In call screen problem after JB .. i think.. - LG Optimus 4X HD

Hello,
when i call, the screen became black because of proximity sensor. when i took of the phone from my ears.... the screen don't turn on. if i puh the sensor with my fingers.. many and many times sometime it turn on..
i've a protector on screen but isn't on the sensor..

gattobau said:
Hello,
when i call, the screen became black because of proximity sensor. when i took of the phone from my ears.... the screen don't turn on. if i puh the sensor with my fingers.. many and many times sometime it turn on..
i've a protector on screen but isn't on the sensor..
Click to expand...
Click to collapse
Yea this happens to me too. I just use Hardware Disabler to stop the proximity driver. So the screen never turns off in a call until the screen time out. And you can turn it back on by pressing the power button. Keep in mind though, that app makes the phone laggy...it's annoying at times, but less annoying then waiting on people to hang up or leaving them a long voicemail when they don't pick up

Turn on the proximity sensor
The proximity sensor on V20a is disabled by default. you can enable it by going into the secret menu and your problem will be solved.
Dial 3845#*880# ---->Device Test ---->All Auto Test Menu-Full --->ALC/Proximity Test --->Enable the proximity sensor here
Done

mahendrabiradar said:
The proximity sensor on V20a is disabled by default. you can enable it by going into the secret menu and your problem will be solved.
Dial 3845#*880# ---->Device Test ---->All Auto Test Menu-Full --->ALC/Proximity Test --->Enable the proximity sensor here
Done
Click to expand...
Click to collapse
Omg thank you!! lol i was doing it the hard way haha

let's try! thanks

Strange. It works properly in my case for JB. I never activated it in hidden menu. Anyways thanks for the info.

ynkamat said:
Strange. It works properly in my case for JB. I never activated it in hidden menu. Anyways thanks for the info.
Click to expand...
Click to collapse
Same ! and indeed really strange

i've had the same problem. it sometimes happens, sometimes doesn't. no change after i enabled it in secret menu, still unreliable.

Related

Proximity sensor issue - can't end calls when screen doesn't wake!

