Proximity Sensor intermittent - HTC Desire S

First time poster, though been a regular lurker.
It seems I have a slightly dodgy proximity sensor. Have checked with one of the proximity sensor apps and while the sensor detects if I have my hand over it, it is very unreliable when I take my hand off. It can take from anywhere from 1 to 30 seconds or sometimes never.
While ive been through other threads where people have a completely failed sensor, does anyone have this intermittent problem. Also is this a hardware or software issue.
Im currently htc-dev unlocked running Pacman v15.0.

Out there is a tool for recalibrating the sensor, but you would need to be S-OFF I think and it's done with a service tool (a special PG88DIAG.nbh)
Let me know if you are willing to try it, but it is VERY dangerous if you do the wrong things.

I had the exact problem from the very beginning. Got a phone and the very next day had a screen protector applied. For a few days proximity sensor created problems. The screen would go black when the call started, but until the call did not end, there was no way to bring the screen back. So, I used an app just like yourself to check and saw the same thing happening. Ultimately read extensively and realised it was due to screen protector. Took a scissor and cut off the protector above the sensor. A few months later when I had a new protector (of a different company) applied the same problem reappeared, so I had to cut it off from the top. Except that this time around I was sort of expecting it. I hope this help! :fingers-crossed:

I had the same problem and it continued no matter whether i remove the protector or cut the portion....im unable to most awesome ROM's.......only n sense 4.0 im able to re turn on the screen using power button.if there a way to completely disable this turn off during calls irrespective of the ROM its highly appreciated......
Looking forward for the solution

Jann F said:
Out there is a tool for recalibrating the sensor, but you would need to be S-OFF I think and it's done with a service tool (a special PG88DIAG.nbh)
Let me know if you are willing to try it, but it is VERY dangerous if you do the wrong things.
Click to expand...
Click to collapse
An update to my situation.. I ordered a new proximity sensor on e-bay and have replaced the same on my phone now. While I was at it, I cleaned up the window as it was pretty grimy and could have been the source of trouble. Also cleaned up the contacts with Isopropyl alcohol. End result.. Im still having the same problem!!
Im pretty sure now that its not a hardware problem and has to do with the calibration. What I have noticed that the sensor works fine in bright sunlight but not when there is less light around. Also am not using a screen guard!
Would it be possible to guide me to the right tools to recalibrate please?

Sorry, I haven't done this myself, but I'll search a bit how it's done by HTC.
They are using a special holding station where the devices are calibrated.

