[Q] Atrix Proximity / Light Sensor - Atrix 4G Q&A, Help & Troubleshooting

Hello guys,
My proximity / light sensor is not behaving correctly for past few days. Now whenever i dial a call, the proximity sensor turns the LCD off and it does not turn it on until the call ends somehow. It seems to be that the sensor is unable to sense the incoming light. Also the little red LED of the sensor stays on for very long, even after the call.
Also, the screen's brightness does not change when i move from low light to high light areas (and vice versa).
I have jokersax's CM9 build 0.6.1 installed with the built in kernel. (Which is probably the CM9 kernel too).
I suspect the proximity sensor is faulty. And also that this is a hardware problem. Now the question I'd like to ask is does anyone know what parts do i need to replace in order to get it back working. What would I tell the repair part vendors to send me ?
Also, do you agree that this is a hardware problem??
OR do you think, it is the ROM may be or the way I've installed it??

shabeepk said:
Hello guys,
My proximity / light sensor is not behaving correctly for past few days. Now whenever i dial a call, the proximity sensor turns the LCD off and it does not turn it on until the call ends somehow. It seems to be that the sensor is unable to sense the incoming light. Also the little red LED of the sensor stays on for very long, even after the call.
Also, the screen's brightness does not change when i move from low light to high light areas (and vice versa).
I have jokersax's CM9 build 0.6.1 installed with the built in kernel. (Which is probably the CM9 kernel too).
I suspect the proximity sensor is faulty. And also that this is a hardware problem. Now the question I'd like to ask is does anyone know what parts do i need to replace in order to get it back working. What would I tell the repair part vendors to send me ?
Also, do you agree that this is a hardware problem??
OR do you think, it is the ROM may be or the way I've installed it??
Click to expand...
Click to collapse
If you have face unlock enabled then disable it and try it again.
Sent from my MB860 running Jokersax's CM9

Related

[Q] [q] proxity sensor

As we all know by now, "The HD2 includes a variety of sensors including a Proximity Sensor that is used to prevent false screen touches when the phone is picked up to answer or make a call. A Light Sensor automatically adjusts the brightness of the display..."
The subject matter of this thread is the Proximity Sensor, meaning, when you receive a call and put the phone to your ear, the screen supposed to turn off so you won't accidentally hang up or open other application by touching the screen with your face. The Proximity Sensor of my phone worked perfectly. However, couple of days ago the Proximity Sensor stopped functioning and I'm wonder what could have caused that. I'm picking up the phone, talk on the phone and the screen is fully lit. I remember that, one day, I calibrated the screen... Could that have been the cause?
Anyway, does anyone know how to turn the Proximity Sensor on or, if it is on, how to make it work properly?
Thank you.

[Q] CM7 -> light sensor not working

Hi,
my light sensor value is always at 33,no matter what ambient light there's in the room.
I'm using CM7 stable.
Any ideas?
and you see it in what software?
try to bring it exactly under desk lamp, if you use Elixir.
There is some "low" dead zones, need high contrast to see changes.
If not then wipe reinstall.
Hi,
i've checked with cyanogens build in feature.
Then i've installed elixir,placed the device under a lamp and the sensor started working and is working eversince.
So thanks a lot,"problem" solved.

[Q] if you don't have the proximity sensor problem, can you try test?

I'm trying to figure out normal (functional) proximity sensor response to light.
(originally posted this to meanbean because I downloaded meanbean specifically because it mentions the proximity fix.
Would somebody who doesn't have a problem with their proximity sensor try the following:
1) Use whatever program you like that displays current proximity distance. I've been using Proximity Sensor Finder.
2) Confirm that near and far are reporting correctly (it's binary, but reports as 9cm versus 0cm).
3) Expose the phone to strong light (e.g. put it near a light bulb).
4) Remove from light source
--> Does the proximity sensor now report NEAR even when there's no object near the sensor?
I really appreciate your testing this and letting me know here or by DM.
Thanks so much!
Have you tried this:
http://forum.xda-developers.com/showthread.php?p=31452830
[MOD] [CM10] Proximity Sensor Fix
Even though it's for cm10 it might help you... Good Luck!
Sent from my EVO using xda app-developers app

[Q] Any way to keep screen on while in a call?

