Develop Bugs

[Q] 2 quirks

Guys
2 quirks
1) sometimes when entering my PIN on voicemail, the screen just blanks out - it doesn't happen every time but probably 1 out of 3 times. I tested dialing 611 and entering digits and it never happens
2) Flipping screens on widgets or apps, sometimes it doesn't move to the next screen. I have to make sure my finger goes all the way to the right of the screen to flip it to the next page. Not sure if this has anything to do with the XO skin protector I put on but don't recollect this problem started right after I installed the protector
Any of you guys seen this?

What version of ICS you have on your phone, custom rom etc..? Also GSM or Verizon?
I notice sometimes the screen goes off when talking on phone, and it doesn't come back on when I move it away from my face (like it's supposed to right?).
Also I just tested flipping pages in the browsing all apps/widgets, and I only have to slide my finger as little as a half inch, to flip pages. However if you do this slowly it will not flip pages, so it depends on the speed to slide and let go of the screen. This is also true for the launcher, flipping screens. So not sure why this would be happening to you?? I also have a screen protector as well (cheap dry application one $1.99 from ebay)
Try turning off the screen next time if happens and then back on and see if it goes back to normal behavior...? Does the phone accurately follow your finger completely? If not it might be some hardware issue with the touchscreen. If it doesn't then I would definitely remove your screen protector and test for the issue.

is there an app i can use to test if the screen is following my finger properly?

verizon and using stock os (rooted it of course)

sam008 said:
is there an app i can use to test if the screen is following my finger properly?
Click to expand...
Click to collapse
It's built in, just go to settings, developer options, show touches (check this)
It will show a small circle following where your finger is touching.
Also there is an even better setting above that called "show pointer location" Which will draw a line showing where you have been touching the screen.

Working fine

sam008 said:
Working fine
Click to expand...
Click to collapse
Strange, is this something new to ICS 4.0.3? Can anyone else confirm? I've only used 4.0.2 and 4.0.1.
If its following your finger accurately the only thing that would make sense to me is the ROM or kernel/drivers...??

i'm on 4.0.2 with verizon - there aren't any other updates available when i check

sam008 said:
i'm on 4.0.2 with verizon - there aren't any other updates available when i check
Click to expand...
Click to collapse
Ah for some reason I thought 4.0.3 was already pushed out to Verizon Galaxy Nexus phones, turns out that is not the case... ignore what I said earlier about it being associated with 4.0.2 I guess..
If you really want to get this fixed one suggestion would be to back up your phone (nandroid and/or titanium backup), and do a factory reset... if the page flipping issue goes away then you can at least isolate it the issue a little better...
I'm curious to see exactly the extent of the page/screen flipping issue you have, if you have the means, and have some time to blow, make a youtube video of the issue in action and maybe it will be a little clearer to see whats happening...

Touch screen issues?

Hi,
I have a UK sim free model. It sometimes misinterprets a tap or adds a phantom tap. Its not terrible but I'm sure mine has a issue. A quick Google and a tweet tell me I am not alone. Anyone else seeing this? I could return but I'm dubious it's hardware related...just not sure if it's worth waiting for a software update...

RealEvil_UK said:
Hi,
I have a UK sim free model. It sometimes misinterprets a tap or adds a phantom tap. Its not terrible but I'm sure mine has a issue. A quick Google and a tweet tell me I am not alone. Anyone else seeing this? I could return but I'm dubious it's hardware related...just not sure if it's worth waiting for a software update...
Click to expand...
Click to collapse
I have same issues with my g4 here in the US.

Unfortunately same here, on a G4, korean model F500S.

I have the same issues on my G4. So probably returning it won't solve it. I notice it the most when I am scrolling in Facebook or web pages I will open a link accidently.

I have the same, occasionally it just won't respond to some taps, i find just pressing the standby on/off button quickly sorts it but it is very annoying.

same here in israel, sometimes do not respond to double tap on lock screen to wake the G4 up
im sure its a software issue, prolly the LP 5.1

Are so you guys using screen protectors? That was the issue for me with g3 and g2.

20degrees said:
Are so you guys using screen protectors? That was the issue for me with g3 and g2.
Click to expand...
Click to collapse
I am using the out-of-the-box protector on G4. So the thing u mentioned was it with this kinda protector or after-market glass protector?

