Database Users

Screen turns off right after phone calls are dialed

Hi folks:
Sorry if this problem has been covered before. I ran a search to try to see if I could find someone having this problem and could not find it. This problem started all of a sudden (without any ROM updates or nothing).
This is it: I make a phone call, and immediately after I press "TALK" on the screen, the screen turns itself off, and I don't have access to the keypad, or any of the touchscreen functionality.
I tried pressing all the hardware buttons to see if the screen would come back on, but nothing, it stays off.
Then, when I hang up the call (by pressing "END CALL" on the screen), the screen comes back on and everything is back to normal.
Can anyone offer any clues to solve this? Thanks in advance.

is the phone near something? maybe your ear?
is anything in front of aproximity sensor? (upper left, near speaker)
DN41

Nope... I use a BT headset since I got it (this only started happening 2 days ago, and I've used this device for over a month now).
It also happens everywhere (in my room, outside in the street, etc).
Very puzzling... I am thinking of doing a hard reset, but want to see if anyone has had this happen before...

Does it happen when you don't use the headset?

Yes indeed, I had already checked that and ruled out that the headset was causing the issue.

have you recently installed a "screen protector" ? This happened to mine as i hadn't quite got the holes lined up for the proximity sensors.
thanks,
scater1983

This happened to me as well today. Had the phone for 3 months now and can't say I've noticed it before. I do have a screen protector which also covers the proximity sensor (no holes in that area), but this was like a month ago and I have had no problem accessing the screen during calls until today. I have made a couple of calls after the one I mentioned but didn't remember to check if the problem was still there. Will try to see on the next one

ive been able to just press a face button to bring the screen back up. of course mine turns off when i put it near my ear thats intended. i had an issue where the touchscreen would not work at all durung a call. the screen would be on but only the physical buttons could do anything. a hard reset fixed that

Yeap, coincidentally, I just installed a screen protector and a protective case (darn). I will try this without the case and report back.
Thank you !

Problem solved ..
Been trawling these forums for hours for a registry edit to fix screen blank when making a phone call - LOL - who would have thought it was the cheap plastic case I whacked on the other day!

Screen stays off throughout the call.

Hey friends,
I am facing this problem while making calls that as soon as I press call button or receive button(while taking call) the screen turns off n stay that way till the call ends.
I have tried pressing all hardware buttons,even moved the dvp awayfrom me n into direct light but to no avial.though it did turn on once or twice out of twenty times.
Did anyone else experience this? Any suggestions are welcome..
Sent from my HD7 T9292 using Board Express

Do you have a screen protector or case that is obscuring the light sensor or proximity sensor? My first guess is that something is obscuring one or both, because during a call the screen being off is a feature.

Arcarsenal said:
Do you have a screen protector or case that is obscuring the light sensor or proximity sensor? My first guess is that something is obscuring one or both, because during a call the screen being off is a feature.
Click to expand...
Click to collapse
i know about this feature n still have that plastic skin on the screen i'll remove it n check again don't think it d block light but then wats the harm?

screen stays black/off during call
The screen stays black during a call and this happens ramdomly. I have a dell venue pro a t mobile phone but it is a pre release so it works on att 3g and all. I have switched the sd card with no improvement. I have ordered a transender 32 gb sd that I haven't received yet. The firmware version 2250.1400.7004.025 hardware is 112.576.2.0 radio soft 2.2.50.14 radio hard 8250. I have been unable to get any of the hardware keys to hang up the phone which if I get voicemail or something means I have to power the phone down to get the dang thing to hang up. Sometimes it works fine but I cant find a commonality software or hardware that causes this. It happens right out of the box so even after a software reset it can happen. Is there any solution for this issue?
I can't understand why the button on top doesn't hang it up.
PS I got this phone for free and I got ripped off LOL

wow just got a replacement phone today and im having this problem, As soon as I go to make a call the screen goes black and cant do anything on screen during the call, so i cant enter my password when checking voicemail

I think it's related to the proximity sensor. When you put the phone close to your head, the screen switches off. When you move it away, it will switch on - most of the time .
If it stays black, have you tried tapping the power button on the top of the phone? It switches the screen on without disconnecting your call.