Related

[Q] Dresire S - Proximity Sensor Problem

Got a brand new DS couple of days back and....right from opening the box..the first call..proximity sensor is playing up. Most times i have to pull out the battery to end the call.
Tried the following with no result
1) Installed DHD Proximity re-calibrator
2) Factory reset
3) Installed Vitrous Unity 1.27
4) Back to factory rom, blew hard between ear piece and sensors
5) Removed screen protector and tested
I have S- Off and really dont want to go through the pain of visiting HTC. Would greatly appreciate some help here ...as always !
did you press the back button in between the call?
this has happened to me on stock rom only if i press the back button during the call
i haven't tried it on LBC rom yet
sujitht said:
Got a brand new DS couple of days back and....right from opening the box..the first call..proximity sensor is playing up. Most times i have to pull out the battery to end the call.
Tried the following with no result
1) Installed DHD Proximity re-calibrator
2) Factory reset
3) Installed Vitrous Unity 1.27
4) Back to factory rom, blew hard between ear piece and sensors
5) Removed screen protector and tested
I have S- Off and really dont want to go through the pain of visiting HTC. Would greatly appreciate some help here ...as always !
Click to expand...
Click to collapse
I noticed that only half the proximity sensor is visible, the other half is covered by what appears like black plastic part. Is this how it is supposed to be?
My proximity sensor is completely visible.
No..i haven't pressed the back button.
mikeyd85 said:
My proximity sensor is completely visible.
Click to expand...
Click to collapse
Is it the left sensor of the two sensors?
I have exactly the same problem. The issue seems to be that Desire S proximity sensor active distance is 9cm, when on my older Desire ir is only 1cm.
When working with some Proximity sensor tools, I have discovered, that you need to put your phone like 25cm (have no idea, how many inches) away from any obstacle in 30degree radius. If that is followed, I haven't been able to recreate a battery pull ocasion of sensor failure. However in real life talking, it is impossible to guarantee.
That there must be some sensor configuration possibilities, so that we could decrease sensibility to minimum distance. Such change should solve this sensor bug, as it would be normal operation distance.
Maybe some dev knows, how to play with proximity sensor?
Yeah, I have had this problem a long time with this phone didn't happen that much at first then it became more and more apparent.
Found the problem and solution, it lies with the screen protector, yes it might be transparent but the sensor detects it. Using a sensor testing app from the market it suggested the sensor was covered almost all the time.
So the solution was replace the protector with new one but cut an arc at the top just big enough around the sensor at the top left, easy fix now in call screen is more responsive.
Sent from my HTC Desire S using XDA Premium App
Totaly plausable question,but where is the sensor?
bleach1 said:
Totaly plausable question,but where is the sensor?
Click to expand...
Click to collapse
Top left of the screen in opposite place to led, if you tily screen under light you should see the sensor reflect back at you
Sent from my HTC Desire S using XDA Premium App
Thanks will adapt my screen protector
Sent from my HTC Desire S using XDA Premium App
Proximity sensor
I've been having the same issue. I gave my DS to the HTC workshop and they said it was faulty hardware. They will be replacing the system board since the sensor is soldered to it (under waranty).
Before sending it in, I tried a few roms and hacks but it was never resolved. I recommend you visit your local HTC warranty center.
I have the same problem with the proximity. I installed an app called Anyunlock which seems to have solved the problem. It seems to be able to wake it when the screen turns off after a call. The app allows you to unlock with the volume key and replaces the lock screen with its own. I hope this keeps working

[Q] Proximity sensor fail

Hi,
I recently replaced my cracked screen and all went well, expect that now the proximity sensor doesn't seem to work 90% of the time. When I make a phone call the screen goes off and it won't come back on when I move the phone away from my face. Either party has to hang up in order to get the screen back on. I've opened the phone up and double checked the ribbons and cables, everything seems ok.
The sensor itself appears to be fine, it's connected direct to the motherboard by the looks of things. I've wiped the phone completely just in case it was software related but that hasn't helped. Has anyone got any advice on how to fix this? I guess I could try to source a broken One S and replace the motherboard, but I don't want to spend too much on getting it working.
Any troubleshooting advice most welcome..
Cheers...
Mines been doing this since the htc repair centre had it,but its got a lot worse recently, proper random though it will work say 10% of the time.
I can't help with the sensor but I set the power button to end calls, its in the accessibility tab in settings, does make it impossible to use the key pad for options on phone calls though.

Proximity sensor doesn't work during phone calls

My screen goes black when I am in a phone call and it does not turn on unless I hold the power button or something like that. I have already went to the proximity settings to test that it is working.
Any ideas?
Firmware version? Seems to be a bug in last firmwares. Also had this issue some time. Now it seems to be gone.
punkt said:
Firmware version? Seems to be a bug in last firmwares. Also had this issue some time. Now it seems to be gone.
Click to expand...
Click to collapse
.In the process of backing up my phone atm to try a factory reset. I'm on latest T-mobile version though.
How did you fix yours?
Bump. Anyone? Is there a fix or is my sensor faulty? Because if it is I can still send it back in for a replacement. Sometimes it will work fine, and sometimes it won't.
I've got similar problem. When sensor is activated, it's keeping activated even if nothing is in front of sensor, so I have to wait for other side to end a call.. any suggestions?
EDIT: problem solved-> I just cleaned the glass on proximity sensor, maybe some dust was there
xdomx said:
I've got similar problem. When sensor is activated, it's keeping activated even if nothing is in front of sensor, so I have to wait for other side to end a call.. any suggestions?
Click to expand...
Click to collapse
I also have a problem with phone's proximity sensor. With me, it shows some signs of work right after i boot up the phone. In service menu (*#*#7378423#*#*) -> Proximity switch starts with On value and then goes Off, On, Off, On.. a cycle of at least one minute. The interesting thing is when i cover the sensor it stays On, which means it detects its working. I suppose the sensor is faulty, as I tried several suggested methods to resolve this issue: pressing firmly on top of the sensor, factory resets, reinstalling the software with Sony's PC software kit, some applications from Google market, etc. None of them helped.
As I bought my phone 2nd hand, I see the upper speaker is pressed on its left side a little bit, as if the phone was dropped exactly on this spot at the speaker (which I find is almost impossible, as the front panel is perfect without scratches or anything) or somehow it was pushed with some sharp object. I explained this as it might have a link with the proximity sensor issue, or it may not be connected to it, not sure.

