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Old May 27th, 2012, 09:33 AM   #1 (permalink)
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Default Proximity sensor not working

Anyone else having this problem? The proximity sensor seems to have a mind of its own, it works maybe 1 out 10 calls I make. Normally when I make a phone call and put the phone to my ear the display will stay on for maybe 5 to 10 seconds then turn off, once I pull the phone away from my ear I have to push the power key to turn the display back on whether still on a phone call or the if the call ended. I called sprint, no help at all. I went to a sprint store, they went through the display settings, it started working right, I asked what she did, she said she didn't know. what? I looked at the display setting and nothing was changed so I have no clue at this point. Please help!

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Old May 27th, 2012, 11:34 AM   #2 (permalink)
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I had that problem the first few phone calls I made but it just eventually corrected itself. Try doing a power off and on with fast boot off
Or try making some test calls, then keep covering and uncovering the sensor until it works correctly
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Old May 27th, 2012, 11:43 AM   #3 (permalink)
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Originally Posted by flawless45 View Post
Anyone else having this problem? The proximity sensor seems to have a mind of its own, it works maybe 1 out 10 calls I make. Normally when I make a phone call and put the phone to my ear the display will stay on for maybe 5 to 10 seconds then turn off, once I pull the phone away from my ear I have to push the power key to turn the display back on whether still on a phone call or the if the call ended. I called sprint, no help at all. I went to a sprint store, they went through the display settings, it started working right, I asked what she did, she said she didn't know. what? I looked at the display setting and nothing was changed so I have no clue at this point. Please help!
Welcome back Flawless,
The first question to ask is if there is a screen protector installed on the phone's screen. Screen Protectors (especially Anti-Fingerprint/matte finish) can make the proximity sensor freak out since the sensor is beneath the screen. If you have a screen protector make sure it has a cut out in the material to allow the sensor to operate properly.

See this diagram:




Troubleshoot:
*Be careful when poking around in these menus

On your phone open the dialer, like you are going to dial the phone number of a friend. Instead dial *#*#3424#*#* (*#*#DIAG#*#*). It will take you to the HTC Function Test application (v3.01.01g). On the white screen, press accept and look for the "P-Sensor Test". Press the check box and hit 'run' and it will take you through a test of the proximity sensor. This will help you further test the problem.

Please report back on what you find

(Anyone familiar with HTC's Function Test application, will notice they have changed it added more tests with Sense 4.0 )
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Old May 27th, 2012, 12:39 PM   #4 (permalink)
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I like the sensor test in Elixir 2, tap the triangle to start, tap the sensor name to see sensor data.
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Old May 27th, 2012, 02:24 PM   #5 (permalink)
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Thank you for the responses everyone! Before anyone responded, I went ahead and did a master reset and that fixed the problem. Looks like it was a little glitch. I do have a screen protector and it is cut out around where the sensor is. I went ahead and tried the test PyroSporker suggested and it worked great. Thanks again!
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Old May 27th, 2012, 02:34 PM   #6 (permalink)
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Originally Posted by flawless45 View Post
Anyone else having this problem? The proximity sensor seems to have a mind of its own, it works maybe 1 out 10 calls I make. Normally when I make a phone call and put the phone to my ear the display will stay on for maybe 5 to 10 seconds then turn off, once I pull the phone away from my ear I have to push the power key to turn the display back on whether still on a phone call or the if the call ended. I called sprint, no help at all. I went to a sprint store, they went through the display settings, it started working right, I asked what she did, she said she didn't know. what? I looked at the display setting and nothing was changed so I have no clue at this point. Please help!
I had this same exact problem with my EVO and my EVO 3D til this very day. The proximity sensor will randomly come on and off during a call even when the phone is up to my ear. The only way for me to get the screen to stay off is to hit the power button to shut off the screen. I hope that this new EVO has this problem corrected and your issue is an isolated event.
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Old May 28th, 2012, 09:27 AM   #7 (permalink)
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Well it's happening again. I've been doing some testing and I've found that when it's dark or dim the sensor doesn't work correctly, it keeps dimming before I put my hand over it for the test. If I'm outside in the sunlight or next to a lamp it works exactly like it is supposed to. Anymore ideas? I'm stumped once again. Thanks again in advance.
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Old May 28th, 2012, 10:30 AM   #8 (permalink)
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Sounds like a bad sensor. It happens.