A coworker got a replacement the other day(they send a refurb) phone and it had the same problem. Had to go through Twitter to get Dell to send him a new retail phone since they had send him 3 refurbs prior and they all had different issues.

This is just a general statement regarding phone proximity sensors. I have had multiple phones made by different manufactures that experience this to some degree (including the Venue Pro). One thing that I have noticed is that if the phone goes from your face directly into a bright light (outside is most common) it will keep the screen shut off but if the sensor is somewhat shaded it will resume normal function.

I got the same problem too and while it may be a proximity sensor problem, it is not controllable on the user's end. Unless the phone call disconnects magically, a battery pull is necessary.
I'm gonna be on my third one soon and I hope that i won't face the same problem.
magicsquid said:
I think it's related to the proximity sensor. When you put the phone close to your head, the screen switches off. When you move it away, it will switch on - most of the time .
If it stays black, have you tried tapping the power button on the top of the phone? It switches the screen on without disconnecting your call.
Click to expand...
Click to collapse

Yes i recently got a new refurbed phone and this problem has arised. Complained to Dell and they are going to send me a Brand new DVP. I see a lot of people having this same issue with the refurbs. Currently Dell is out of new DVP due to them upgraing the firmware, so I have to deal with a broke phone till the end of August. Talk about a dissatisfied customer. Im thinking about selling this brand new unit when I get it, hopefully Toshiba has their device out by then

This is a Proximity Sensor issue. You can fix it though in the EM app. You can adjust the sensor readings and the phone will function like normal. Let me know if you need the values or a step by step!

theusername said:
This is a Proximity Sensor issue. You can fix it though in the EM app. You can adjust the sensor readings and the phone will function like normal. Let me know if you need the values or a step by step!
Click to expand...
Click to collapse
please explain because im getting frustrated

theusername said:
This is a Proximity Sensor issue. You can fix it though in the EM app. You can adjust the sensor readings and the phone will function like normal. Let me know if you need the values or a step by step!
Click to expand...
Click to collapse
A step by step would be awesome. I like being able to see the screen during a call.

1) Get the EM app, if you dont have it dial ##634# into the dialer
2) Get into the advanced menu by double tapping the black area and typing in "qwertyuiop"
3) Select "RD test", now enter *#6336# in the box that pops up.
4) Select "Sensors", and the "Proximity Sensor Config"
5) Set the following to these:
LED strength - 1
Diode select - 2
Pulse Count - 43
6) Hit set and then you are good to go!
I have noticed that one of my DVP's needs to have this put in again everytime I reboot the phone, the other saves it. Just an FYI for ya!

I get to step 3 and when i clock on RD test, I am prompted with a white box with blue trim and an X at the top right. can you advise on how to proceed?

Oh yeah, Im sorry I forgot that part. Enter *#6336# as the password.

When I dial *#634# it says thic code is not supported.
What does that mean?
I put in a different number combo before and it put me in the EM screen

937dytboi said:
When I dial *#634# it says thic code is not supported.
What does that mean?
I put in a different number combo before and it put me in the EM screen
Click to expand...
Click to collapse
Try ##634#, Im made a typo there and put a * the first time.

did the steps and it didnt work for me am i doing something wrong

937dytboi said:
did the steps and it didnt work for me am i doing something wrong
Click to expand...
Click to collapse
I dont know, you could just have a defective phone. I know thats hard to believe that from Dell.....