Ever since my 4x HD was new I've noticed a problem, but it's getting so annoying now I finally thought I should do something about it, and I've contacted LG with a view to sending it off for repair:
When I remove the phone from my ear the proximity sensor usually fails to wake the screen back up, meaning I have no controls to end the call with. Occasionally swiping my finger over the sensors at the top of the screen wake it up, but mostly it takes several attempts, and presses of the screen lock button.
SO annoying when you are leaving someone a voicemail and it's still recording, all they hear at the end of the message is the muffled swipe of a finger and me muttering and swearing at the phone as it carries on recording for another 30 seconds or so!!
Anyone else have this issue??
Ben-B said:
Ever since my 4x HD was new I've noticed a problem, but it's getting so annoying now I finally thought I should do something about it, and I've contacted LG with a view to sending it off for repair:
When I remove the phone from my ear the proximity sensor usually fails to wake the screen back up, meaning I have no controls to end the call with. Occasionally swiping my finger over the sensors at the top of the screen wake it up, but mostly it takes several attempts, and presses of the screen lock button.
SO annoying when you are leaving someone a voicemail and it's still recording, all they hear at the end of the message is the muffled swipe of a finger and me muttering and swearing at the phone as it carries on recording for another 30 seconds or so!!
Anyone else have this issue??
Click to expand...
Click to collapse
Mine doesn't awake in the end of calls too... but I thought it was normal
We have an option where we can use "Power button" to turn off calls...
I didn't knew that the proximity sensor was suppose to wake up the disply...
Hi Rudeas,
Glad it's not just me!
Where is the option to use the power button to end calls?
Ben-B said:
Hi Rudeas,
Glad it's not just me!
Where is the option to use the power button to end calls?
Click to expand...
Click to collapse
Settings/Accessibility/Power button ends call :good:
you can set power cut a call
Sent from my LG-P880 using xda premium
Maybe a really daft question, but I presume you haven't put a screen protector on that covers the sensor? Stone of the cheap protectors do and that would stop it working properly.
Good thinking, but no, I don't have a.screen protector or anything over It.
To test and eventually to calibrate the proximity sensor, you can use hidden menu (dial 3845#*880#) -> Device Test -> All Auto Test Menu Full -> ALC / Proximity Test.
You can even test the "auto brightness mode" (to test also the light sensor) and "enable proximity wakeLock" (to simulate a call).
To test the sensor just put a finger near the sensor.
There is also a "Calibration" feature to calibrate the sensor if needed.
italianquadcore said:
To test and eventually to calibrate the proximity sensor, you can use hidden menu (dial 3845#*880#) -> Device Test -> All Auto Test Menu Full -> ALC / Proximity Test.
You can even test the "auto brightness mode" (to test also the light sensor) and "enable proximity wakeLock" (to simulate a call).
To test the sensor just put a finger near the sensor.
There is also a "Calibration" feature to calibrate the sensor if needed.
Click to expand...
Click to collapse
Wow italianquadcore! That is amazing! Firstly I could see by putting my finger over the sensor how poorly it was working. Often it wouldn't notice I had taken my finger away- then I pressed calibrate, and now it notices instantly, every time!!
Thanks loads, I'm assuming it's fixed now!
Ben-B said:
Wow italianquadcore! That is amazing! Firstly I could see by putting my finger over the sensor how poorly it was working. Often it wouldn't notice I had taken my finger away- then I pressed calibrate, and now it notices instantly, every time!!
Thanks loads, I'm assuming it's fixed now!
Click to expand...
Click to collapse
Italianquadcore is a lifesaver, right?
Made possible by my sexy LG Optimus 4X HD (P880)
Solved
SimonTS said:
Maybe a really daft question, but I presume you haven't put a screen protector on that covers the sensor? Stone of the cheap protectors do and that would stop it working properly.
Click to expand...
Click to collapse
Thanx a lot, yah it was a screen protector giving trouble to sensor.
Hi everyone.
I've just bought myself P880 as well. But had the same problem as author. However, the fix to calibrate via hidden menu didn't help at all. My sensor doesn't react at all, however, when I am using a hardware test it shows sensor is present.
Do you think there is something wrong with sensor itself, or there might be some android might have failed to initialize driver?
Thanks in advance!
Mine wasn't fixed by the calibration for long. It soon got worse again, I actually damaged my headphone socket (using a really big headphone plug through an 3.5mm adapter, then accidentally knocking it) and ended up buying a new part from etradesupply.com for about £17. The headphone socket is the same component that contains the proximity sensor, so replacing that fixed it.
I had phoned LG, but as I had bought my p880 from german amazon they said they wouldn't have covered me even if it had been a warranty problem (So much for Europe being somehow unified!) so I had to risk taking my phone apart myself!
italianquadcore said:
To test and eventually to calibrate the proximity sensor, you can use hidden menu (dial 3845#*880#) -> Device Test -> All Auto Test Menu Full -> ALC / Proximity Test.
You can even test the "auto brightness mode" (to test also the light sensor) and "enable proximity wakeLock" (to simulate a call).
To test the sensor just put a finger near the sensor.
There is also a "Calibration" feature to calibrate the sensor if needed.
Click to expand...
Click to collapse
Thanks mate! I was having the same problem.
italianquadcore said:
To test and eventually to calibrate the proximity sensor, you can use hidden menu (dial 3845#*880#) -> Device Test -> All Auto Test Menu Full -> ALC / Proximity Test.
You can even test the "auto brightness mode" (to test also the light sensor) and "enable proximity wakeLock" (to simulate a call).
To test the sensor just put a finger near the sensor.
There is also a "Calibration" feature to calibrate the sensor if needed.
Click to expand...
Click to collapse
thank you man at last phone call bug is gone :good::good::good::good::good::good::good::laugh:
zizoradwan said:
thank you man at last phone call bug is gone :good::good::good::good::good::good::good::laugh:
Click to expand...
Click to collapse
Using the hiddenmenu gives me an app crash on v20a when hitting device test, Any fix for that?
arnookie said:
Using the hiddenmenu gives me an app crash on v20a when hitting device test, Any fix for that?
Click to expand...
Click to collapse
It works with V20A without any problems (just tested). Please check if you disabled something, regarding hidden menu or some other related items, in app management.
Thank you italianquadcore!
That solved my issue as well...
Is there such a code for CM?
ArmadiloDS said:
Is there such a code for CM?
Click to expand...
Click to collapse
i have a same problem. I dont have that menu on CM, does anyone know the solution for CM?

