Ghost touches in pocket? [Proximity sensor issue] - Samsung Galaxy A50 Questions & Answers

Anyone think that perhaps the proximity sensor of this device doesn't work always?
After using my phone if I put it in my pocket without locking I expect that it will not register ghost/accidental touches but I don't think the phone handles that very well. Often when I pull out the phone I can see some random screen got opened.
Are others also facing this issue?

manish_bhaumik said:
Anyone think that perhaps the proximity sensor of this device doesn't work always?
After using my phone if I put it in my pocket without locking I expect that it will not register ghost/accidental touches but I don't think the phone handles that very well. Often when I pull out the phone I can see some random screen got opened.
Are others also facing this issue?
Click to expand...
Click to collapse
Not random screen opening but once i remove it out of my pocket i get a warning screen saying accidental touch protection is on or something.
Or sometimes a clock, the one on the lock screen where you just tap on it and it zooms in the clock.

Have you turned ON the Accidental Touch Protection? I initially had Ghost Touch problems during jogging but with the change of placement of the phone, i now dont have the problem. Make sure that the screen faces the pocket side not the thigh side. Most of the ghost touches happen while interaction with the thigh.
Sent from my SM-A505F using Tapatalk

Sukhi said:
Have you turned ON the Accidental Touch Protection? I initially had Ghost Touch problems during jogging but with the change of placement of the phone, i now dont have the problem. Make sure that the screen faces the pocket side not the thigh side. Most of the ghost touches happen while interaction with the thigh.
Click to expand...
Click to collapse
The setting was already on. Anyway I toggled it off and on again just in case. Making the phone face outwards in the pocket may work as a suggestion, but it still probably implies that the phone is not doing a good job in blocking these accidental touches. I also like the screen inwards in case I hit a table edge or something.
The other setting I did is to ensure the phone locks itself quickly after the screen goes off. Earlier I had it at a higher value and its possible the device was switching on to an unlocked state. This is working a little but in my old devices I recall I was able to pocket even if the screen was on and i didn't really have this issue.

Accidental Touch option don't working well as need it.
Sometimes working and sometimes don't but proximity sensor working like a charm
Think it's a software bug.
Working like on a wind

