disconnect the call.
It may have been coincidence, but after i disconnected "Increase volume in pocket", everything started working properly again.
Click to expand...
Click to collapse
Android version?
ciksas said:
Android version?
Click to expand...
Click to collapse
Sorry, I should had given this information. This happened on a S4 (I9505) android version 4.2.2.
I don't know if this particular phone has the same menus has mine, but its how i solved my problem.
Having this issue too.
Nothing mentioned so far has worked for me.
Galaxy S4 SCH-I545 on VZW running 4.2.2.
Unfortunately I don't know when it started so I can't pinpoint any apps as possible triggers. However I have tried out all sorts of apps status bar apps, active notifications apps, launchers (Apex is my current now)

How to Disable proximity sensor.?

Hi Guyz,
My friend dropped his nexus one on the floor and from then on he is facing a weird problem. When he receives a call, when the sensor is turned on, the screen never comes back and it remains black. The only option is to pull out the battery and i suppose the drop has made proximity sensor faulty. He is not a rooted user. Is there any menthod to disable proximity sensor without rooting ? If not how can i fix it after rooting ? Any build.prop changes ?
Thanks,
karthik
RE: how to disable proximity sensor
karthikus said:
Hi Guyz,
My friend dropped his nexus one on the floor and from then on he is facing a weird problem. When he receives a call, when the sensor is turned on, the screen never comes back and it remains black. The only option is to pull out the battery and i suppose the drop has made proximity sensor faulty. He is not a rooted user. Is there any menthod to disable proximity sensor without rooting ? If not how can i fix it after rooting ? Any build.prop changes ?
Thanks,
karthik
Click to expand...
Click to collapse
hey Karthikus , I know this is not a new post, I would like to know if you solved your friends's problem, I have exactly the same, I used a couple of apps to disable the proximity sensor but still no luck, by the way I have the cyanogen mod 7 in my nexus now. the phone is a beauty, but its kinda annoying to have to remove the battery after a few calls, also I'm using a bluetooth headset, wich kinda minimizes the problem, but still not happy. please let me know , or not, I'm planning to build a disable sensors app myself in case I can't fixit. oh, and I tried all the other solutions I could find in google, like cleaning the sensors, (I dismantled the phone already) and enabling other ways to bring the screen up using other methods like trackball press or menu press. no way, still there. so please let me know. if still relevant.
thank you.