[Q] Screen stays off during call no matter what I do!

When I am in a call, putting the phone to my face turns the screen off using the proximity sensor. However, removing the phone from my face does not turn the screen back on. Nothing turns it back on even if I push all the buttons or hold them or do anything unless the other person hangs up. I cannot remember when it started....before or after the recent update.....but it did start very recently. Any ideas? If I turn off the proximity sensor during calls it works fine by locking and unlocking the screen with the buttons.
MNDZA said:
When I am in a call, putting the phone to my face turns the screen off using the proximity sensor. However, removing the phone from my face does not turn the screen back on. Nothing turns it back on even if I push all the buttons or hold them or do anything unless the other person hangs up. I cannot remember when it started....before or after the recent update.....but it did start very recently. Any ideas? If I turn off the proximity sensor during calls it works fine by locking and unlocking the screen with the buttons.
Click to expand...
Click to collapse
Is anything covering the front facing camera, or light sensor? Like a case, bad screen protector, etc....
Does your front facing camera work just fine as a camera?
How about air gestures? Do they work?
I'm asking these things because it seems your proximity sensors aren't working properly. Your phone thinks it's next to your head all the time, so it's not waking the screen until the other person ends call. We need to find out which one is acting up and why.
The front camera works, but in my office it seems VERY sensitive to light. The lights are glaring heavily. I never use the front camera so I don't know if that's normally how it was. Air gestures work when the screen is on (swiping left and right to view my photos), but the quick glance won't work when the phone is locked. The weird thing is that quick glance works when I do the "try it" tutorial only.
440bro said:
Is anything covering the front facing camera, or light sensor? Like a case, bad screen protector, etc....
Does your front facing camera work just fine as a camera?
How about air gestures? Do they work?
I'm asking these things because it seems your proximity sensors aren't working properly. Your phone thinks it's next to your head all the time, so it's not waking the screen until the other person ends call. We need to find out which one is acting up and why.
Click to expand...
Click to collapse
Ok now it seems quick glance DOES work when the phone is off....I just couldn't do it correctly.
Main problem still exists though.
What rom are you using
Sent from my SAMSUNG-SM-N900A using Tapatalk
My note 2 started like this also. I don't know what's wrong with it.
Sent from iNew V3 using Tapatalk
My phone is completely stock and not rooted.
MNDZA said:
My phone is completely stock and not rooted.
Click to expand...
Click to collapse
then i would contact att and get a warrenty replacement
jerrycoffman45 said:
then i would contact att and get a warrenty replacement
Click to expand...
Click to collapse
I was thinking that, but I'm tempted on resetting my phone and seeing if that helps. The problem is that I would lose all my app data and I'd hate to deal with that.
MNDZA said:
I was thinking that, but I'm tempted on resetting my phone and seeing if that helps. The problem is that I would lose all my app data and I'd hate to deal with that.
Click to expand...
Click to collapse
att will ask you to do that when you call
MNDZA said:
When I am in a call, putting the phone to my face turns the screen off using the proximity sensor. However, removing the phone from my face does not turn the screen back on. Nothing turns it back on even if I push all the buttons or hold them or do anything unless the other person hangs up. I cannot remember when it started....before or after the recent update.....but it did start very recently. Any ideas? If I turn off the proximity sensor during calls it works fine by locking and unlocking the screen with the buttons.
Click to expand...
Click to collapse
Unfortunately this sounds like a bad proximity sensor. This can be verified by testing the sensor by dialing *#0*#
I had this happen to my last Note 3. The only difference was I could turn the screen back on with the home button.
done12many2 said:
Unfortunately this sounds like a bad proximity sensor. This can be verified by testing the sensor by dialing *#0*#
I had this happen to my last Note 3. The only difference was I could turn the screen back on with the home button.
Click to expand...
Click to collapse
I tried that *#0*# test and I can activate the proximity sensor, but it seems to stay on after that.
This is a known issue with our phone. I had this issue myself. Plenty of times. Just call ATT and ask for a replacement.
Yeah I just found this:
http://forums.androidcentral.com/sa...-3-proximity-sensor-issue-during-calls-5.html
It's not a software issue use canned air and blow by the speaker and the headphone jack als o press on the back of the phone . This has happened to me
Sent from my SAMSUNG-SM-N900A using xda app-developers app
i stumbled upon this thread and took my phone apart and sure enough there was lint in it. in the dial pad using the *#0*# method, when i covered the sensor the screen would light green, vibrate, and stay that way after i moved my hand away. i cleaned it and everything is perfect!!!
Try this
https://www.youtube.com/watch?v=fls4NIRJ1IQ&feature=youtube_gdata_player
Sent from my Note 3 SM-N900A rooted by Designgears