Anyone else having this problem?

When I try to pull down the notification bar on the right the screen goes black. Also turns off the always on display. I'm assuming it's something with the Proximity sensor. Tired of all the little bugs and problems with this phone. I’m returning it. Just curious if anybody else is having this problem.
https://youtu.be/moTuJP06JCw
alnova1 said:
When I try to pull down the notification bar on the right the screen goes black. Also turns off the always on display. I'm assuming it's something with the Proximity sensor.
Click to expand...
Click to collapse
No, mine isn't doing that. You might have a dud.
alnova1 said:
When I try to pull down the notification bar on the right the screen goes black. Also turns off the always on display. I'm assuming it's something with the Proximity sensor. Tired of all the little bugs and problems with this phone. I’m returning it. Just curious if anybody else is having this problem.
https://youtu.be/moTuJP06JCw
Click to expand...
Click to collapse
I've had that happen on my Pixel 2 XL. Only once or twice and restart fixed it every time.
It's definitely the prox sensor. Always On Display shuts off when the phone is in your pocket or face down, which is detected by the proximity sensor, so that's totally normal. As far as it happening on the home screen, it seems like the phone thinks you're in a call, which would use the proximity sensor to turn the screen off near your head. I would reboot as @jimv1983 suggested and see if that works.
Are you using a screen protector? Sometimes those can cause issues with the proximity sensor, but usually it just causes the screen to shut off and not come back on during a call as it senses the protector at all times instead of your face.
fury683 said:
It's definitely the prox sensor. Always On Display shuts off when the phone is in your pocket or face down, which is detected by the proximity sensor, so that's totally normal. As far as it happening on the home screen, it seems like the phone thinks you're in a call, which would use the proximity sensor to turn the screen off near your head. I would reboot as @jimv1983 suggested and see if that works.
Are you using a screen protector? Sometimes those can cause issues with the proximity sensor, but usually it just causes the screen to shut off and not come back on during a call as it senses the protector at all times instead of your face.
Click to expand...
Click to collapse
I had a case with a built-in screen protector on it and I thought that might be what was causing it but after taking it off it still did it. Weird thing though once I put it on the wireless charger it stop doing it. Hasn’t done it all day even with case on. Weird. Still thinking about taking it back to Best Buy and swapping it out.
I've had a similar issue where the proximity sensor will not deactivate as long as a call is going (can't hangup, can't unlock, can't speaker phone, can't mute, etc.). I have to wait for the other person to hang up. Get an automated robo-call you accidentally answered....oh well, guess you have to listen to them. I have never been so angry at a phone as I am with this one. Especially as expensive as it is. I absolutely would NOT have bought this phone if I knew ahead of time how aggravating this would be! Thinking of sending it back. BUYERS BEWARE!
tonic1080 said:
I've had a similar issue where the proximity sensor will not deactivate as long as a call is going (can't hangup, can't unlock, can't speaker phone, can't mute, etc.). I have to wait for the other person to hang up. Get an automated robo-call you accidentally answered....oh well, guess you have to listen to them. I have never been so angry at a phone as I am with this one. Especially as expensive as it is. I absolutely would NOT have bought this phone if I knew ahead of time how aggravating this would be! Thinking of sending it back. BUYERS BEWARE!
Click to expand...
Click to collapse
Had this very issue with my pixel XL and blowing on the top speaker grille of dust with compressed air solved it.
But if this is out of the box that sucks. It should not be like that. My pixel was approaching two years when that happened.

