For anyone who is interested, here is my method for fixing the black unresponsive screen during a call.
Like most of you reading this message I had the dreaded black screen during a phone call, which makes it impossible to end the call or dial numbers for automated systems. A lot of suggestions and fixes included blowing into the upper right corner of the phone or into the ear piece. This doesn't work (or it didn't for me) because the proximity sensor which you are allegedly blowing dust off of is pretty well sealed against the outside world. I'm on firmware 1314, which is supposed to have fixed the issue, but did not.
What did work every time was to pinch the phone front to back at the upper right corner right around where the proximity sensor was. I actually later found out you could pinch the phone anywhere in the upper half and the screen would light up.
I opened up the phone, saw that the proximity sensor just kind of flaps freely with a metal back that touches what i think is a grounding plate on the frame. When you pinch the phone it shorts this circuit and makes the proximity sensor behave properly. To make the contact better I cut a piece of aluminum foil, folded it up a couple of times, and wedged it behind the proximity sensor. Put the phone back together, made a call, and voila - screen on away from my face, off when sensor is covered.
Here is a picture of what the proximity sensor looks like on the pcb. I just wedged the foil behind the circled piece and replaced everything.
http://imgur.com/dAqCBGd
This absolutely works for me, but YMMV. I used the youtube video from le55ons for disassembly instructions. It's fantastic.
Excellent work. Subscribing in case I get this issue in the future
Sent from my Nexus 7 using Tapatalk 4 Beta
Do you have a screen protector installed. I did and it covered the proximity sensor, which gave me issues, took it off, no issues
mikeschevelle said:
Do you have a screen protector installed. I did and it covered the proximity sensor, which gave me issues, took it off, no issues
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I didn't have a screen protector on, but i can see how it would cause a problem if it covered the sensor. Now that it's working properly I can see how sensitive it is. If i hover my finger an inch over the sensor, the screen will go dark.
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Hi my problem is strange. After a fall mi phone HTC GRATIA is similar HTC Aria have a problem during the call. Sometimes the display became black similar a stand by and not answer to the all impulse. If i want stop the call i have to do remove the battery.....
Have you any help for me ?
thank you
I've got a similar problem. I've replaced my digitizer and done everything by the instructions I've found. However the proximity sensor doesn't work and disable the screen when calls are answered.
I've got the rubber gasket on the light sensor, didn't lost it, and the light sensor works OK. I've tried prying very gently in between the digitizer and the housing, and while I do that sometimes the proximity sensor will show a value of 3.5in, and not 0 as always. I'm using AndroSensor.
I don't mind disassembling the phone again, but I don't know what I need to fix it.
I've searched all the forum posts about it, but either people disabled it somehow, and others just say they fix it but didn't mention how.
Any help on this?
CaptainMaki said:
I've got a similar problem. I've replaced my digitizer and done everything by the instructions I've found. However the proximity sensor doesn't work and disable the screen when calls are answered.
I've got the rubber gasket on the light sensor, didn't lost it, and the light sensor works OK. I've tried prying very gently in between the digitizer and the housing, and while I do that sometimes the proximity sensor will show a value of 3.5in, and not 0 as always. I'm using AndroSensor.
I don't mind disassembling the phone again, but I don't know what I need to fix it.
I've searched all the forum posts about it, but either people disabled it somehow, and others just say they fix it but didn't mention how.
Any help on this?
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You need to get the light sensor, gasket, and the small window in the digitizer all lined up perfectly so that the light sensor is not being blocked by anything. Not as easy as it sounds.
thanks for the explanation, but is the best way to do this?
and why the light sensor shouldn't be blocked? it seems by AndroSensor that it works fine, the problem is with the proximity sensor.
These phones where manufactured by the thousands per day in some factory, there sure is a way to assemble them precisely somehow.
CaptainMaki said:
why the light sensor shouldn't be blocked?
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If it is blocked, then it will not be able to sense anything (It's like you (the light sensor in this case) are trying to through a wall (whatever's blocking it)).
CaptainMaki said:
These phones where manufactured by the thousands per day in some factory, there sure is a way to assemble them precisely somehow.
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Special machines used to place them accurately.
I meant that the light sensor is "blocked" by the rubber gasket and seems to works fine.
by the way, as far as I know, most electronics are assembled by hand. laptops, iphones and ipads are, so I don't think that Aria is any different.
If anyone has any tips on how to do this, since I'm sure I someone has managed to replace the digitizer on this phone? how do they do this in repair shops or AT&T store?
CaptainMaki said:
I meant that the light sensor is "blocked" by the rubber gasket and seems to works fine.
by the way, as far as I know, most electronics are assembled by hand. laptops, iphones and ipads are, so I don't think that Aria is any different.
If anyone has any tips on how to do this, since I'm sure I someone has managed to replace the digitizer on this phone? how do they do this in repair shops or AT&T store?
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The ambient light sensor and the proximity sensor are two separate things, though they are right next to each other on the Aria. The proximity sensor is MUCH more sensitive to being precisely aligned.
