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[Q] samsung focus 7 - reset proximity sensor

how do i calibrate proximity sensor from the diagnostic menu. for samsung focus.
Basically my phones screen goes blank when i make a call and I have put my thumb on the proximity sensor to "wake" it up. I was reading somewhere that this could be "fixed" by resetting proximity sensor through diagnoistic menu. but i couldnt figure out how

Actually, the same thing happens on my Optimus 7. When I make a call, the screen goes blank, unless I have Bluetooth or headset attached. It takes a few seconds, or as you described a hand wave over the proximity sensor to bring back the screen.

Dunno if you got this answered but...
From the Diagnosis keypad, type *#0*#
Then tap toe Proximity button.

Issue with proximity sensor in Samsung focus sgh i917
I have the same problem. My LED screen broke recently and replaced it.
It looks like after the screen replacement, the phone's proximity sensor is always in detected mode [in the diag]. So when ever a phone is made or answered the LED screen goes blank disabling all functionality till the other person disconnects.
I ran the diag but it doesn't give me an option to calibrate the sensor. I tried to install the latest diag tool too but same results. There is only one button, "EXIT".
The diagnostic app version is .0628
OS version is 7.10.7720.68
Please help.

kiran.adoor said:
I have the same problem. My LED screen broke recently and replaced it.
It looks like after the screen replacement, the phone's proximity sensor is always in detected mode [in the diag]. So when ever a phone is made or answered the LED screen goes blank disabling all functionality till the other person disconnects.
I ran the diag but it doesn't give me an option to calibrate the sensor. I tried to install the latest diag tool too but same results. There is only one button, "EXIT".
The diagnostic app version is .0628
OS version is 7.10.7720.68
Please help.
Click to expand...
Click to collapse
Look on here for version .0109 or newer of the diag tool
Sent from my SGH-i917 using XDA Windows Phone 7 App

Help has arrived
kiran.adoor said:
I have the same problem. My LED screen broke recently and replaced it.
It looks like after the screen replacement, the phone's proximity sensor is always in detected mode [in the diag]. So when ever a phone is made or answered the LED screen goes blank disabling all functionality till the other person disconnects.
I ran the diag but it doesn't give me an option to calibrate the sensor. I tried to install the latest diag tool too but same results. There is only one button, "EXIT".
The diagnostic app version is .0628
OS version is 7.10.7720.68
Please help.
Click to expand...
Click to collapse
I know exactly how to fix your problem. I had the same issue! I replaced my Samsung Focus's LED screen, and exactly the same problem as yours! I tried everything here, but didn't work. I finally found the solution. When you take the old screen off your phone, there is 3M tape (black) between the two little sensor. That rips off with the old screen when you take it off. The one sensor shoots infra-red, which should not be detected by the sensor right next to it. so, when that black glue is not there, it senses it and shots the screen off. So, what i did, i took a tinny piece of sticky black rubber from that stuff that you fill the whole in your car tire when it's punctured, the tire fix kit, and put it between the two sensors, below the screen of course, and to my amazement, it now works!
try it and let me know if it worked! Make sure though that you don't cover the sensors with it. I'm sure it will work. hope you haven't spend more money to fix it and that I'm not too late to give you the solution.
Later!

[Q] Samsung Focus 1.3 Proximity/Light Sensor problem

Does anyone know if there is an issue with the proximity and light sensors in the Samsung Focus v1.3? Neither of them work on mine.
When I go into Diagnosis, the Proximity Sensor test shows XXX where the detection value would be, and the light sensor says "Val: 0000" in red where the ambient light value would be.
This means whenever I make a call, I have to hit the sleep button on the phone to turn the screen off, lest I accidentally press buttons on it with my ear while I'm talking.
All other features and functions of the phone work just fine. I've dropped it once, but the Prox/Light sensor issues started occurring before that.
Any assistance would be appreciated.

Might be a hardware issue i have the same problem, i tried to fix it by installing the factory ROM. No luck. I'm gonna bring it back to rogers to see if i can get it fixed :\

Similar problem
My phone will go to blank screen as soon as I hit "Answer" or for outgoing whet I tap "Call" so I can't put on the speakerphone or hangup. All butons and functions are disabled. I have to remove the battery to reset the phone or wait for the caller to hang up. On calling "VoiceMail" it just goes on and on before hanging up so removing the battery works faster and restarting the computer.
I have tried to adjust the proximity indicator as I read on another forum but it doesn't seem to make any difference. I have to add that this seems intermittent and sometimes it works normal and sometimes not.
Maybe "dropping it" has something to do with it. One forum said customer service wanted him to do a hard reset which I assume is the only way to get rid of the Mango update or any apps installed that may be a contributing factor. If anyone has any ideas let us know.

Blank Screen after finished calling with speaker mode on

Not sure if any of you had this but I notice my phone when placed on speaker mode, after calling my screen goes blank and none of the key function work (all buttons including home, power, etc) and I had to do a battery pull. I assume this may not happen as often but I recently get it a couple times already.
I spoke with the S2 guys and notice this happens to their handheld due to the sensor set. One best way to work around is simply Turn off proximity sensor under Call setting.
This happen when I had a 2.3.6 TGY KK5 stock rom.