Try...SGS Touchscreen Booster - Google Play Store
I have run into this same problem with my Verizon G4 (VS986). Many of my taps have gone unrecognized.
I did find this.... http://forum.xda-developers.com/g4/help/fix-touch-screen-registering-touches-t3128518
I tested the software that was recommended...and IT WORKED!
Give it a try...can't hurt!

nipun1110 said:
I am using the out-of-the-box protector on G4. So the thing u mentioned was it with this kinda protector or after-market glass protector?
Click to expand...
Click to collapse
After market but plastic.

Just started to get issues where taps on the far left-hand side of the screen don't work.

blackknightavalon said:
Just started to get issues where taps on the far left-hand side of the screen don't work.
Click to expand...
Click to collapse
Okay, I was able to replicate my bug. It happens after playing a game and stops after some time. Turning autorotate back on and switching back and forth from landscape view fixed it.

Hey guys.
I was searching the forums for a fix that solves the phantom/ghost touches I'm getting frequently on my LG G4, H815 model.
Sorry for the long post but my case looks a little more complex than the ones I've been seen in here.
In my case, that's how it happens:
I receive several multi-touches at the same time, usually when Data is enabled. Sometimes it starts right when I switch from Wi-Fi.
It happens often when I'm driving and using Location+Data as well, which drives me crazy. I does also happens (like another user mentioned in this thread) when scrolling down a feed (such as on Facebook) and it suddenly likes/shares a photo/post. It also drives me crazy! And there is also the case where it taps the keyboard and send crazy typos on chat apps when you are real-time texting someone! Another hassle is right after using the camera and opening the gallery to show someone the taken photo...it suddenly scrolls the gallery and open another photo. I just can't make it to see the taken pic. Therefore, I really wanna fix this so bad since it happens every time I need something right away.
A workaround that's been helping, though it's a pain:
I found that pressing the On/Off button and giving it a few seconds will return it to a normal state. The problem is when it happens while I'm driving and are supposed to take an exit/make a turn at the moment. There are some other cases where I'm into something and giving this few seconds is not an option.
Trying right now:
Someone suggested in this thread to use the SGS Touchscreen Booster. I'm giving it a try right now.
Important notes:
This issue has been happening since I got this phone on November, 2015. We got this 6.0 update recently and I was hoping that it would fix it. It didn't.
I have an after market screen protector that I applied in order to see if the issue would go away. It also didn't.
I have been searching about a digitizer replacement but I don't think is a hardware issue, since it just doesn't happens when I'm only on Wifi at home with Data disabled. I believe that the problem is the Data connection that triggers smth.
Any thoughts?
Does anyone have any idea or have experienced the same scenario before? Any thoughts on my guess of data enabling triggering the ghost touches?
Sorry for the long post and thank you so much for reading it.

I think it's both, its hardware and software, LG tried to fixed it but it makes it worst. You can solve the problem for few seconds putting your five fingers at the home menu, It goes crazy and after it stopped making ****. Anyway this phone is great but all the problems make it ****.

I am going to use this thread even though I think my problem is not as serious as yours are.
My problem is that touches are registered, but no action is taken.
For example. Quickly tapping on an icon on the home screen will highlight it, but it will not open the application. I enabled the option in Developer mode to display the touches and the touch is registered. It's just that the app will not load. If I click for a tad longer - it loads. Happens on both stock Launcher and Action Launcher. I have not noticed it happening outside the launcher.
I read something about a keyboard update, but in the Update Center I don't have anything related to the keyboard.
The icons I see it happening with are located in the lower part of the screen.
I am almost sure that this is a software problem, but several updates have not fixed it. Currently on v20d.
Any suggestions or ideas?

After a few more testing and monitoring, I found out that the ghost touches only take place when I'm on LTE.
And even more weird, while driving through some specific areas when I'm commuting.
It's just so weird to think that some towers may send a LTE signal that may cause the ghost touches.
At home, at work, wifi or data, it doesn't happen.