My Evo 4G and 3D never had this problem, the majority didn't.

Lemons happen, there's no rhyme or reason to it.
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Old May 28th, 2012, 08:22 PM   #9 (permalink)
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Originally Posted by flawless45 View Post
Well it's happening again. I've been doing some testing and I've found that when it's dark or dim the sensor doesn't work correctly, it keeps dimming before I put my hand over it for the test. If I'm outside in the sunlight or next to a lamp it works exactly like it is supposed to. Anymore ideas? I'm stumped once again. Thanks again in advance.
Thanks for the update. Have you installed/restored any applications since your factory reset? Could something installed be causing a software conflict?

Also, How much clearance around the sensor does the Screen Protector leave you (which brand/kind of protector is it) ? It sucks I know, and wastes a good screen protector but is there any chance you can remove the screen protector and go through the reset process again? Eventually seeing if the same problem happens without the protector at all?

While I'm leaning towards a hardware fault/bad sensor, I think it is important to rule out other variables first.
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Old May 28th, 2012, 08:49 PM   #10 (permalink)
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Default Proximity problems

Hi...I was having that problem too. I went to *2 and there said there were two updates available. I did the updates and it has seemed to fix the problems..
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Old May 28th, 2012, 11:47 PM   #11 (permalink)
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I've always been pretty lucky with this... Both Evos I've had have been spot on with the proximity sensor... Now my Samsung Moment and my gf's Samsung stratosphere.... That is a different story.. Talk about annoying.... The proximity sensor nearly never worked when taking the phone away from my face.. My gf complains about this daily with her samsung... But both 3vo and ltevo have been awesome in my own experience
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Old May 28th, 2012, 11:51 PM   #12 (permalink)
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Hey Flawless, you noticed any screen lifting in the corner where the sensor is located? (idea from XDA)

If you would like another place to follow this issue, see this thread over at XDA:
Proximity Sensor - A software issue? - xda-developers

I'm extremely disappointed to see that they stole my exact troubleshooting instructions word for word without notating this thread...
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Old May 29th, 2012, 06:39 AM   #13 (permalink)
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My screen protector is the zagg one from best buy, I'd really hate to remove this thing if I don't have too. Here's a few other things I've come across. I also got both my parents the same phone and they have the exact same screen protector I have on mine, on my dad's phone the sensor is actually covered slightly by the screen protector but his phone works perfectly in light or dark areas. My mothers phone is not covered at all and it works like mine does with the sensor failing in dark or dim areas.
I checked *2 and there was only a PRL update there so I did that.
I don't have any raised screen corners anywhere on the phone or near the sensor so I don't think it's that, I tried pressing the corner in and nothing changed.
Thanks for the link PyroSporker, they really should have noted this thread originally, bummer. I'm glad to see others are having the same issue but disappointed at the same time that something so simple could go wrong on this phone but it figures.
I am debating on removing the protector and doing a reset once again but I don't want to download all my apps again, Isn't there an app for that? I remember using one 2 years ago on my OG 4g but never went back to it. I may wait and see if someone comes up with something else over the next day or 2.
Thanks again for everyone's help so far!
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Old May 30th, 2012, 03:14 PM   #14 (permalink)
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Quick update:

I followed that link again that PyroSporker gave and it turns out the screen protector is covering the proximity sensor, it's hidden just to the left of the light sensor. I used razor blade and cut just a little back to expose the sensor and now everything is working perfectly! thanks again everyone!
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Old May 30th, 2012, 03:34 PM   #15 (permalink)
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I will also say if you have glasses and you place the proximity sensor in front of your frames and they are reflective enough it will mess with the proximity sensor.
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Old May 30th, 2012, 03:45 PM   #16 (permalink)
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Quote:
Originally Posted by flawless45 View Post
Quick update:

I followed that link again that PyroSporker gave and it turns out the screen protector is covering the proximity sensor, it's hidden just to the left of the light sensor. I used razor blade and cut just a little back to expose the sensor and now everything is working perfectly! thanks again everyone!
I was kind of figuring this from the beginning.
Glad you got it all worked out.


