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Screen Off Issue while on phone

I am having a weird problem. I am on stock ATT with root. If i am talking to someone using my phone....if i put it on speaker and screen goes off...I cannot make the screen on back again. If i click power button the phone gets disconnected. its really irritating bug.
Also if i am using GPS while driving and If i get a call....after attending the call and I am not able to go back to navigation app. it shows me black screen.
These two things are annoying me like hell. Any help is appreciated...

maybe set display to never sleep? esp. while driving? will drain the battery faster, but in the car presumably you would have a charger available...

Are you using a screen protector or case thats covering the proximity sensor? Its one of the little spots in the upper left corner. Where most protectors have a cut out. Anyways, thats there to shut the screen off on the phone when you are on it so you dont accidentally hit any buttons. If its covered it wont allow you to turn the display on because it thinks its next to your face. Either that or maybe your sensor is bad.

dead backlight and possible backup solution

hello GS3'ers my brother has some gs3 problems
his gs3's back light appears to have died out. he can still use the phone just can't see what is going on, the sounds still work and everything. has anyone come across this before? i told him to hold a flashlight to the screen so he's able to backup his pictures and what not but the screen is really black. which is his main concern right now, because he wants save his things and then return the phone if he has to.
any help is much appreciated, thanks!

My understanding of the GS3 is that since it is an AMOLED screen, it does not have a backlight. Each individual pixel emits light. My guess would be an app is causing the problem, possibly one that alters screen brightness. I would start by pulling the battery and restart the phone. If you see a boot animation, your screen's not dead.
Sent from my SCH-I535 using xda premium

that makes sense because the flashlight thing didn't work. he restarts his phone and even the boot logo is happening during a pitch black screen but the sound could be heard. it's gotta be something more serious
Sent from my DROID X2 using Tapatalk 2

Bad Proximity Sensor?

Is anyone else having an issues when on a call to someone you take it away from your ear and look at your phone and the screen doesn't come back on. I have to hit the power button to make the screen wake up. I'm all stock (4.4.2) with unlocked bootloader. I m trying to see if this is a hardware problem where I need to RMA or software problem.

Mine works perfectly well. Are you sure you don't have anything that might be affecting the proximity sensor, like smudges or a screen protector?
Sent from my Nexus 5 using Tapatalk

No, I don't have any screen protector not any smudges. I saw similar issues on other phones and someone said to clear data and cache on the phone app so I don't know if that will work or not.

ProBird79 said:
Is anyone else having an issues when on a call to someone you take it away from your ear and look at your phone and the screen doesn't come back on. I have to hit the power button to make the screen wake up. I'm all stock (4.4.2) with unlocked bootloader. I m trying to see if this is a hardware problem where I need to RMA or software problem.
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What time out do you have your screen set to? Sounds like it's simply locking after the designated time.
I've noticed the screen turning on and off occasionally when talking. Almost like the sensor isn't sure if I'm holding it to my head or not but then I do hold it away from my face.

I have the same issue...
I can't hang a call because the screen simply don't turn on when I remove my phone from the ear.
In add at this issue, seems like the proximity sensor turn off the backlight screen only.
When I finish a call, I found the clock screen opened, in my case the settings screen of advanced clock widget...
It's really annoying...
Sent from my Nexus 5 using XDA Premium 4 mobile app

Do you guys have a screen protector applied by any chance? Everyone had this issue with the nexus 4 because the sensor is really sensitive and picks the protector up, not letting it turn the screen on. Try removing a section of the protector where the sensor sits, this will fix your issue.

Surprisingly, I don't have this problem
Team Nexus 5 sucks. Underpowered battery for a 5inch 1080p screen that is non-removable. Weak generic antenna that drops signal. Worst speaker of any device on the market. Cheap plastic build.

dalton8 said:
Do you guys have a screen protector applied by any chance? Everyone had this issue with the nexus 4 because the sensor is really sensitive and picks the protector up, not letting it turn the screen on. Try removing a section of the protector where the sensor sits, this will fix your issue.
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Click to collapse
My phone is naked... No screen protector, no cover...
Sent from my Nexus 5 using XDA Premium 4 mobile app

bblzd said:
What time out do you have your screen set to? Sounds like it's simply locking after the designated time.
I've noticed the screen turning on and off occasionally when talking. Almost like the sensor isn't sure if I'm holding it to my head or not but then I do hold it away from my face.
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I have it on 15 seconds. Shouldn't that feature be bypassed when a call is in progress so that the proximity sensor is usable. This is the first phone that I've had that has done this to me. On all others the proximity sensor stays live even after the predetermined sleep time.

After 15 seconds you're screen is simply turning off as you have set. Mine does so after 1 minute, which is my screen time out setting.
Sent from my Nexus 5 using Tapatalk

I have 30 minutes of inactivity...
The proximity sensor is broken...
Sent from my Nexus 5 using XDA Premium 4 mobile app

bblzd said:
After 15 seconds you're screen is simply turning off as you have set. Mine does so after 1 minute, which is my screen time out setting.
Sent from my Nexus 5 using Tapatalk
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During a call shouldn't the screen timeout be bypassed then go back to the default setting once the call has ended? That makes much more sense to me.

