black screen when dialing - Galaxy S I9000 General

i got problem when i am dialing
it goes to black screen without any reaction
it can only recover when cut the line by the receiver
is it the phone.apk problem or other else ?
my is dark's7.0 2.2.1

Do you have a case on the phone? it sounds as though the proximity sensor is being activated by something.
If you have a case or a screen protector, try taking them off and then using the phone.
Best of luck.

no.. no...
even i place it on the table... it goes to dark screen
maybe if your case is standing, it has dust on the senor...
how to clean it ?

Related

Screen Protector and Proximity sensor

Has anyone installed the HC SP300 screen protector - if so does your proximity sensor work.
I noticed today that when i make a call, the device blanks the screen after pressing the send key. Putting it to the face and away does not make the screen come on. I'm guessing its the screen protector as i just did a hard reset and still not working (although it did when i got the phone.
I install the HC Sp300 on my device and the proximity sensor still works fine.
OK thanks.
Guess im going have to remove it to find out if it is the screen protector. If that doesnt work, i guess i have a dead sensor?
I have the same problems. It seems to be working, but with the more light.
I had the problem of the black screen when a call connected.
To solve it, i cut a small section near the 2 small holes in the top left corner.
Now it works as per usual. I think its a case of 'if you dont align the holes on the screen protector precisely', you will get this problem.

Proximity sensor while talking on the phone

i tried to search the forum with no results btw
have two cases while receiving/calling with hd2
1. via bluetooth headset - even when the phone is in the pocket some apps starts randomly, even call is disconnected - isn't proximity should cause phone scrren to be blank all time?
2. via the phone - sometimes while talking screen is still dark and pressing eg. home key puts display on. sometimes moving phone away from ear turns screen on.
do you have some or its something with my phone?
I have the same problem, the proximity sensor does not work, I think it works only outside when you have strong light, try it and let me know.
make a call the screen will go off now move it from your face loking up at the sun outside you will see that the screen will turn on.
it works only when I makes a call. when I am getting a call it atays on.
kochav
kochavy said:
I have the same problem, the proximity sensor does not work, I think it works only outside when you have strong light, try it and let me know.
make a call the screen will go off now move it from your face loking up at the sun outside you will see that the screen will turn on.
it works only when I makes a call. when I am getting a call it atays on.
kochav
Click to expand...
Click to collapse
Well you would be wrong then.
It's a proximity sensor, not a light sensor. I just made a call in my darkened room and the proximity sensor functioned flawlessly.
thake the screen protector out or cut it and the proximity sensor will work perfect.
kochavy
kochavy said:
thake the screen protector out or cut it and the proximity sensor will work perfect.
kochavy
Click to expand...
Click to collapse
Wow who would've thought that covering up a sensor designed to sense when objects are close to it would impede its functionality.
Your revelation hepled me fix the microphone on my phone. It wasn't working, and then I realized I had my hand over it!
Yes I have had issues even with the original HTC screen protector which has two small holes directly over the sensors. I finally had to remove it.