Related

No in-call curtain in TP2

Hi,
I'm using an original ROM for TP2 with Manilla 2.1.38158.2 (as shown in Settings | About).
AFAIK this version should include the "in-call curtain" functionality, on which the call buttons are locked during a call. However, I see no sign for this anywhere.
Does anyone have an idea how this feature can be turned on, or how do I add it?
The curtain is unnecessary. Your device as a proximity sensor that turns off your display when you hold you face it. You don't need the curtain to lock the buttons. When you move the device away from your face, you probably want to use the touch screen so it turns back on.
I usually talk using a Bluetooth headset while the device is kept in my bag or pocket. The proximity sensor should theoretically detect that the device is covered and keep the screen off, but it often fails to do so, allowing random buttons to get pressed.
S2U2 doesn't solve this either, as it keeps the device unlocked during phone calls. There's TouchLockPro, but I don't like the way it works.
Have you tried CSDEVCTRL? I recall it allows you to lock the device during and after a call.
Yes, I found it in one of the forums here a couple of weeks ago. For some reason it didn't keep the device locked during calls, though specifically configured to do so. I haven't looked deeper into that, since I thought that the supposedly built-in curtain would do.
BTW, a simple test shows that the proximity sensor is completely useless for this scenario. I put a small object on the sensor, locked the phone and turned it off. I then called it from another phone and answered using the Bluetooth headset. Although the screen was blocked with an object, it was completely unlocked and could be pressed. The proximity sensor turned the screen off only if a movement was detected towards the screen, and not when something was already blocking the screen.
I repeated this test several times with the phone in a bag. I locked it, called, answered using the Bluetooth headset and tried to press against it from outside the bag. In every single time on-screen buttons got pressed.
As a matter of fact, the TP2 is way worse than the original TP in this sense. In my previous TP I could answer a call using the headset, take out the phone (carefully so it won't hang up by a screen press), lock it again and put it back in the bag/pocket. Now with the TP2 the proximity sensor wakes up the device unexpectedly, so I can never keep it inside anything during a call.
There is a shareware Pocket Shield which provides a screen curtain. You may have a try for your TP2 at this link:
http://pocketshield.netserver01.com/download.htm
erezshermer said:
Hi,
I'm using an original ROM for TP2 with Manilla 2.1.38158.2 (as shown in Settings | About).
AFAIK this version should include the "in-call curtain" functionality, on which the call buttons are locked during a call. However, I see no sign for this anywhere.
Does anyone have an idea how this feature can be turned on, or how do I add it?
Click to expand...
Click to collapse
I tried installing the InCallCurtain from my Touch Pro ROM and it does not work with the TP2. It is a different dialer so the calls for the curtain may not be in there.
My phone has no problem turning itself off when it gets near my face. Why would you want a call curtain?
Kloc said:
My phone has no problem turning itself off when it gets near my face. Why would you want a call curtain?
Click to expand...
Click to collapse
Did you read the thread ?!
Thanks Angler, I just tested Pocket Shield. I must say I like the progress of this program since the last time I tried it.
I won't use it as a general lock utility because of a severe issue: for some reason my Bluetooth headset loses the ability to answer calls while it's locked. I click the headset button, the ring sound moves to the headset, and the call is not picked up.
I'm thinking about only using its curtain feature - use only the protection during phone calls without locking. This seems to work, however PocketShield locks my device whenever it powers on and I can't find a way to cancel that without completely turning it off. Any ideas here?
(edit: removed double post)
erezshermer said:
BTW, a simple test shows that the proximity sensor is completely useless for this scenario.
Click to expand...
Click to collapse
Prox sensors come in different types. They aren't all configured to turn off "when covered" by just anything. Since the primary purpose is to save screen power when held against your face, it may well be technically designed to detect things that can conduct electricity, like you. If you're curious about it, as I am, next time you test it, cover the prox sensor with your thumb.
If that doesn't work, I recommend on second test. Just because there is a prox sensor doesn't mean that HTC is using only that for turning off the screen. In order to avoid accidentally turning it off while you're trying to use it, which would be annoying, they might be using the accelerometer to detect whether it's being held like a phone or not, and not turning it off if it isn't. Test two is to hold it in a position at an angle as if you would if you were talking on it, and hold your thumb over the prox sensor.
I don't have my TP2 yet, that's why I haven't tried it myself. If you're already on to your current solution and don't want to I understand, but if you do, I'd be curious as to your results.
fortunz said:
Prox sensors come in different types. They aren't all configured to turn off "when covered" by just anything. Since the primary purpose is to save screen power when held against your face, it may well be technically designed to detect things that can conduct electricity, like you. If you're curious about it, as I am, next time you test it, cover the prox sensor with your thumb.
If that doesn't work, I recommend on second test. Just because there is a prox sensor doesn't mean that HTC is using only that for turning off the screen. In order to avoid accidentally turning it off while you're trying to use it, which would be annoying, they might be using the accelerometer to detect whether it's being held like a phone or not, and not turning it off if it isn't. Test two is to hold it in a position at an angle as if you would if you were talking on it, and hold your thumb over the prox sensor.
Click to expand...
Click to collapse
Tested that with some objects and with my hand. Same results. Even with the phone being held vertically like I'm talking with it, the screen won't turn off if it was covered before the call. When removing the hand/object from the proximity sensor and covering it again - the screen turns off immediately.
Maybe this is not a limitation of the sensor but a simple programmed behavior. If so, perhaps it can be patched... <evil grin>
Update. Under HKEY_LOCAL_MACHINE\Software\HTC\Proximity there are 3 keys: ProximityDetectStatus, ProximitySensorOn, UnexpectedWakeup.
The first key is updated live by whatever the sensor detects. I now know for sure that the sensor continously knows if there's something on top - the dialer behavior is programmed.
I'm not sure what the other keys do. ProximitySensorOn was set to 0 on my registry and now when it's 1 I see no difference. Gotta go, will continue with that later.
Switching the Proximity Sensor off...?!
erezshermer said:
Update. Under HKEY_LOCAL_MACHINE\Software\HTC\Proximity there are 3 keys: ProximityDetectStatus, ProximitySensorOn, UnexpectedWakeup.
The first key is updated live by whatever the sensor detects.... I'm not sure what the other keys do. ProximitySensorOn was set to 0 on my registry and now when it's 1 I see no difference.
Click to expand...
Click to collapse
Although I was looking for other reasons -- see below -- I get the same result; & even when you do change ProximitySensorOn to 1, it doesn't survive a soft reset: simply reverting to 0....
What I was looking for was some way of disabling the Proximity Sensor (PS) altogether: because (i) I'm deaf, & I therefore Bluetooth all calls directly to my 'hearing instruments'; & (ii) I've just bought a case which covers the darned thing (meaning the PS) up, permanently locking the touch-screen when it's on! (Aargh.)
Having spent the last couple of hours (plus) searching the TP2 forums on here (& a related one on PPC Geeks...), I've discovered that: (i) lots of people are having PS-related problems; (ii) some of these problems are to do with TouchFLO 3D; (iii) some may be related to various forms of screen-locking; (iv) some may even be caused by other tweaks or hacks we've carried out; & -- last, but not least, as lots of other proud TP2 owners have bought similar cases -- (v) I appear to be the only one having this particular problem (...probably caused by (iv)?)!
It's as if my particular sensor thinks my ear is permanently glued to the screen... -- I can operate all the buttons & the keyboard; but the screen (even though I can turn it on with the power switch) just will not respond while the case is attached (& therefore covering the sensor...).
If anyone has any ideas -- apart from drilling a hole in the case, somewhere (randomly) to the left of the HTC logo... -- please let me know!
Thank you for reading...
- $.
PS: I have a UK-spec., unbranded, GSM Touch Pro2 (...not that this seems to make any difference); & I've already tried turning off any locks & PINs (& changing their duration), as well as the owner information screen....
Forget the Curtain.
This enables your proximity sensor even when you are using your BT
leepriestenator said:
Forget the Curtain.
This enables your proximity sensor even when you are using your BT
Click to expand...
Click to collapse
What is this CAB doing? Because I am also interested in adding support by the Proximity Sensor in TouchLockPro. So how can I start programmatically the proximity sensor? Just changing a registry key
leepriestenator said:
Forget the Curtain.
This enables your proximity sensor even when you are using your BT
Click to expand...
Click to collapse
It works 。Thanks