Always on Display dims, but doesn't turn off in pocket

did anyone notice the Always on Display dims, but doesn't turn off when turned face-down or put in your pocket?
Yes and looks as though that is how it will always be now. I read an article about how they did proximity sensor on this phone. The process sensor causes a white light to blink when it's on so it is only used when on a call.
Wait ... So the ALWAYS ON display is on ALWAYS and that's a problem??? Hmmmm
Try Gravity Screen.
vintagerock said:
Yes and looks as though that is how it will always be now. I read an article about how they did proximity sensor on this phone. The process sensor causes a white light to blink when it's on so it is only used when on a call.
Click to expand...
Click to collapse
This is bull s h i t! WTH!!
Yea, I was looking into this. The "behind the glass" proximity sensor isonly on when in calls etc. You'l see it's on by the flashing white dot near the battery icon when in a call etc. All other times it seems it's off. So AOD is always on as it doesn't use the proximity sensor any longer.
Really stupid on their part.
the_scotsman said:
Yea, I was looking into this. The "behind the glass" proximity sensor isonly on when in calls etc. You'l see it's on by the flashing white dot near the battery icon when in a call etc. All other times it seems it's off. So AOD is always on as it doesn't use the proximity sensor any longer.
Really stupid on their part.
Click to expand...
Click to collapse
I agree, Also I used the lift to call when in a persons sms thread in the stock messages app, now that does not work either because of this.... I can't find an option to turn it on. Never had an option on my prior galaxys as it just worked...
jstodda said:
Wait ... So the ALWAYS ON display is on ALWAYS and that's a problem??? Hmmmm
Click to expand...
Click to collapse
Yes because I want it always on WHEN I CAN SEE IT, not when it's in my pocket.
---------- Post added at 09:04 AM ---------- Previous post was at 09:03 AM ----------
Tel864 said:
Try Gravity Screen.
Click to expand...
Click to collapse
Have you tried it for this case?
This sucks... Only way I understand this it's that they decided that AOD and proximity sensor always on consume almost the same amount of battery.
I cover the proximity sensor on s9+ and turn off AOD in 30sec and then i try that on my s10+ and nothing happened and for now i turn it off because is all the time active.
Screen On In Pocket
My phone doesn't arrive until tomorrow so I have no report but, I am wondering if anyone has noticed accidental screen on in pocket or seen a setting to prevent. Older Galaxy phones had a setting to prevent this which relied on proximity sensor.
bsam55 said:
My phone doesn't arrive until tomorrow so I have no report but, I am wondering if anyone has noticed accidental screen on in pocket or seen a setting to prevent. Older Galaxy phones had a setting to prevent this which relied on proximity sensor.
Click to expand...
Click to collapse
Accidental touch is still an option on the S10, i have mine enabled but it never turns AOD off. It doesn't work like before. I'm hoping they can fix this as its getting on my nerves that I have to keep disabling AOD when leaving in my bag else it'll stay on wasting battery for nothing.
Sent from my [device_name] using XDA-Developers Legacy app
So basically if I use a wallet folio case then then AOD doesnt turn off when I close the cover?
What would be causing this?
Sent from my SM-G975U using Tapatalk
Limeybastard said:
So basically if I use a wallet folio case then then AOD doesnt turn off when I close the cover?
What would be causing this?
Click to expand...
Click to collapse
Probably need to be connected with proximity sensor but this time is under the screen who knows.
I just ran the Samsung inbuilt test *#0#* , there is no test under Sensors for the proximity sensor for this model, if I'm not mistaken other Galaxy devices did have this specific sub test under Sensors test menu
Sent from my SM-G975U using Tapatalk