Ghost touches in upper third of screen

Hi.
My Z1C seems to have a similar case of faulty display as described in some other threads here, but actually a bit different. The phone is stock, not rooted, running 5.1.1
Whenever I do something, there are ghost touches in the upper quarter or third of the screen. They only happen when I am not touching the screen myself. It happens no matter what I do. When I browse internet, it clicks links, when I scroll contacts, it calls people, when I am on facebook it gives likes etc... It seems like the more demanding task the phone is performing, the more ghost touches.
I turned on the developer settings and the "show pointer location" option, which leaves track of the last touch on screen, so I can research the issue.
I found out that when the phone is on home screen, it happens very rarely or not at all - the track of my last touch stays until screen turns off.
When I jump into the touchscreen service test, it does not happen at all. I can draw a line around the whole screen and it stays higlighted indefinitely.
In lock screen, it also doesn't happen.
I tried it in Sketch and it confirmed what I thought, when I was just sketching, from time to time a dot appeared in the upper part of the screen, but when the phone was downloading or installing in the background, the screen literally had seizures. I touched and released and then a storm of dots started to appear around the top part of the screen. It stopped after 5+ seconds, and after another input from me, the screen got another fit, drawing more dots.
I don't have any experience, but I think that since the problem doesn't happen constantly and it doesn't even happen at all in test mode, it could be a SW mistake.
I have found this thread https://forum.xda-developers.com/showthread.php?t=2691849 and I'm willing to try, but 1) my phone is still under warranty and 2) I have never done a root so I am not too eager. Do you think I should try that? Or has anyone found another solution for this problem?
Thanks.

Slivovidze said:
Hi.
My Z1C seems to have a similar case of faulty display as described in some other threads here, but actually a bit different. The phone is stock, not rooted, running 5.1.1
Whenever I do something, there are ghost touches in the upper quarter or third of the screen. They only happen when I am not touching the screen myself. It happens no matter what I do. When I browse internet, it clicks links, when I scroll contacts, it calls people, when I am on facebook it gives likes etc... It seems like the more demanding task the phone is performing, the more ghost touches.
I turned on the developer settings and the "show pointer location" option, which leaves track of the last touch on screen, so I can research the issue.
I found out that when the phone is on home screen, it happens very rarely or not at all - the track of my last touch stays until screen turns off.
When I jump into the touchscreen service test, it does not happen at all. I can draw a line around the whole screen and it stays higlighted indefinitely.
In lock screen, it also doesn't happen.
I tried it in Sketch and it confirmed what I thought, when I was just sketching, from time to time a dot appeared in the upper part of the screen, but when the phone was downloading or installing in the background, the screen literally had seizures. I touched and released and then a storm of dots started to appear around the top part of the screen. It stopped after 5+ seconds, and after another input from me, the screen got another fit, drawing more dots.
I don't have any experience, but I think that since the problem doesn't happen constantly and it doesn't even happen at all in test mode, it could be a SW mistake.
I have found this thread https://forum.xda-developers.com/showthread.php?t=2691849 and I'm willing to try, but 1) my phone is still under warranty and 2) I have never done a root so I am not too eager. Do you think I should try that? Or has anyone found another solution for this problem?
Thanks.
Click to expand...
Click to collapse
As You have warranty, I would strongly suggest that You go for a repair. I had the same issue in beginning, ghost touches appearing randomly, going away only after reboot. I was rooted and xposed, so went full stock without restoring any apps or data from internal storage, yet the problem remained, thus ruling out the point that it was software problem. And then after a week or so, that much part of screen stopped responding to touch entirely. You can see details over here, Another user had same problem as Mine and had the same end result,

OK then, I'll go for a repair. Thanks for the tip.

Slivovidze said:
OK then, I'll go for a repair. Thanks for the tip.
Click to expand...
Click to collapse
I am having exactly the same behaviour as you described .
Ghost touches happening on the upper part, and triggered when a demanding task is running.
Actually I didn't realized completely about this, I thought it was just random, but right now after I saw your post, I tried an app similar to Sketch while upgrading apps or playing a video in the background. And dots in the upper part start appearing crazily.
Did the phone repair solve your problem ? Mine is not in warranty, so I'll have to pay for it.
But also in my case, before this thing happened, I got some water damage and that upper quarter of the screen stopped responding.
After replacing screen+digitizer I got this very specific behaviour you described.