Moodaleon said:
Not sure if any of you had this but I notice my phone when placed on speaker mode, after calling my screen goes blank and none of the key function work (all buttons including home, power, etc) and I had to do a battery pull. I assume this may not happen as often but I recently get it a couple times already.
I spoke with the S2 guys and notice this happens to their handheld due to the sensor set. One best way to work around is simply Turn off proximity sensor under Call setting.
This happen when I had a 2.3.6 TGY KK5 stock rom.
Click to expand...
Click to collapse
yeah buddy same thing happens with my device as well.. bt it doesent always have to be on speaker mode. on normal mode also sometimes my device goes blank..
anyone here help please.....

Several users on our russian forum have reported same problem on different ROMs (2.3.4, 2.3.5 and 2.3.6). Most of them are using phone calls about 60-90 minutes per day.
I never had this issue with my 2.3.5 Germany ROM, but I am using my phone for calls just for 5-10 minutes in a week.
Tip
You don't have to replace battery. Just long press power button (over 10 seconds), and phone should reboot.

I've seen the same problem on my phone, but after I pressed the power button for about 7 seconds and let go, the screen came back and I was able to hang up the call. I've turned off the proximity sensing (settings -> calls -> proximity sensor) and haven't seen the issue since then.

cocoa7 said:
I've seen the same problem on my phone, but after I pressed the power button for about 7 seconds and let go, the screen came back and I was able to hang up the call. I've turned off the proximity sensing (settings -> calls -> proximity sensor) and haven't seen the issue since then.
Click to expand...
Click to collapse
okk i wll give it a try........

my gf is experiencing this issue on her SGR as well. After a call, the phone will become unresponsive and the red spot(light sensor) near the speaker at the top of the phone will be lighted up.
using stock + ardatdat's 1.3A kernel (default settings).
will try the proximity sensor solution and hope the issue goes away.

PauseZ said:
my gf is experiencing this issue on her SGR as well. After a call, the phone will become unresponsive and the red spot(light sensor) near the speaker at the top of the phone will be lighted up.
using stock + ardatdat's 1.3A kernel (default settings).
will try the proximity sensor solution and hope the issue goes away.
Click to expand...
Click to collapse
yes buddy after unchecking the promixity sensor in call option it 0does work... bt still sometime red sensor glows and slows my phone down..... if anything of this kind is experienced then do share..

should be fine once you switch the proximity sensor off as thats what it seems to cause all the prob and the only thing u have to live with is ur screen doesnt go dim when you stick it to ur face while talking

[Q] New Nexus 5, screen black on making or receiving calls.

When I make or receive a phone call on my new Nexus the screen blacks out. I understand that it should black out when the phone is brought up to my ear, but it blacks out even though the phone is eighteen inches away from me. There is nothing on top of the proximity sensor and it is clean. The phone is not in a case. The sleep timer in set to two minutes. The cache partition has been cleared.
I think this happened after upgrading from Android 5 to 5.1, but I cannot be certain.
The AndroSensor app always reports that the proximity sensor detects something at 0.0 inches (with 12.7 mA), even though the sensor is uncovered.
I have seen several threads in various forums on this issue with the Nexus 5, but I have not seen a definitive answer as to what is wrong and what can be done about it.
Help would be very much appreciated as I need to know if it is a software bug that will be fixed as part of routine updates, if it is a user fixable problem (operator error!), or if the sensor is actually dead, in which case I can exchange the phone (Amazon uk).
Chasharv

Chasharv said:
When I make or receive a phone call on my new Nexus the screen blacks out. I understand that it should black out when the phone is brought up to my ear, but it blacks out even though the phone is eighteen inches away from me. There is nothing on top of the proximity sensor and it is clean. The phone is not in a case. The sleep timer in set to two minutes. The cache partition has been cleared.
I think this happened after upgrading from Android 5 to 5.1, but I cannot be certain.
The AndroSensor app always reports that the proximity sensor detects something at 0.0 inches (with 12.7 mA), even though the sensor is uncovered.
I have seen several threads in various forums on this issue with the Nexus 5, but I have not seen a definitive answer as to what is wrong and what can be done about it.
Help would be very much appreciated as I need to know if it is a software bug that will be fixed as part of routine updates, if it is a user fixable problem (operator error!), or if the sensor is actually dead, in which case I can exchange the phone (Amazon uk).
Chasharv
Click to expand...
Click to collapse
Just press the power button when that happens, screen will turn on again. Done.