Phone display keeps coming on during calls

Has anyone noticed their phone likes to turn itself on during phone calls as the phone touches your head?
I thought that could be fixed with Advanced Configuration Tool and these options:
◦Phone sleep during call
◦Fast sleep during call
But they both are gone. They were there on my Kaiser. Any ideas?
It's supposed to turn off due to the proximity sensor. I'm using a T-Mobile USA TP2 and it turns off as it touches my ear. One way you can test this, if you haven't already, is to call a phone, then as it is in progress, lay the phone with the screen up, and put your finger across the top of the facade of the phone (cover the top area where the earpiece is). When I do that, in order to replicate my ear towards the phone, the proximity sensor blanks the screen.
As for the AC tool settings you mentioned, I've never touched those, so mine are on the default settings.
Hey, wow! You're right! When the device is against my ear, the display is out. As soon as I pull it away, even slightly, it turns it on!
I'm simple, I know. My wife tells me that all the time.
motocrossmann said:
Hey, wow! You're right! When the device is against my ear, the display is out. As soon as I pull it away, even slightly, it turns it on!
I'm simple, I know. My wife tells me that all the time.
Click to expand...
Click to collapse
It's okay, when I first got my TP2, I encountered the same thing you thought was a problem. Then I saw a video online demonstrating proximity sensors and the guy on the video put his finger along the top/speaker area of the device and the screen turned off. I replicated his actions on my TP2 and realized that the proximity sensor activates when something is touching it or gets fairly close to it. BTW, we're all simple; we just excel in different ways!
LOL, me and the wife learning this stuff too. Hey, heres another (which i just created a post for), GO rub a magnet on the face of the phone while the screen is OFF, right over the tiny keypad. If you have a soft case with magnet in the flat, go see the funky result
carhigh said:
LOL, me and the wife learning this stuff too. Hey, heres another (which i just created a post for), GO rub a magnet on the face of the phone while the screen is OFF, right over the tiny keypad. If you have a soft case with magnet in the flat, go see the funky result
Click to expand...
Click to collapse
Well since I'm already here and I don't want to search for that post (sorry to the Mods since this is irrelevant for this thread), I can answer that too. It's already a well-known issue. The magnet tricks the phone into thinking either the keyboard and/or the stylus is being opened/taken out. However, it is more accepted that the phone is being tricked into the keyboard being opened. There's a registry edit posted on these forums that can fix that, but the downside is if you want the screen to turn on when the keyboard opens, it will no longer turn on without having to press the screen wake-up button.
I'm just using the Slide2Unlock v.204 for WVGA devices. It keeps the phone locked even if the screen turns on. When I slide my phone into my magnet-clasped holster, it sometimes turns on. It's just a habit for me now to check the screen once it's in the holster, so I can turn the screen off if it woke up by itself.