Cutting the protector I have not been very successful so far. This creates sharp edges and the protector tends to peel off from that point. For the time being I am relying on the fact that the screen on the HD2 is scratch resistant enough that with normal care it would not get scratched. With over 2 months of use without a protector my screen is still scratchless.
IF it is anything to do with the screen protector, then there are plenty out there that don't have this effect.
I've got a protector on my HD2 and have had it there since just after I got it, so just over 2 months now. The screen protector has worked perfectly, even, kochavy, in the dark, because it detects proximity not light.
I suggest removing any screen protectors and seeing if you still have the problem. If you do, send the phone back as faulty. If you don't, get a better screen protector.
johncmolyneux said:
IF it is anything to do with the screen protector, then there are plenty out there that don't have this effect.
I've got a protector on my HD2 and have had it there since just after I got it, so just over 2 months now. The screen protector has worked perfectly, even, kochavy, in the dark, because it detects proximity not light.
I suggest removing any screen protectors and seeing if you still have the problem. If you do, send the phone back as faulty. If you don't, get a better screen protector.
Click to expand...
Click to collapse
do you have the original HTC screen protector with the two holes? there are some protector that does not cover the top of the phone and leave the two sensors out from protection.
kochavy said:
do you have the original HTC screen protector with the two holes? there are some protector that does not cover the top of the phone and leave the two sensors out from protection.
Click to expand...
Click to collapse
No I don't. The one that came with it never please me much, so I bought some better ones.
The protectors I have don't have any holes for the sensors at the top, but like I said, it just works perfectly. There's a lot more to this issue that just the screen protector, as some people have reported that it works perfectly when they ring certain number, but not when they ring others. From what I've read on other threads, this is commonplace for people who are having this problem, so it's obviously not an issue with their screen protectors. It sounds like a software issue to me, but since it can't be identified as such, they should just return their phones as faulty and hope the replacement doesn't have the same issue.
It would be interesting to know if the people with the described issue have upgraded the ROM to 1.66, as this seems to have fixed a whole slew of issues.
Sensor works by reflecting infrared light. There is small IR lamp with IR detector nearby. You can check that by looking at the sensor through some digital camera or camcorder, whose are usually sensitive to this light. Don't forget the phone must be in call, otherwise the sensor is turned off.
I think the sensor itself is OK. But there seems to be some relationship with guess what .. G-sensor ! Once I found the screen just won't go off during call, and it was when I was lying during the call, and I was holding the phone upside down portrait style.
But as I turned the phone to normal position (normal portrait) and back, it started to work with no problem.
I only had problem with proximity sensor once since then .. but rotating the phone up and down helped again.
I think this needs more investigation .. if you encounter the problem try this.