I incorrectly used the term "light sensor" in my earlier post. The proximity sensor, NOT the ambient light sensor, is responsible for turning the screen off during calls.
drumist said:
I incorrectly used the term "light sensor" in my earlier post. The proximity sensor, NOT the ambient light sensor
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That's what I assumed you were talking about.
As I've said the proximity sensor is the right sensor and the ambient light is the left sensor that is covered with the rubber gasket.
The light sensor works perfectly as I've said. In AndroSensor at least it jumps between 33 LUX when covered and 77 LUX and 220 LUX when placed directly under a desk lamp.
But the proximity sensor doesn't seem to respond at all. What perfectly aligned means, that the sensor is right below the "hole" in the digitizer plastic? if I place the digitizer and it falls into the place, how come it isn't aligned? it's not like the digitizer has where to move in the frame.
CaptainMaki said:
The light sensor works perfectly as I've said. In AndroSensor at least it jumps between 33 LUX when covered and 77 LUX and 220 LUX when placed directly under a desk lamp.
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I have two Arias and they both max out at 698 lux. If you can't get it to go above 220, it might be partially obstructed.
But the proximity sensor doesn't seem to respond at all. What perfectly aligned means, that the sensor is right below the "hole" in the digitizer plastic? if I place the digitizer and it falls into the place, how come it isn't aligned? it's not like the digitizer has where to move in the frame.
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Do you notice a gap between the LCD and digitizer that is larger than it was from the factory? I wonder if it might just be related to the digitizer sitting too far from the proximity sensor. If you press down on the top right corner of the digitizer while in a call (without covering the sensor itself), will the screen turn back on?
Possibly unrelated, but similar.
I have an identical issue with the DroidX.
It needs a "gasket" over its proximity "light source" to keep light from reaching the proximity light sensor when there is nothing in front to reflect it back.
Looks like the light source had a rubber hood over it with a pinhole directed straight out, away from the sensor adjacent to it. Thus keeping stray light from triggering the sensor.
AAARGH. To have that little rubber piece.
Erbid
after replacing another screen and this time I've done it right, this is what I've learned.
I've assembled the phone with androsensor turned on and tested the sensors all the time. It seems that they should be perfectly clean (some air spray will do just fine), perfectly aligned with the holes in the digitizer and don't have to much distance between the digitizer and the sensors.
It's seems like a hassle but actually it's not, since if you put the right tape and put the keep it all clean, it can work with no problems at all. Make sure you test everything before you close the phone completely.
Just noticed that when I'm on a call the screen does indeed go to sleep. However when I take the phone away from my ear it does not wake up. This is a pain for I have to hit the power button to hit the end call. Anyone else have this?
make sure ur screen protector isnt covering the sensor
flex360 said:
make sure ur screen protector isnt covering the sensor
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My zagg hd protector has a little notch that shows the tiny circular sensor and its not covered. When looking closer I notice the tiny circular sensor is part of a larger rectangular sensor? This goes left to right. Not sure if this can be the issue since if I cover it the auto brightness does work.
Welp, woke up this morning to my phone screen turning of randomly as if it was against my head during a call. In order to make it come back, I had to press the lock button. Then I pressed home while still in call and locked the screen, pressed the unlock button to get to the lock screen and every time I touched the ring to unlock the phone, the screen turned off again. This forced me to yank the battery to get the phone back.
Same thing happened after another call, so had to reset again.
Downloaded AndroSens and under the proximity sensor tab, it says sensor_Status_unreliable and the number/bar stay at 0 regardless of whether my hand is over the sensor or not.
Is the proximity sensor in my rezound toast?
Some people have reported dust making it go wonky.
Do you have a screen protector covering the sensor on the front... I have had this issue. Just cut the protector around the sensor if that's the issue
GrayTheWolf said:
Some people have reported dust making it go wonky.
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Unfortunately, no dust on the top of the screen and I don't see any under it. I'm familiar with pulling the phone apart, but don't really have the desire to do that just to check for dust haha.
Juicy92 said:
Do you have a screen protector covering the sensor on the front... I have had this issue. Just cut the protector around the sensor if that's the issue
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I do have a protector, but it already came with notches around the sensor and FF camera.
I have the same probably but mine is from the digitizer "floating" up because the glue is weak underneath. If i push on the screen by the proximity sensor to push the digitizer down again the sensor works again. Haven't been able to fix. Maybe your digitizer is loose also.
Ullmz469 said:
I have the same probably but mine is from the digitizer "floating" up because the glue is weak underneath. If i push on the screen by the proximity sensor to push the digitizer down again the sensor works again. Haven't been able to fix. Maybe your digitizer is loose also.
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Floating digitizer? Never heard of that before.
That's new, but sounds right
Ullmz469 said:
I have the same probably but mine is from the digitizer "floating" up because the glue is weak underneath. If i push on the screen by the proximity sensor to push the digitizer down again the sensor works again. Haven't been able to fix. Maybe your digitizer is loose also.