Proximity Sensor

Hey i don't know if this deserves its own thread or not, but i think it'd be pretty cool if the proximity sensor on the Touch Pro 2 could be used like those on blackberries, that when you put the phone in your pocket or a case with the screen on the screen would automatically turn off then turn back on when you took it out. Don't know if this would be possible but it is a really cool concept. Thanks
blackberries turn on cause theres a little magnet in the cases that turn on and off the screen. i dont think any blackberries have a proximity sensor. the storm is the only one with a touch screen to accidentally hit but you have to click it to do anything, and if your pushing a bb hard enough into your face to make the screen click, you deserve the have it push random buttons.
oh ok, that kinda sucks, still be kinda cool if it could be done though
i was wondering if theres some way to change the sensitivity or distance of the proximity sensor, i notice when my wife was using the phone the screen would turn on and off randomly i guess because of the way she was holding it to her ear, then i started noticing through the corner of my eye that my phone was doing this as well, it must think i've pulled it away from my ear when it senses different cavities in my ear, i'd like to turn it up to an extra 1/2" or so when i do hold the phone to my ear i know for certain it stays off, and when i really do pull it away from my head the screen wakes up. has anyone found the settings for this yet? i'm running juicy rom and my wife has mightyrom
TheLetterMan said:
Hey i don't know if this deserves its own thread or not, but i think it'd be pretty cool if the proximity sensor on the Touch Pro 2 could be used like those on blackberries, that when you put the phone in your pocket or a case with the screen on the screen would automatically turn off then turn back on when you took it out. Don't know if this would be possible but it is a really cool concept. Thanks
Click to expand...
Click to collapse
you could have it that way but you would need to disable the power off after x minutes. then all you would need to do is keep the proximity sensor enabled
Changescreen has an option under the advanced settings to suspend the phone when it's placed face down or in your pocket (as long as its put in your pocket upside down). It doesn't turn back on when you pick it up or take it out of your pocket though, you have to hit the suspend button for that. I'd reccomend checking it out.
Oh ya it also does screen rotation via the G-sensor.
trevoroni said:
Changescreen has an option under the advanced settings to suspend the phone when it's placed face down or in your pocket (as long as its put in your pocket upside down). It doesn't turn back on when you pick it up or take it out of your pocket though, you have to hit the suspend button for that. I'd reccomend checking it out.
Oh ya it also does screen rotation via the G-sensor.
Click to expand...
Click to collapse
I'm not sure if Changescreen actually uses the proximity sensor. It will shut off the screen even if you turn it upside down in the air. And I have found on numerous occasions that it still leaves the screen on in your pocket, which is too bad because it's handy to have.
Try PocketShield. It will automatically shut the screen off when put in your pocket or case. There is a free and paid version.
t0mmyr said:
i was wondering if theres some way to change the sensitivity or distance of the proximity sensor, i notice when my wife was using the phone the screen would turn on and off randomly i guess because of the way she was holding it to her ear, then i started noticing through the corner of my eye that my phone was doing this as well, it must think i've pulled it away from my ear when it senses different cavities in my ear, i'd like to turn it up to an extra 1/2" or so when i do hold the phone to my ear i know for certain it stays off, and when i really do pull it away from my head the screen wakes up. has anyone found the settings for this yet? i'm running juicy rom and my wife has mightyrom
Click to expand...
Click to collapse
I'm with t0mmyr on this issue.
I too find that when having been on a call, my screen can end up with started apps, on the programs page, etc.
I too think that a 'tweak' on the proximity sensor will go a long way to fixing this issue. The trick is to find exactly what to tweak and this is where we need a little guru-like guidence.......!!!
Cheers
Jabberoo
theres a few interesting keys in hklm\software\htc\proximity. i wont mess with them. i wouldnt like the screen to turn on every time i pick my phone off a table or something.
The Jack of Clubs said:
theres a few interesting keys in hklm\software\htc\proximity. i wont mess with them. i wouldnt like the screen to turn on every time i pick my phone off a table or something.
Click to expand...
Click to collapse
Thx for the heads-up
I looked into them but with no result.
There must surely be a way to 'fiddle' with the range..?
Cheers
Jabberoo
i dont think there is a boost on range. i think the emitter intensity is fixed and would require hardware tinkering to make reflections on object brighter for the receiving sensor.
trevoroni said:
Changescreen has an option under the advanced settings ....
Click to expand...
Click to collapse
Actually I played with it a little and realized that it does in fact use the proximty sensor and g sensor. It just seems to bug up some times (or it just might be my device)
Not just yours mine does this as well. I make sure I don't move the phone away from my ear at all but if it is a long call it always seems that either the notification bar or the start button got pressed during the call. It is driving me nuts. I had a program written by someone on XDA for my Fuze that worked awesome called touch in-call screen tweak I want that functionality with the tilt 2
dalavar said:
Not just yours mine does this as well. I make sure I don't move the phone away from my ear at all but if it is a long call it always seems that either the notification bar or the start button got pressed during the call. It is driving me nuts. I had a program written by someone on XDA for my Fuze that worked awesome called touch in-call screen tweak I want that functionality with the tilt 2
Click to expand...
Click to collapse
TouchLockPro has InCallTweak built in. See youtube video in the link. And recently also has added ZoomBar unlock. And it is *FREE*