Problem with proximity sensor

The problem is that the screen will stay off during calls. That means I can't hang up...
The only way to get the screen on is bright light against the sensor.
Is there any way to calibrate the sensor?
I don't think so. But as you say, it's a proximity sensor, so it should measure a distance and not need light to wake the screen. And as far as I know, the light sensor isn't used in calls.
But you could use the key under the screen to hang up
Yes, that's pretty weird actually, but that's how it is...
But no, I can't hang up since there are no hard buttons. Only the touch-sensetive ones, and they don't work when the phone thinks it's at someones ear.
Screen protector and proximity sensor
I have installed on my HD Mini a very good quality screen protector. During phone call my screen became black like my ear is on the phone, but my phone is on the desk ! If I remove the screen protector the proximity sensor come back to work correctly. Any idea how to set-up or adjust proximity sensor sensitivity ?
Me too!
I have this problem too!
Your phones have a screen which is made of really good strong glass. Using a screen protector is useless. I have had a Hero (also a capacitive touchscreen phone) for 6 months and, while I do keep it in a holster, I have rubbed it on my shirt, dropped it and used my finger on it all day long. It still is spotless. Stop wasting money on protectors and just use the phone. And having a protector is bound to screw up the proximity sensor.
As far as it not recognizing that the phone is not against your ear.... that is a matter for the service department to solve since it seems like a hardware fault.
Really strange! I've a screen protector but don't have this problem... the sensor works fine!!!
bellor
It's made out of plastic, really easy to make scratch. And it's very fingerprint attractive. So glossy filter is really good solution.
BeemerZ1
Same problem, proximity sensor work really weird.
Hi guys, I have the same problem on my HTC HD Mini, when you make a call the screen goes black and will not allow to end call. I have to take battery out to make it work again. I was looking at the registry tweaks for HTC HD2 (leo) and am wondering if those tweaks will work on my mini.
Please, if anyone has a solution, put it on here, have even tried replacing the glass to resolve but not working still.
Same problem. I tried an experiment... when i'm in a light room, works. when i'm in a dark room doesn't work. Really stupid... without light doesn't work!!
If you would, try to put the mini under light when is in calling...
In fact, that's quite normal. If you're calling in a dark room, how do you expect that your phone can "see" the difference between the darkness of your ears and the darkness of the room?
Are you using a screen protector?
I used to have the same issue. But once I remove the screen protector the screen turns back on straight after a phone call.
I believe that the proximity sensor is confused and is affected by having an object pasted over it.
so if someone could experiment with just removing he corner of the screen protector to avoid the sensor, you will not have a issue.
I am using the mini with a screen protector and it has been fine in my pocket...but I am not saying you should try!
My 2 cents!
S-ed said:
bellor
It's made out of plastic, really easy to make scratch. And it's very fingerprint attractive. So glossy filter is really good solution.
Click to expand...
Click to collapse
its made of carbonized whatever mixture just like any other capacitive screen and no theres no way to scratch that thing, iam wearing it in a pocket together with my keys since i bought it and theres no single scratch there, yet the fingerprint thing is very annoying indeed but thats because the material of the screen is very very close to glass.
fongyiktze said:
I used to have the same issue. But once I remove the screen protector the screen turns back on straight after a phone call.
I believe that the proximity sensor is confused and is affected by having an object pasted over it.
so if someone could experiment with just removing he corner of the screen protector to avoid the sensor, you will not have a issue.
I am using the mini with a screen protector and it has been fine in my pocket...but I am not saying you should try!
My 2 cents!
Click to expand...
Click to collapse
The lcd and digitiser have been replaced and there is no screen protector on the device. I purchased the lcd and digitiser as a complete unit so as not to have any issues.
The seller reassures me that the product was brand new and had been fully tested. I no longer have the old pieces to test against but this problem seems quite common from the threads on here and gsm forum.
Any solutions or ideas for resolution greatly appreciated, near to pulling all my hair out!!!!!!!!
I have screen protector and I do not have any problem with sensor. Everything works great..
i have the same problem as you.. when i am in a call i cant end it because my screen is black all the time.the only solution i found is when i call i turn the speaker on.please help us
p.s where on the screen is the proximity sensor??
spithash said:
i have the same problem as you.. when i am in a call i cant end it because my screen is black all the time.the only solution i found is when i call i turn the speaker on.please help us
p.s where on the screen is the proximity sensor??
Click to expand...
Click to collapse
up on right side
_Madmatt said:
In fact, that's quite normal. If you're calling in a dark room, how do you expect that your phone can "see" the difference between the darkness of your ears and the darkness of the room?
Click to expand...
Click to collapse
Yes I know... I meant that only works in bright light conditions, such as directly under a lamp or sunlight. in a room or just the shade does not work. So it's "only"a matter of adjusting the sensitivity of the light sensor. I do not even understand how it can be made this "proximity sensor", all I know is that it works with light. Rather, there is a program like the shake'n wake can use?
I have this annoying problem, too.
But I have to say: I have NO screen protectror, and: the divece was repaired by arvato-Services after a broken display. And I didn't have this problem before!
Sometimes i seems to help to puff serveral times into the loudspeeker, so that the screen returns and I'm able tu hang up the call. But sometimes it doesn't works, and if I had spoken to a mailbox (and the other end didn't hang up, so that i MUST hang up) the last solution was to remove the battery.
If there is a way to disable the sensor (i.e. in the registry)?
kind regards
Ye same thing, Mine will only bring the screen back during a call if it is under a very bright light.
Any ideas yet?

Please tell me if your phone has this???