The note 8 sun mode kicks in even with auto brightness turned off

Ok guys so I need to know if there is a sensor issue with my phone .I don't use auto brightness no more because if you go in the sun the brightness overrides itself to brighter than max brightness and it is the reason why I've had burn in 4 times so far and had to get the screen replaced. But I've also noticed that with auto brightness off but you have the brightness maxed out and go in the sun or shine an led torch at the sensor the screen will kick up to override max brightness sun mode out like when using auto brightness. Is this normal behaviour. Can anyone test this fpr me please .only 6 months left of warranty left
So if this is a feature its stupid ,and make sure you never put your phone on max brightness in manual or autobrightness if out side and it's sunny as it will kick in and cause screen burn .
I've factory reset it and cleared cashe still the screen in manual mode if maxed out in the sun with the brightness maxed out will auto ride to super max brightness mode .im on the oreo uk fm
Phone is uk unlocked note 8.
Anyone? I see lots of views no replys I'm sure everyone that view this thread owns a note 8?
OK lol thanks for the great respone guys smh this place sucks :good:
haircut123 said:
OK lol thanks for the great respone guys smh this place sucks :good:
Click to expand...
Click to collapse
No, this place does not , if you do not get any response , it means nobody has something useful to share, beeing rude will gain you a ban
Maybe your the only person that has this error, so no one has any advice to give other than to factory reset (which you all ready done).
Most people has moved on to other phones. So you'll have to be patient. I say is take it to the Samsung store and see if it is covered under warranty.
I'm not the only person all note 8s do this i think but nobody in this thread owns a note 8 or 9 other than me because they both do it. On both my phones.its a terrible feature as it will cause burn in.if you want to be able to see the screen outside in the sun
So i've been using auto brightness for 2 years, i don't have any burned screen. Last week I've been using phone on sun, taking a lot of pictures (brightness set to auto, on camera app its option to set it to max bright) and still no burnout. I think you should say your problem to guy who will accept your warranty next time
Well this is good to know just went to the sammy service centre and tested the phones they had there with my led torch and they all do it including the s9 plus .so it maybe always was like that or it's been added into a fw.
haircut123 said:
Well this is good to know just went to the sammy service centre and tested the phones they had there with my led torch and they all do it including the s9 plus .so it maybe always was like that or it's been added into a fw.
Click to expand...
Click to collapse
I will add that friend have a s8, his screen is good. Also another friend had note 8 and now note 9, always autobrightness on, no problems so far.
I have a little experiment
1st, I set auto brightness on, turn on a torch on the sensor, brightness go to max, then turn it off, and brightness go to middle (room light on)
2nd, set the auto brightness off, slide the brightness to minimum, turn on the torch to sensor, and brightness remain to minimum, nothing change
So I assume maybe it's a software feature I don't have, you can check with your friend running the same firmware, or you can check using *#0*# on keypad, click on sensor, look for light sensor, and do a simple test, see how much lux you have when you're on direct sunlight, or in a room, then you can flip your phone down / reverse the light source, the lux sensor must be read it on continuous count, as you flip your phone, the number will get decrease
I hope you understand what I am saying, because English is not my native language
ahmadddea said:
I have a little experiment
1st, I set auto brightness on, turn on a torch on the sensor, brightness go to max, then turn it off, and brightness go to middle (room light on)
2nd, set the auto brightness off, slide the brightness to minimum, turn on the torch to sensor, and brightness remain to minimum, nothing change
So I assume maybe it's a software feature I don't have, you can check with your friend running the same firmware, or you can check using *#0*# on keypad, click on sensor, look for light sensor, and do a simple test, see how much lux you have when you're on direct sunlight, or in a room, then you can flip your phone down / reverse the light source, the lux sensor must be read it on continuous count, as you flip your phone, the number will get decrease
I hope you understand what I am saying, because English is not my native language
Click to expand...
Click to collapse
You did the test wrong friend you need to turn off auto brightness and slide the brightness slider to max brightness it must be fully maxed .then shine led torch at the sensor then the brightness overide kicks in and goes even brighter just like In auto brightness mode.but if the slide is not fully maxed it won't do it
haircut123 said:
I'm not the only person all note 8s do this i think but nobody in this thread owns a note 8 or 9 other than me because they both do it. On both my phones.its a terrible feature as it will cause burn in.if you want to be able to see the screen outside in the sun
Click to expand...
Click to collapse
haircut123 said:
Well this is good to know just went to the sammy service centre and tested the phones they had there with my led torch and they all do it including the s9 plus .so it maybe always was like that or it's been added into a fw.
Click to expand...
Click to collapse
Interesting you mentioned all devices do this before you went to the service centre and confirmed it. That admission renders your entire post pointless. If all the devices does this, it means it's not a fault on your sensors or anything on your side, and it means it's indeed just a feature.
Max_Terrible said:
Interesting you mentioned all devices do this before you went to the service centre and confirmed it. That admission renders your entire post pointless. If all the devices does this, it means it's not a fault on your sensors or anything on your side, and it means it's indeed just a feature.
Click to expand...
Click to collapse
I said imo that all devices have this issue. Because bothe my note 8 amd 9 have the same issue .and i found a thread on reddid where 2 others also had the same issue.its not a feature because it can damage the screen it must be a software bug that Sammy need to fix
haircut123 said:
You did the test wrong friend you need to turn off auto brightness and slide the brightness slider to max brightness it must be fully maxed .then shine led torch at the sensor then the brightness overide kicks in and goes even brighter just like In auto brightness mode.but if the slide is not fully maxed it won't do it
Click to expand...
Click to collapse
Ah I see, after doing that, I found out that the screen goes brighter and the colors seem to be fade out
Maybe it will help us to watch better when we got under direct sunlight (I think it's not a bug)
But in real life usage, I have my adaptive brightness turn on, then when I think it's too much bright at the moment, I will manually adjust it to my desire brightness
So that the system will learn the pattern and will apply automatically next time I had the same condition
Doesn't do that with mine and I live in Hong Kong.

Auto brightness - screen is too dark

Hi.
Anybody else have problem with auto-brightness? For me the screen is too dark at night. I'm using stock firmware with all updates installed.
I have the same issue.... I still waiting for some custom ROM.... Maybe some one fix it
grigor1993 said:
I have the same issue.... I still waiting for some custom ROM.... Maybe some one fix it
Click to expand...
Click to collapse
I'm having the same isuue on redmi 8. But i think it's due to MIUI 11 or some aggresive adaptation. I have a redmi 6 which have the same issue (although it has no auto-brightness), the screen gets too dim with no reason (as if i scroll the brightness bar to the lowest setting).
I have the same problems of auto brightness which is too dim on dark places, is there any solution even with root ??
Yes , there is actually a solution : Turn Off Automatic Brightness. Why do you guys turn on Automatic Brightness ? I never set it to Automatic.... first of all, Auto Brightness will waste more battery.... I just keep my Brightness to about 25% always... no matter if it's day/night...

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