How to keep screen on when answering the call

Using Desire for months and everything prefect except one thing. Sometimes I need to press the button on the screen after some system message which need to be heard first. When I put the screen on my ear then its off. I can use the headphone sometimes but not always. I believe its because of the sensing function but cant find the place to turn it off. Could anyone who can tell me how to keep screen on when answering the call? Thanks in advance.
The screen goes off due to the proximity sensor, but it should be back on again when you take the phone away from your ear.
This definitely works for me, though I can imagine that if you have your hand close to the proximity sensor it could cause problems.
Regards,
Dave
I tried again and notice that, sometimes the screen can come back but after long time waiting, but in most case it cant. I am not sure the position where the sensor located. I am using the zagg invisible shield screen cover and not sure if that caused the error of the sensor. Anyhow, is here a place to turn this face sensing function off?
PS, after I cleaned the screen cover then it seems get better response time to show the screen after move the phone away from my face. But still not rapidly as normal phone with keyboard and influence the using experience. So if there was a option to turn this face sensing feature off then it could be better.
I found this link where some one who had the same issue found it was related to their Zagg protector, but on the same thread there are others who have had no such problems.
The proximity sensor is in the top left of the screen, within the black border. circles - see here.
Regards,
Dave

Screen Sensitivity

Is anyone experiencing extreme screen sensitivity? My phone seems to pick up pressure from the outside of the frame and launch random apps, even though i am using my finger to press on other areas of the screen. Not saying that I am holding the phone correctly, but it really seems weird.
Paperinik68 said:
Is anyone experiencing extreme screen sensitivity? My phone seems to pick up pressure from the outside of the frame and launch random apps, even though i am using my finger to press on other areas of the screen. Not saying that I am holding the phone correctly, but it really seems weird.
Click to expand...
Click to collapse
only thing I can think of would be check and see if "increase touch sensitivity" option is enabled.
settings>device tab>display> at the bottom "increase touch sensitivity". make sure that option is disabled.
Mine was way too sensitive also, and increase sensitivity was unchecked. Since I put a slim case on, I've had no problems.

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