Hi guys,
I am having screen protector drama: I am trying to remove a non silicon screen protector (and I know its on there. good at that!) but I can't remove it.
I've tried scotch tape, duct tape, mach 3 razer blades...trying to lift up that corner.
I have to remove this thing because it is what I am suspecting is messing with my Proximity Sensor, and causing the screen to blank when making calls. Also, Z-DeviceTest reports my Proximity is 0.00000 cm , when the screen is just on normally.
*i might try the hex edit trick to turn off the sensor after this, if I fail. Although that would suck kind of, because then my head will press buttons during calls..AND, hex editing the appropriate file with androids hex edit, didn't help me find the string, the last time i tried.
That being said, I'm using a pin and a flash light, and want to know if i am pulling at something inherent to the phone or not.
On your Nexus one, is there a black rubbery ring around the screen, between the edge of the screen and the grey. Is it like 1mm thick? (everytime I pin and pull up, i tear this string like rubber grommet, and i'm wondering if its the screen protector excess that oversits the screen, or something the nexus one has around its blank screen?
Please help.
ThankS!
I do see a thin black ring between the screen and the metal.
If you're really sure there's a screen protector on there, maybe try a tiny dot of superglue on some tape to increase the sticking power?
Aww, thank you sir.
I guess I've been tearing up my phone then.
I will try the super glue, but what should I stick onto it? <string?>
ive never had a screen protector that stuck on are you sure there is even one on there? those things peel right off
Hrmmm....
Well its a Clarivue... these things look like glass.....
Well, I used the solution described here, with the hex editing http://forum.xda-developers.com/showthread.php?t=985223
Altering sensors.mahimahi.so solved the phone screen going blank issue, but auto rotate stopped working.
Replaced the file with original, rebooted, and for some reason, still couldnt auto rotate.
Now doing a Nandroid restore. Hoping it auto rotates again.
This screen off issue during call seems like a GB issue. Restoring an earlier CM7 backup, and hoping to find an alternate dialing app...
Found a fix. somewhat
(The nandroid backup restored auto rotation incidentally)
You go into the dialer, and change preferences to disable Haptic feedback.
The screen still may go blank on dialing, but easily awakes now by either pressing the power button or trackball. No one button seems to do it consistently, but its one of those two consistently now.
Thanks for your help guys. Minor pin damage
Still no fix for the Proxmity Sensor GB/CM7 bug.
Any suggestions? I tried Screen Suite as recommended in another thread. No go.

Proximity sensor not registering movement/doesn't turn the screen back on

Hi,
Lately i have been noticing that the proximity sensor on calls on my s5 is not working properly. Once i answer/make a call, when i place the phone in my ear it shuts down the screen but the problem is when i take it away from my ear, the screen doesn't turn back on.
I tried the the testing menus (*#0*# or something like that) and when i placed my finger close to the sensor it detected, going green and vibrating but it doesn't go away from that state.
The only thing that changed was that i applied a glass screen protector a few days ago and im thinking it could be that, but its strange because its only when i back away from the screen that it doesn't register, so i don't know if that or not. Also, the protector is properly aligned and the edges are not on top of the sensor.
Anyone experienced this on their s5?
griffin_1 said:
Hi,
Lately i have been noticing that the proximity sensor on calls on my s5 is not working properly. Once i answer/make a call, when i place the phone in my ear it shuts down the screen but the problem is when i take it away from my ear, the screen doesn't turn back on.
I tried the the testing menus (*#0*# or something like that) and when i placed my finger close to the sensor it detected, going green and vibrating but it doesn't go away from that state.
The only thing that changed was that i applied a glass screen protector a few days ago and im thinking it could be that, but its strange because its only when i back away from the screen that it doesn't register, so i don't know if that or not. Also, the protector is properly aligned and the edges are not on top of the sensor.
Anyone experienced this on their s5?
Click to expand...
Click to collapse
You have to change the proximity sensor or cancel it(cutting the flat)
I ended up removing the screen protector and it went back to working properly =/ I can't really put it back on now because it attracted specks of dust and it doesn't glue well now =/
Cutting it flat means it deactivate it? Because i find it useful for phone calls
griffin_1 said:
I ended up removing the screen protector and it went back to working properly =/ I can't really put it back on now because it attracted specks of dust and it doesn't glue well now =/
Cutting it flat means it deactivate it? Because i find it useful for phone calls
Click to expand...
Click to collapse
Cutting it means deactivate fully, even in calls display stay on.

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