Fingerprint sensor issue

A bit of a strange issue. The fingerprint sensor has been working 100% without issue since getting the phone.
I let the kids use my phone for an hour to watch cartoons. After that it started not recognising my finger. I cleaned the glass, removed the case, re created the fingerprint profiles. I made a mistake and tried an OTA update, which then had to fully reset the phone, but that's another issue.
I am using a tempered glass protector. I took it off for 1 day to see if that made a difference and not really. Even being extremely careful after 1 day there were tiny scratches on the screen.
Wondering if anyone else has had an issue like this. I did reload it with the latest Miui 12 stable, but made no difference. Not sure if the kids were pressing it constantly, but no signs of damage.
It will vibrate and attempt to recognise my finger, but just fails. Then the next time it may work, but intermittent and really annoying.
I have found that it seems to work better when out of a case for some reason. Maybe the sides of the case resting on the glass.
Overall I think this is a great phone. Shame about no development happening. As I use it debloated with MicroG it means I can't do ota updates.
I'm considering getting a Galaxy, Oneplus or Pixel phone. Until the possibility of more development happens if ever
We've had ours for about 3-4 days now and I have found the FPS to be crap out-of-the-box. Exactly the same issues as you, and with just the default screen protector on it. Sometimes it works fine at first attempt, at other times I have no choice but to enter the PIN to unlock.
I made the mistake of letting my kids use the phone again a few days ago. After that the fingerprint sensor would sometimes not be detected. The phone randomly won't switch on and have to hold down power for about a minute then it turns on. Very annoying, but doesn't happen all the time. Did it almost all weekend, then today it's working almost fine.
Did test in TWRP and didn't have the same issue. So making me think it's either software or fingerprint sensor related, causing the issue.
Still think the phone is great and there's not really another phone on the market I'd prefer at the moment, just need some custom rom support. A work friend has a Note 8 and his will be 50% battery while this is still about 85% or so
Same
birleytweet said:
A bit of a strange issue. The fingerprint sensor has been working 100% without issue since getting the phone.
I let the kids use my phone for an hour to watch cartoons. After that it started not recognising my finger. I cleaned the glass, removed the case, re created the fingerprint profiles. I made a mistake and tried an OTA update, which then had to fully reset the phone, but that's another issue.
I am using a tempered glass protector. I took it off for 1 day to see if that made a difference and not really. Even being extremely careful after 1 day there were tiny scratches on the screen.
Wondering if anyone else has had an issue like this. I did reload it with the latest Miui 12 stable, but made no difference. Not sure if the kids were pressing it constantly, but no signs of damage.
It will vibrate and attempt to recognise my finger, but just fails. Then the next time it may work, but intermittent and really annoying.
I have found that it seems to work better when out of a case for some reason. Maybe the sides of the case resting on the glass.
Overall I think this is a great phone. Shame about no development happening. As I use it debloated with MicroG it means I can't do ota updates.
I'm considering getting a Galaxy, Oneplus or Pixel phone. Until the possibility of more development happens if ever
Click to expand...
Click to collapse
I have the same issue since I got the phone, the fingerprint sensor is ****, I opted to unlock it via bluetooth by recognizing my smartwatch.
Hydrate or moisturize your fingers/thumbs
Much faster accuracy unlock speed
Try to Change the Glass Protector
Your using alcohol based hand sanitizer, these remove moisture from the hands making them dry. Just put some lotion you'll have much better response.
What game were your children playing on phone?
Have you looked at their fingers?
I don't like on screen fingerprint sensors. Maybe too much pressure leads to an issue.
---------- Post added at 12:29 ---------- Previous post was at 12:22 ----------
Potterified said:
We've had ours for about 3-4 days now and I have found the FPS to be crap out-of-the-box. Exactly the same issues as you, and with just the default screen protector on it. Sometimes it works fine at first attempt, at other times I have no choice but to enter the PIN to unlock.
Click to expand...
Click to collapse
Peel off the screen protector, it is bull***t.
Also, I remember to have activated the "show touches" option on developer settings. It was almost unable to recognise fingerprint. Deactivated again.
Hardware fingerprint sensor is always better. :crying:

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