Though some people may like their product, personally I'm chalking this up as yet another reason to hate Zagg. They are just terrible!
(their only small positive I will give them is that they allow free lifetime replacements and stick by their product, even if it is shoddy)
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Old May 31st, 2012, 07:36 PM   #17 (permalink)
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Quote:
Originally Posted by flawless45 View Post
Quick update:

I followed that link again that PyroSporker gave and it turns out the screen protector is covering the proximity sensor, it's hidden just to the left of the light sensor. I used razor blade and cut just a little back to expose the sensor and now everything is working perfectly! thanks again everyone!
Thank you everyone for this thread, I was having the same problem too. I took it back to best buy and told them I think the ZAGG is messing it up. The girl took it off, and it worked perfectly. She even put a new one on at no charge, and it still works.
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Old May 31st, 2012, 09:30 PM   #18 (permalink)
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Good thread.... I am having the same issue. I've only run a screen protector for the first week when I had my Hero. Never since... The Best Buy guy said I'd LOVE it and never know it was there. He said he'd give me my money back if I brought it back within 30 days. Tomorrow will be 11 days. I'm taking it in for removal and to get a refund. Thanks for pointing it out.
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Old May 31st, 2012, 09:49 PM   #19 (permalink)
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I believe the proximity sensor uses an IR beam... And even if a screen protector looks clear to our eyes, that doesn't mean that IR passes through the same way that visible light does. As I recall, zagg protectors are one of the thickest covers out there, and it wouldn't surprise me if it unintentionally had some reflective/refractive properties in the IR band.

Now you know why some protectors have cutouts. Sometimes, function trumps form for very good reason.
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Old June 1st, 2012, 01:34 AM   #20 (permalink)
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I have a zagg on mine which I put on myself.. And I'm having no issues... It is cut out in that spot for a reason so it needs to be perfect... I do Window tint on cars so that little screen wasn't too hard.. Maybe whoever is putting these on for you guys needs some more practice... Just saying lol
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Old June 1st, 2012, 07:23 AM   #21 (permalink)
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The zagg screen is only cutout for the light sensor, it is not cut out for the p_sensor. The p_sensor is about an 1/8" to 1/4" to the left of the light sensor. How I installed it is not the problem, "which was perfect", how the screen is made is the problem, "which is not perfect".
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Old June 1st, 2012, 02:41 PM   #22 (permalink)
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I can see the P Sensor through the cutout in mine. If that's what it is, it's definitely on the edge of the cutout. Either way, he talked me into getting one. Said I could have my money back if I brought it in and said I didn't like it. I'll let you know in an hour when I get off work!
For the record, I'd get it removed today even if it weren't causing issues with the proximity sensor. Me no likey.
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Old June 1st, 2012, 03:00 PM   #23 (permalink)
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Fyi for anyone not sure exactly where this sensor is:

You can't see the sensor unless you put it in test mode in a dark room. Follow the steps PyroSporker wrote out in post #3 and you will see a dim red light to the left of the light sensor.

Also, I left the screen protector on as is on my father's phone because it did not affect his the way it did my mother's and mine. Still strange how only some phones are doing this and others are not.
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Old June 1st, 2012, 07:56 PM   #24 (permalink)
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Almost positive the cut out is for the proximity sensor...it would make sense..how could it tell what was screen protector...and what is your face..look at this diagram from pyro:

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Old June 3rd, 2012, 11:40 PM   #25 (permalink)
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For those visual learners out there:

The sensor bay is 1/8" wide and each half is ~1/4". The right half with the whitish Ambient Light Sensor is easily seen almost anytime. The left half is inset further and has a dark color. Difficult, near impossible, to see unless you add some exterior light or make a fake call with the phone not to your ear (a faint red glow can be seen)

My apologies for the quality. Photo taken with an Evo 3D while holding an LED flashlight. + MSPaint Skillz
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Old June 4th, 2012, 12:56 PM   #26 (permalink)
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I agree with Pyro... You really have to look to see the P sensor. The light sensor is easy... I've removed my screen protector and have since had ZERO issues with my proximity sensor. It works perfect now. And it feels so goooood to have it naked!
On a side note. The protector that BB sells only has a single cutout. There is no way that was made to open both sensors. It is just the light sensor only.
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Old June 4th, 2012, 05:40 PM   #27 (permalink)
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another view of the proximity + light sensor area.