karamaz0v said:
I am having exactly the same behaviour as you described .
Ghost touches happening on the upper part, and triggered when a demanding task is running.
Actually I didn't realized completely about this, I thought it was just random, but right now after I saw your post, I tried an app similar to Sketch while upgrading apps or playing a video in the background. And dots in the upper part start appearing crazily.
Did the phone repair solve your problem ? Mine is not in warranty, so I'll have to pay for it.
But also in my case, before this thing happened, I got some water damage and that upper quarter of the screen stopped responding.
After replacing screen+digitizer I got this very specific behaviour you described.
Click to expand...
Click to collapse
In my case, I realized that I bought (probably) a badly re-fitted phone. Display's backlight was visible around screen panel edges, where I'd say it shouldn't be visible at all. I decided to return the phone and got a refund.
Sorry for not being able to help you.

Slivovidze said:
In my case, I realized that I bought (probably) a badly re-fitted phone. Display's backlight was visible around screen panel edges, where I'd say it shouldn't be visible at all. I decided to return the phone and got a refund.
Sorry for not being able to help you.
Click to expand...
Click to collapse
Ok. The aftermarket screen I got has that issue with the screen edges also. Very probable you are right.
In my case I water damaged myself. It seems that after 2 years of intensive use, waterproofing is gone, by accumulation of slight hits or so, never had a single crack on the screen. I read many posts reporting this happening, even with much less use time.
Too bad, I loved the phone, but I'm afraid that sending it to repair will mean to change the PCB or similar for a complete fix, which can come to a ridiculous price.
Seems it will be time to move on...

Yeah. If you want it fixed properly, you'd need to send it to Sony, and for the money it would cost you, you can probably gen a new phone. Sadly, similar phones aren't made anymore.

Is there anyway to fix the touch issue?

It gets really frustrating when you have to accept the call and that whole portion is just dead. Should I try changing the ROM as I have tried everything even Factory Reset.

Punchabi said:
It gets really frustrating when you have to accept the call and that whole portion is just dead. Should I try changing the ROM as I have tried everything even Factory Reset.
Click to expand...
Click to collapse
Doe this happen only for the phone app? Or is it always there?

With all the apps and keyboard too. Infact even typing something is the real pain. A particular portion in the bottom side of the screen is completely dead.

Are you talking about the small area ath the bottom of the screen?? Or at the lower middle of the screen? I'm confused you said you couldn't answer any calls... From that point I thought you meant the lower middle part. But now you're saying it's the small area at the very bottom.
Anyways, if it's in the middle then it's likely that your touch panel is dead .
Else if it's just the small part at the bottom then it's nothing serious as it's not hardware related and is present only in the stock ROM. It's mainly for the swipe up gesture to bring up the navigation bar, as according to Lenovo they needed some part to recognise the swipe.
Flash any custom ROM and it'll be solved.

Please vote in here and make a post about when you lost capacitance of a certain part of your screen:
https://forum.xda-developers.com/lenovo-p2/help/digitizer-touch-screen-partially-die-t3666567

My P2 got good bath yesterday in water tank- full of water and working fine with no issues.

Small flickering line observed at left side

I'm not sure how to describe it - I may be paranoid or something but I've observed that sometimes while scrolling on the screen, i see a very thin line flickering on the touch screen for like 0.05 second then it goes away. It happened on the middle left side of the screen.
If anyone has observed this issue let me know as well. Thank you.

I've seen this as well, it didn't occurs everytime but you can see it, sometime on the left side close to the notch, sometime on the middle of the screen..
But until now, nothing to horry about, lets see in the next 3 months

Alright glad to know it's not happening to me only.

frosthawk said:
I'm not sure how to describe it - I may be paranoid or something but I've observed that sometimes while scrolling on the screen, i see a very thin line flickering on the touch screen for like 0.05 second then it goes away. It happened on the middle left side of the screen.
If anyone has observed this issue let me know as well. Thank you.
Click to expand...
Click to collapse
I've written about it with detailed description in the following post
https://forum.xda-developers.com/redmi-note-8-pro/help/strobing-horizontal-stripes-rn8-pro-t3990077
I think we have send bugreports using "Feedback" app.