Nexus 5 black screen: thanks, but more help needed
beekay201 said:
Just press the power button when that happens, screen will turn on again. Done.
Click to expand...
Click to collapse
Thanks for this, but if the power button it set to end the call it does indeed turn the screen on again, but of course also ends the call prematurely. If the power button is not set to end the call, then nothing happens when it is pressed during a call and the screen stays black. The only way out of the black screen under those circumstances is to hold the power button down to turn the phone off and then restart it!
Prior to the upgrade 5.1, from the version of 5 that came with the phone, when I made or received a call the screen remained active until I put the phone to my ear.
Further advice would be much appreciated.
Chasharv

Chasharv said:
Thanks for this, but if the power button it set to end the call it does indeed turn the screen on again, but of course also ends the call prematurely. If the power button is not set to end the call, then nothing happens when it is pressed during a call and the screen stays black. The only way out of the black screen under those circumstances is to hold the power button down to turn the phone off and then restart it!
Prior to the upgrade 5.1, from the version of 5 that came with the phone, when I made or received a call the screen remained active until I put the phone to my ear.
Further advice would be much appreciated.
Chasharv
Click to expand...
Click to collapse
if i make or answer a phone call, and put it on speaker, after a few secs it will turn the screen off automatically. If i then press the pwer button (i don't have the accessibility option on), it WILL wake the screen but doesn't end the call.
running stock LMY47D

Nexus 5 black screen, solved
beekay201 said:
if i make or answer a phone call, and put it on speaker, after a few secs it will turn the screen off automatically. If i then press the pwer button (i don't have the accessibility option on), it WILL wake the screen but doesn't end the call.
running stock LMY47D
Click to expand...
Click to collapse
Thanks for this, but the problem was that the screen blacked instantly on making or receiving a call and was unresponsive, so the only way forward was to press the power button. This either terminated the call or shut down the phone, according to how it was set, so neither was useful.
As I said originally, I suspected the proximity sensor was faulty as the a proximity detector sensor app always indicated that there was something close to it. Hence the phone would assume it was next to my ear when making or receiving calls, and so black the screen. This morning, for reasons that I don't understand at all as I have not changed anything on the phone, the proximity sensor is reported as working and the phone behaves as it should on making and receiving calls!
I suppose that either the sensor has an intermittent fault, or something in the phone's software has changed to permit it to work. I have a couple of week's left before the Amazon return window expires, so I will monitor the situation.
Thanks once more for the help.
Chasharv

I have the identical problem with my nexus 5 running stock kitkat. Makes it very hard to use the keyboard to reply to automated requests to "if... press 1, if.... press 2".
Is it possible to turn the proximity sensor off? I don't need it and it just causes problems for me.

[Q] Proximity sensor troubles, can it be disabled?

Lately, my proximity sensor has been giving me trouble - at least, I think it's the proximity sensor. The symptoms:
1) I can't unlock the phone unless there is enough ambient light. Generally not a problem, but a little inconvenient.
2) As soon as I start a call, the screen goes black and will not turn back on no matter what, making it impossible to bring up the dialpad or hang up. I've enabled the "power button to hang up" setting, but it doesn't seem to be doing anything. The only way to end a call is to wait for the other side to hang up or remove the battery. The former is fine if I'm actually talking to a person, but if I get into an auto-attendant tree I'm screwed. It happens regardless of whether I'm holding the phone to my face or not. Flat on a table, same behavior.
The phone is rooted, are there any apps or things I can do to verify that it's the proximity sensor? Is there any way to just disable the proximity sensor in software?

Use the hidden menu (3845#*850#) and go into device test.
There is a proximity sensor test there. As you move your hand near the sensor it wall say near and as you move it away it will give you a light reading.

Thanks - the top always says "Proximity: NEAR". The bottom one says "Light: off" If I wave my hand hear the sensor, it turns blue and give me a reading hovering around 10. Closer to the phone and it's red and gives me a lower reading. Holding my finger on the phone, completely blocking the sensor, gives me the "Light: off" reading again.
I'm not quite sure what to make of that.

I've had similar problems with my international version G3. Both times I have had to take off the back cover, remove the various screws around the top half of the phone, pull off the plastic casing, and then use compressed air to spray out the area around the proximity sensor. After this the phone works fine for a month or so.
Somehow dust seems to be getting into the phone quite easily. I'm wondering if the area around the speaker grill is not fully sealed.

I finally took the time to disassemble my phone and sure enough, the proximity sensor was filthy. A couple seconds with a can of compressed air and things seem to be back to normal.
Thanks!

I have a lg g stylo the sensor is so sensitive .. I wave my hand over my phone and the screen goes black I am trying to figure out how to turn it off ..

eriqjaffe said:
Lately, my proximity sensor has been giving me trouble - at least, I think it's the proximity sensor. The symptoms:
1) I can't unlock the phone unless there is enough ambient light. Generally not a problem, but a little inconvenient.
2) As soon as I start a call, the screen goes black and will not turn back on no matter what, making it impossible to bring up the dialpad or hang up. I've enabled the "power button to hang up" setting, but it doesn't seem to be doing anything. The only way to end a call is to wait for the other side to hang up or remove the battery. The former is fine if I'm actually talking to a person, but if I get into an auto-attendant tree I'm screwed. It happens regardless of whether I'm holding the phone to my face or not. Flat on a table, same behavior.
The phone is rooted, are there any apps or things I can do to verify that it's the proximity sensor? Is there any way to just disable the proximity sensor in software?
Click to expand...
Click to collapse
If it does become a problem there is an exposed module just for diabling prox sensor

Proximity Sensor Issue Solved
Just opened the Mobile yesterday night, and after a little hectic; i had managed to clean the dust from board sensors.
Working Perfect now, like a charm !