Serious practical problem lock screen

Strange thing is happening recent to me...
Namely, while using headphones while talking on the phone, the unit gets unlocked while in pocket and problems arise with spontaneous keys getting activated.
If even cannot be explicitly locked by pressing the power button.
Have not found a solution to this problem, and it's strange why the proximity sensor does not work in pocket.
Cannot remember whether this was previously, or is it since last ROM upgrade.
Anyone having same problem?
tomsag said:
Strange thing is happening recent to me...
Namely, while using headphones while talking on the phone, the unit gets unlocked while in pocket and problems arise with spontaneous keys getting activated.
If even cannot be explicitly locked by pressing the power button.
Have not found a solution to this problem, and it's strange why the proximity sensor does not work in pocket.
Cannot remember whether this was previously, or is it since last ROM upgrade.
Anyone having same problem?
Click to expand...
Click to collapse
Yep I have the same thing... Today my pocket took 9599295 pictures and movies.. also when I'm a bit sweat my pocket dial random numbers. I've noticed that when screen is touched and disnt recognize fingerprint then whole lockscreen shows up and its easy way to random open dial or camera... Its rly anoying, because I dont want to hide phone screen outside of the skin. (Its easier to break screen if I hit something with my leg.)
Dunno why it doesnt use proximity sensor to recognize that phone is in the pocket like every other brand... :/
Do you have the double tap to wake up activated?
I had this problem a while ago and it was the double tap that played all kinds of tricks calling emergency and taking pictures in my pocket! Disable double tap to wake up screen and the problem goes away.
Disable the fingerprint icon on when the screen if off.
Gokh said:
Disable the fingerprint icon on when the screen if off.
Click to expand...
Click to collapse
Tried everything but the problem is eventually still there. Actually I've found a bug, namely the display will wake up once touched several times near the center of the fingerprint reader. Try it yourself.
Not nice - cannot avoid to happen it sometimes even if all options are disabled.
tomsag said:
Tried everything but the problem is eventually still there. Actually I've found a bug, namely the display will wake up once touched several times near the center of the fingerprint reader. Try it yourself.
Not nice - cannot avoid to happen it sometimes even if all options are disabled.
Click to expand...
Click to collapse
I didn't have this problem. If I try now and touch the part with the scanner, doesn’t have to be just the centre of the scanner, rapidly around ten times the lock screen will turn on, but nothing happens when I touch the shortcuts. Perhaps they are disabled, so the only thing that happens if the scanner is touched again is that the numpad to unlock with pin appears.
This is not good as it may severely affect battery life if it happens a lot. This clearly must be a bug!
gerhard_wa said:
I didn't have this problem. If I try now and touch the part with the scanner, doesn’t have to be just the centre of the scanner, rapidly around ten times the lock screen will turn on, but nothing happens when I touch the shortcuts. Perhaps they are disabled, so the only thing that happens if the scanner is touched again is that the numpad to unlock with pin appears.
This is not good as it may severely affect battery life if it happens a lot. This clearly must be a bug!
Click to expand...
Click to collapse
Even worse, since it is happening all the time while on a call via BT and my phone is in the pocket. I am now thinking about to switch over to my old MI8...
Cannot understand why the keyboard is not disabled in the pocket. Seems so easy to do it but it's as it seems on.
tomsag said:
Even worse, since it is happening all the time while on a call via BT and my phone is in the pocket. I am now thinking about to switch over to my old MI8...
Cannot understand why the keyboard is not disabled in the pocket. Seems so easy to do it but it's as it seems on.
Click to expand...
Click to collapse
My only solution was to buy a flip case. At first, I disabled the fingerprint reader by removing all fingerprints and setting up face recognition, but this didn’t fix the problem you are talking about. I don’t really like flip cases, but the Nillkin QIN Smartcase is rather good.
So now I ‘m eagerly awaiting a fix from Xiaomi so I can strip the Mi9 again!
Gokh said:
Disable the fingerprint icon on when the screen if off.
Click to expand...
Click to collapse
Where can the fingerprint icon be disabled? Thank's.
j4dotcc said:
Where can the fingerprint icon be disabled? Thank's.
Click to expand...
Click to collapse
Disabling the fingerprint icon has no effect on the problem we are talking about here. The only way to make the problem go away is to remove all the stored fingerprints thus disabling the use of fingerprints all together. This will shut off the fingerprint sensor doing away with this problem in a crude way.
If you really are looking for a setting, please use the search function at the top of the settings.
gerhard_wa said:
Disabling the fingerprint icon has no effect on the problem we are talking about here. The only way to make the problem go away is to remove all the stored fingerprints thus disabling the use of fingerprints all together. This will shut off the fingerprint sensor doing away with this problem in a crude way.
If you really are looking for a setting, please use the search function at the top of the settings.
Click to expand...
Click to collapse
Thanks for the prompt reply. I don't have the problem and just wanted to know where I can disable the fingerprint icon. Thanks again.
New uppdate out that include Pocket Mode. MIUI-V10.2.27.0PFAEUXM EEA version.