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Old June 9th, 2012, 08:27 PM   #28 (permalink)
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Default call screen turns off?

when calling the screens turns off way to soon! I have to press the standby/power button again,also I downloaded several apps like call confirm,safe call etc....... for the accidental call when in pocket,but something very strange has happend with the apps and the call screen turning off too soon.while talking with someone and I go to home screen or people tab the screen shuts off again but this time it goes to the lock screen and will not unlock?! as soon as I touch the screen it turns off,then I push the standby button and again it turns off and i can't pull the ring to unlock? I was stuck on a voicemail form about 5 minutes until time ran out and it hung up on me. I had to uninstall call confirm/safe call apps.
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Old June 9th, 2012, 11:57 PM   #29 (permalink)
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Quote:
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when calling the screens turns off way to soon! I have to press the standby/power button again,also I downloaded several apps like call confirm,safe call etc....... for the accidental call when in pocket,but something very strange has happend with the apps and the call screen turning off too soon.while talking with someone and I go to home screen or people tab the screen shuts off again but this time it goes to the lock screen and will not unlock?! as soon as I touch the screen it turns off,then I push the standby button and again it turns off and i can't pull the ring to unlock? I was stuck on a voicemail form about 5 minutes until time ran out and it hung up on me. I had to uninstall call confirm/safe call apps.
As far as the screen turning off when you're on a call - that sounds like the same issue in this thread: Proximity sensor not working
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Old June 10th, 2012, 03:08 AM   #30 (permalink)
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also it sounds like some of those apps may not yet be compatible with ICS and/or this model htc handset. i would also send a note to the dev or check the website to make sure those apps are compatible.

also do you use a screen protector and/or a phone case? either could be interfering with the sensor. debris could also fool the sensor.
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Old June 10th, 2012, 02:05 PM   #31 (permalink)
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10-4...... it is the Zagg HD shield,right on the prox sensor its has debris i peeled it away and it works as it should.I will go back to Best By to get the shield reinstalled.Thanks,also i think your right on the apps not working very well with ICS yet
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Old June 27th, 2012, 09:37 PM   #32 (permalink)
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Default Evo 4GLTE Proximity sensor, Aux port noise induction

The Evo 4g LTE its having several issues.

I already try to deal with the people of HTC but they are not giving any kind of fix to this problems

Proximity sensor works perfect with or without screen protector ONLY in sunlight or with halogen lights its fail with neon lights or in dark places

Try to use the car charger and connect the phone in to the Aux port you will get a lot of noise like dc interference or induction, i try with several vehicles different charger cables etc. its hardware failure , also they send a rubber protector maybe because they know that the phone works bad when get in contact with the skin ( like the iPhone antenna issue)

I told them this its a lemon phone please fix it. the said send my phone at my expenses find another phone meanwhile when check your phone " insane".

this kind of problems need a recall if the rest of you call to htc and complain about the problem it will maybe happen .
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Old August 10th, 2012, 09:49 PM   #33 (permalink)
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FYI guys. The last firmware update fixes this issue. I had it also when I first got the phone. All is well now...

Here is a list of Description of Enhancement/Fix
Sprint Community: HTC EVO 4G LTE: HTC 4G LTE Software Updates
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Old January 18th, 2013, 12:52 AM   #34 (permalink)
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Funny, I have this error for a long time, suddenly, when I unplug my phone and to wipe the dust, all wrong Proximity sensor has completely disappeared
My phone is HTC one S...
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HTC EVO 4G LTE
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The HTC EVO 4G LTE is Sprint's version of the HTC One X. It comes with all the same specs, except for the processor, internal storage and radios (includes LTE). And aesthetics are also significantly different. While many users have complaine... Read More



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