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Same problem here, been debating on calling for warranty replacement
Sent from my ADR6425LVW using xda premium
Ullmz469 said:
I have the same probably but mine is from the digitizer "floating" up because the glue is weak underneath. If i push on the screen by the proximity sensor to push the digitizer down again the sensor works again. Haven't been able to fix. Maybe your digitizer is loose also.
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Yeah mine is loose but only on the left side so my screen is tilted although it hasn't affected anything else it's still very annoying
Sent from my ADR6425LVW using Tapatalk 2
I've sent two rezounds back for the same problem. Call Verizon, they should replace it for you.
Sent from my GT-P5113 using xda app-developers app
You can try blowing out the speaker grille at the top of the phone with condensed air. Might clear any dust. Otherwise, call verizon.
I would rather not have to return to verizon and get a refurb if i can help it. I got the phone in November when it first released, so I'll definitely be getting a refurb. Oddly enough, androsens had it working just fine last night before bed. Put my finger over it, sensor went to 9/9, removed finger and went to 0/9. Repeatable for 10 minutes.
Then this morning it isn't working again. I can see the faint red light inside the housing for the prox sensor is lit. I might try blowing it out and disassembling/reassembling to see if I can fix anything.
Thanks all.
After working on this problem for a while now and trying a few roms with black screen on calls, finally found a 100% successful fix for about 10 Atrix i have worked on and so far issue has not returned !!
I know it is a common problem with a lot of roms where when making a call the screen goes black instantly after dialing and the proximity sensor cannot be used to wake the screen nor the volume button and no way to use numbers to choose in call options, meaning literally doing a battery pull to reboot the device.
I tried a few things thinking it helped and for a while did but the issue slowly came back but after some work and patience with the phone got it working properly, here is what i did :-
While making or receiving a call squeezed the whole top end of the phone, in other words squeeze the front and back together clamping relatively hard ( be careful not to crack the screen ) and the screen comes back on enabling in call functions and proximity sensor.
Opened phone up and checked position of proximity sensor and flat cables ( being directly inside where we were clamping in the last section ) and saw that the flat cable with the earphone connector and proximity sensor had moved away from the screen.
On the second flat cable ( the one with the touch pad ) is a sponge sticker ( placed directly on the back of the touch pad connector ) which presses directly onto the back of the proximity sensor and holds it close to the screen, which was pretty flattened, so i put on a new piece of sticky sponge on top of the old one making it thicker, to hold the proximity sensor tight to the screen.
I reassembled the phone ( put the back on and screwed it in tight ) and tried with the calls again, so far everything is great.[/COLOR]
There was also the same problem with some poorly fitted touchscreens, either where it has not been stuck into the frame well enough or the original adhesive become worn out and not sticky enough any more, so i refitted the screens with extra strong double sided adhesive and again 100% of phones with the problem still good !!
If there is a slight gap between the screen and frame it can mis-align the proximity sensor with the holes in the frame and the clear section of the screen needed for light inlet !!
Also as we all know, there are roms / kernels which produce a lot of heat in the handset, this is also a contributing factor, due to the adhesive used in fitting the touchscreen losing strength and the screen slowly moving away fromn the internal frame !!
PLEASE DO NOT TAKE MY WORD FOR GRANTED, I AM ONLY STATING WHAT HAS HELPED ME AND REMEMBER ALL DEVICES ACT AND REACT DIFFERENTLY !
I really hopes this helps you all, if it did please let me know or if you found something different it is equally important that i can try this too and we can really get to the root of the issue together !!!
i know i can stop blaming the roms now and say it's a hardware issue !!
Thanks again to the developers here for the hard work on the roms , keep it up !!! :good:
After I updated my Nokia Lumia 920. the screen turns off when im dialing someone, and the only way to get it back is to restart it or if the person on the other end hangs up.
Could it be the light sensor? or is it just the phone update that messed it up?
http://discussions.nokia.com/t5/Nok...n-t-switch-off-Lumia-920/td-p/1606440/page/10
Thanks!
I will return it tomorrow, since im not ready to open it after 20 days of use
now its REALLY FIXED but need to open the phone (only two screws )
Symptoms:
Experience screen and touch sensor switch off during a call, Notifications (the screen stays off, like if it was in a pocket) which doesn't turn on as usual.
Try:
If during a call you press and hold the upper left corner of the glass -just between the speaker and the upper left corner- you will notice that the sensor works as expected.
I think :
Because of the layered nature of the phone internals design and the heavy use of ribbon connectors it had to be tight to connect the board with the sensor.
My Solution:
I just added a peace of sponge (W:4mm/H:5mm/L:15mm) (all weather door and window sealant) -that comes self adheasive from one side- and sticked a small peace on the board on the opposite side of the phonejack/secondary mic connectors (Pictures attached) this will add pressure on the board to be more tight tried it and working as normal.
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cbadk said:
Thanks!
I will return it tomorrow, since im not ready to open it after 20 days of use
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Mine is suffering the same issue. In the Nokia forums one user recommended to "blow air" across the top of the phone where the display meets the case right above the Nokia logo. I did this and now my proximity sensor is working. It's got to be dust getting on the sensor. I'm going to take mine apart and see if I can come up with a seal for the FFC and proximity sensor.