Face unlock not working when screen off

Anyone else having this issue? I have to either tap phone or tap power button to get screen to turn on, then face unlock will work. Previously I would be able to just hold it up to my face with screen off and it would just unlock. After most recent update it no longer does this. Very frustrating.
Check maybe lift to wake phone is turned off in the settings.
cwburns32 said:
Anyone else having this issue? I have to either tap phone or tap power button to get screen to turn on, then face unlock will work. Previously I would be able to just hold it up to my face with screen off and it would just unlock. After most recent update it no longer does this. Very frustrating.
Click to expand...
Click to collapse
Mine was doing that too...along with auto brightness stuck and the proximity sensor wasn't turning the screen on and off during calls. As a last resort before sending it back (since I had to wipe it anyway) I tried the first android 11 beta (not 1.5). It almost completely fixed everything but the proximity sensor. Still had to occasionally tap the phone or power it on to face unlock though. Google replaced it because of the proximity sensor. The replacement phone is working fine on latest update of 10
redskykiter said:
Mine was doing that too...along with auto brightness stuck and the proximity sensor wasn't turning the screen on and off during calls. As a last resort before sending it back (since I had to wipe it anyway) I tried the first android 11 beta (not 1.5). It almost completely fixed everything but the proximity sensor. Still had to occasionally tap the phone or power it on to face unlock though. Google replaced it because of the proximity sensor. The replacement phone is working fine on latest update of 10
Click to expand...
Click to collapse
Good to know. Haven't wiped just yet, may do what you did there.
cwburns32 said:
Good to know. Haven't wiped just yet, may do what you did there.
Click to expand...
Click to collapse
I really didn't have ANY bugs that I found with beta 1....read 1.5 has some issues. Is your proximity sensor working? I used androsensor to confirm
edit I did wipe face data before erasing
redskykiter said:
I really didn't have ANY bugs that I found with beta 1....read 1.5 has some issues. Is your proximity sensor working? I used androsensor to confirm
Click to expand...
Click to collapse
My prox sensor is working fine. It just won't face unlock with screen off. Turned on lift to check phone and now screen wakes without me having to do anything but still, there was a time where I had that feature off and face unlock would unlock with screen off
cwburns32 said:
My prox sensor is working fine. It just won't face unlock with screen off. Turned on lift to check phone and now screen wakes without me having to do anything but still, there was a time where I had that feature off and face unlock would unlock with screen off
Click to expand...
Click to collapse
I never had lift to wake off. That sounds like a solution to me
redskykiter said:
I never had lift to wake off. That sounds like a solution to me
Click to expand...
Click to collapse
Yah maybe I am just imaging things idk hahah lift to wake works, along with various other setting so not a huge issue. Thanks

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