I have a problem with my proximity sensor (probably dust?) and I can't clean it. Now, every time I get a call on all roms I tried the screen shuts off (that is normal) but won't turn on (ie. if I have to press keys while talking or activate speaker)
The only way I have for now is flashing a very bright light on the sensor and it only works sometimes....
So my question is : is there and app, a dialer, an option, a way or whatever other trick to have the screen turned on while in a call?
Peek at this:
http://androidforums.com/htc-amaze-4g/672412-proximity-sensor-problem.html
Supposed to be a free tmobile proximity sensor recalibrator here, but the page wouldn't load for me. Maybe it is available elsewhere.
Also, if your screen protector is covering it, maybe that is making a difference?
I couldn't find a way to disable the proximity sensor or change its sensitivity, however there might still be a way.
Good luck.

Proximity sensor issue

Hello,
Has anyone noticed a promixity (maybe ambient light) sensor issue? Often (more in the dark) I can see a weak red light blinking right where there is the proximity sensor(it stays there if automatic brightness is on). I tried disabling and closing one app per time but it seems more like a software bug...
Anyone else?
Sony Xperia X F5121
Hello ! Yes! (sorry for my language I'm French).
Tonight, after charging my phone at 100%, I have seen a red little light in the '' capter '' a the right (for automatic luminosity I think). It was a big bug who during ~ 30 minutes. And I have lost 20% of battery, I think, cause to this bug.. Do you already have the bug today?
daddu97 said:
Hello,
Has anyone noticed a promixity (maybe ambient light) sensor issue? Often (more in the dark) I can see a weak red light blinking right where there is the proximity sensor(it stays there if automatic brightness is on). I tried disabling and closing one app per time but it seems more like a software bug...
Anyone else?
Sony Xperia X F5121
Click to expand...
Click to collapse
I've een it also sometimes but i've no idea what it is
me too,but i've noticed that only blinks when its recieveing data when changing from wifi to 4g and viceversa,when its done,it doesnt blink anymore.
Does anyone have any idea for this problem please ? :'(
daddu97 said:
Hello,
Has anyone noticed a promixity (maybe ambient light) sensor issue? Often (more in the dark) I can see a weak red light blinking right where there is the proximity sensor(it stays there if automatic brightness is on). I tried disabling and closing one app per time but it seems more like a software bug...
Anyone else?
Sony Xperia X F5121
Click to expand...
Click to collapse
@Mr High Tech @kistigun @kalel29
Are you kidding me guys? :laugh::laugh:
It's not a red light.... It's barely visible because it's an Infrared Sensor Infrared light is usually visible only in very dark conditions.
Hint that will make your day - when it's dark and you barely see it, try pointing a camera at it! It flashes white now, doesn't it.
Sebi673 said:
@Mr High Tech @kistigun @kalel29
Are you kidding me guys? :laugh::laugh:
It's not a red light.... It's barely visible because it's an Infrared Sensor Infrared light is usually visible only in very dark conditions.
Hint that will make your day - when it's dark and you barely see it, try pointing a camera at it! It flashes white now, doesn't it.
Click to expand...
Click to collapse
more than wanting to know what it is, i think they want to understand why; why does the proximity sensor stay on?
i had this question too, before updating to the latest firmware (.292). after that, it seems the "problem" doesn't occur anymore, but i'm not that sure. i'll have to double check.
however, do some of you use "Smart backlight control" feature?
carlo93 said:
more than wanting to know what it is, i think they want to understand why; why does the proximity sensor stay on?
i had this question too, before updating to the latest firmware (.292). after that, it seems the "problem" doesn't occur anymore, but i'm not that sure. i'll have to double check.
however, do some of you use "Smart backlight control" feature?
Click to expand...
Click to collapse
Smart backlight control makes use of the accelerometer of the phone. Keeps the screen on by detecting movement. Neat feature.
Smart call handling on the other hand uses the proximity sensor. Also the style cover preinstalled software. And of course Call handling uses the proximity sensor.
I'm using a modified version of Gravity Screen for pocket mode. Proximity sensor flashes all the time in order to turn the screen on and off when it's in or out of the pocket. Also I use the proximity sensor so that the screen won't turn on when it's in the pocket - like when a call comes in and I don't want to accidentally answer.
One thing you should know about the proximity sensor is that it uses a crazy low amount of power (0.18mA). Now the software that uses the sensor might have many wakelocks but we also need features so it's a small price to pay haha. Also if you're planing on using gravity screen (which is a cool app), you can always add a on/off widget.
There's really nothing to worry about - none of those features/apps I mentioned register on power consumption.

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