ProBird79 said:
During a call shouldn't the screen timeout be bypassed then go back to the default setting once the call has ended? That makes much more sense to me.
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This seems to be the built in functionality of the phone and not a bug. I can't really say if one way is better then the other but I just turn the screen off during calls now.

This is the bug...
really annoying

same problem
ProBird79 said:
Is anyone else having an issues when on a call to someone you take it away from your ear and look at your phone and the screen doesn't come back on. I have to hit the power button to make the screen wake up. I'm all stock (4.4.2) with unlocked bootloader. I m trying to see if this is a hardware problem where I need to RMA or software problem.
Click to expand...
Click to collapse
Same problem here do any one have solution for this..

Xperia Z3 screen flickering, help

I gave my Z3 a little bath in tap water in the sink. It was not submerged so this is more like a shower. I double checked and secure the ports. I don't even use the ports anyway because I have magnetic charging. I dried it and started using it. It was all fine until 5 mins later it just randomly turned off. Battery was good, tried using the power button and it wouldn't work. So I did the power button and volume + method and it fixed it. But the touch screen didn't work sometimes (randomly), there was a blinking red light before I booted it on, and there is rattling near the camera area when i shake it. I ran diagnostics and noticed that my screen was also flickering. Some of the tests used vibration as feedback and this made the flickering worse. Now the screen is struggling to stay lit. It turns on for 3 seconds and then it dies. You can only see parts of it too. I need help. This phone is unusable. I bought this phone (Sony Xperia Z3 D6603 black) from Worldwide Distributors on Amazon.com 3 months ago. I only took it into the water a few times. I don't think its water damage because I had the flaps secured unless Sony gave me a defective phone. I paid $700 for this and I'm not rich either. I was saving up. The phone has the standard 2 year warranty. Somebody please help. what should I do? Will Sony fix it or give me a new one?
UPDATE: Screen is dead. It still turns on and touch screen still works but cant see anything. It's like it lost signal . Kinda like how a tv loses signal. The tv still works but are no shows on.
IMPORTANT: I just found a little hole that shows part of the screen backlight. Its on the side but its more like a crack. I haven't drop this or anything. So this is possibly how the water got in. This is also Sony's fault. Will I get a new replacement or refund or repair or something?
Thanks for all your help.

afghanpure said:
I gave my Z3 a little bath in tap water in the sink. It was not submerged so this is more like a shower. I double checked and secure the ports. I don't even use the ports anyway because I have magnetic charging. I dried it and started using it. It was all fine until 5 mins later it just randomly turned off. Battery was good, tried using the power button and it wouldn't work. So I did the power button and volume + method and it fixed it. But the touch screen didn't work sometimes (randomly), there was a blinking red light before I booted it on, and there is rattling near the camera area when i shake it. I ran diagnostics and noticed that my screen was also flickering. Some of the tests used vibration as feedback and this made the flickering worse. Now the screen is struggling to stay lit. It turns on for 3 seconds and then it dies. You can only see parts of it too. I need help. This phone is unusable. I bought this phone (Sony Xperia Z3 D6603 black) from Worldwide Distributors on Amazon.com 3 months ago. I only took it into the water a few times. I don't think its water damage because I had the flaps secured unless Sony gave me a defective phone. I paid $700 for this and I'm not rich either. I was saving up. The phone has the standard 2 year warranty. Somebody please help. what should I do? Will Sony fix it or give me a new one?
UPDATE: Screen is dead. It still turns on and touch screen still works but cant see anything. It's like it lost signal . Kinda like how a tv loses signal. The tv still works but are no shows on.
IMPORTANT: I just found a little hole that shows part of the screen backlight. Its on the side but its more like a crack. I haven't drop this or anything. So this is possibly how the water got in. This is also Sony's fault. Will I get a new replacement or refund or repair or something?
Thanks for all your help.
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Click to collapse
Happened to me too! The screen is black but is showing the brightness and the touch works. It's totally weird!. i'm going to send the phone to SAT

Seems the lcd backlight is still working where the lcd screen is not;
not sure whether the warranty covers water damage or not...

Got around the same problem. happend in the water screen went black phone was still working. After a lot of reboots and resets it started to work for around 3 seconds then evantually the screen was staying, but is flashing now, looks like the flickering happens when the screen gets too much power. In light conditions it either flickers or is real dark.
What can I do to fix this? Or do I just contact Sony? I've also tried the pressure test and it is water resistant so it has to be something different.

If the screen is cracked they will charge you for the replacement for sure
Inviato dal mio D6603 utilizzando Tapatalk

Hi. I've noticed that my screen flickers when I put the brightness on maximum. Watching the behavior it makes me think that it happens all the time, but it's only noticeable the screen brightness is high. Tried to get it on film, but my camera does not seem to pick up the flickering.
I noticed this after a pool bath with my phone, but i don't know if it is related to that. I did not a chance to use maximum brightness before
I do not have any other issues though, just the flickering. Should i send it to repair? My phone is an 6633 Dual Sim Z3 (Brazilian, unbranded) with less then 3 months of usage.

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.
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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.
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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!
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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.