Replaced screen/digitizer, screen goes dark when making a call & earpiece is silent

Replaced screen/digitizer, screen goes dark when making a call & earpiece is silent
So as the title says, I cracked my digitizer 2 weeks ago on vacation and finally got around to replacing it. Having done so, everything works great, all touches register, wifi/lte/texting, no problem. Had to make a phone call today and came upon the issue that the screen goes black and nothing will bring it back. My microphone works but my earpiece (speaker) does not. Once the other party hangs up, hitting the power button brings the screen up like it was sleeping.
As I've gathered from other threads, I'm going to have to tear it down again and make sure the proximity sensor is properly set up and check my cable connections for the earpiece.
Is there anything I should look for specifically while I'm back in there? Thanks all - I've only had it for a month and haven't had time to install a recovery...although I think I rooted it. Don't even remember! But first things first.

Weird Proximity Sensor Problem

Hello XDA,
I have a weird problem going on with my Note 3. I had an issue where my screen would not shut off during calls so I immediately figured I'd test the proximity sensor with some debugging app and also the built-in service menu. I went ahead and did that and noticed it was sort of working but one of the values (the main one that ranges from 0.0 to 8.0) stayed at 0.0 and didn't change. I did some research and used an app that I believe recalibrated it and it began to work perfectly… EXCEPT, when the screen goes off during a call and SHOULD be locked from touch events I can still touch the screen and it is responsive, meaning even thought the screen is black I can end the call, mute it etc granted I touch the right area seeing as I can't see anything. Another thing that's going on that leads me to believe this is some sort of software bug is, when the screen is turned off due to the takeover setting, when I press the home button to turn it back on, it turns back on BUT the front app is lowered and i am brought to the home screen as if the screen was on and I hit it. Weird huh?
Any help would be appreciated…
Verizon Note 3 running on T-Mobile and CM13

[QUESTION] S8 display randomly lights on and vibrates during call

Hi, anyone have issues with galaxy s8 when making/receiving calls ? My S8 was pre-ordered and on the first day of usage im faced with this issue, when making call or receiving phone randomly lights on display (once) and genlty randomly vibrates (as you press home button or nav button), then im take away phone from ear and put it back to ear display turns off, sometimes it keep turned off as normaly but sometimes it lights on again and vibrates, so i have to do previous steps or if ignore that issue than display turns off after some time and when im take away phone from ear to end call phone is locked and display won't light up until press lock button. Also im noticed that when im lock phone or even take it in hand (fingers touches both curved sides of display) phone also gently vibrates and turns from AOD to lock screen, this issue is also randomly. Some times AOD screen suddenly goes bright and than fades like it should be. After two weeks of chatting with samsung and store support im was send it to "service", they tested phone and after 10 days im received phone with status "no problems detected, software reflashed" but issues still not gone. And im can't replace it with new one because store refuses to replace it and says that they don't replace devices with software issues. Now im stuck and don't know what to do.
P.S. in *#0*# menu proximity sensor ADC values randomly keep changing even if nothing is in front of sensor, values are between 79-125 and when completely put finger on sensor values is 16368

Same issue here. Not sure why.

same for me too, international dual sim version s8

I have little bit different issue related to light sensor. My phone doesn't turn off the screen and locks in a pocket or if I close light screen by hands.
Sent from my SM-G950F using XDA Free mobile app

I have the same issue (also the oversensitive home button issue too).

I have a similar issue. But my screen never lights up. Neither during a call or when on the desk, for example. But during calls it sometimes vibrates as if I hard pressed the home button even though the screen is still off and I haven't pressed anything with my face, nor have I received any notifications. It doesn't seem to happen once every minute either (some phones notify you of every passing mine during a call).
It's not a big deal for me, just kind of curiously annoying.
Sent from my SM-G950F using Tapatalk

Check in settings on ambient display, pocket mode, etc. Or maybe a cache wipe and reboot will solve.
Like Settings-Display-Screen Mode
-Keep screen turned on/off

Thanks to Samsung and Consumer Rights Protection Centre, together we forced store to replace phone. It was a factory deffect, so anyone who has similar problem im advice to replace phone.