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[Q] touch screen malfunction

hi,
I'm not sure when exactly this issue started on my phone, but I updated my touch pro with the chevron updater and have quite a lot of apps installed.
after several seconds workling with the phone, the touch screen stops working while the phone acts perfectly normal. I can use the keyboard and tilt the phone but I cannot use the touch screen anymore.
By turning the phone off and on it works again.
has anyone experienced a behavior like this?

I noticed my touchscreen becoming unresponsive when loading particular websites. Even had it freeze once (only time it ever froze on me)
What were you doing when it does this? Do you have the multitasking reg edit on?

exilkubaner said:
hi,
I'm not sure when exactly this issue started on my phone, but I updated my touch pro with the chevron updater and have quite a lot of apps installed.
after several seconds workling with the phone, the touch screen stops working while the phone acts perfectly normal. I can use the keyboard and tilt the phone but I cannot use the touch screen anymore.
By turning the phone off and on it works again.
has anyone experienced a behavior like this?
Click to expand...
Click to collapse
I know this is an old thread but this is the only reference to the exact same problem that I'm having. I'm having difficulty putting this down to hardware as the screen becomes responsive again when locking and unlocking which might point to software.
It could be a hardware issue that is resolved by locking then unlocking the phone but I don't know enough about the construction of it to have an opinion.
The advice I've had from htc is to wipe the 'phone and start again but I don't expect that to solve it (especially as their call handling system refers to Window Mobile 7 - the second large commercial organisation I've seen that on in recent weeks without looking too hard!).
Has anyone else seen this since the original post or @exilkubaner was a solution found to your problem?

Hi,
I have exactly the same problem. I hard reset my HTC 7 Pro, but no success, my screen doesn't respond until i lock/unlock the device.
So, any one have resolved this issue since the first post ?
Regards

Had the same issue, but I didn't have any roms installed.
Brought it in to Sprint and they found that I had a fried ribbon connecting the screen to the phone. Replaced under warranty.
It happened again, I determined that it was caused by my click in belt clip/holster. When I pull the phone out, it pulls the screen away from the keyboard a bit.

^Wow. Nice find. I'll have to be careful with mine now as I could easily run in to the same problem pulling it out like that.

Touch screen sensitivity

Hello. I have an Nvidia Shield tablet k1 on lollipop 5.1.1. Everything is great about this tablet except the touch screen. It is really sensitive. Also, when I am scrolling, it "jumps" and goes faster than I actually scrolled. It scrolls faster than it should. I found this thread on xda. It helped a little with the being too sensitive issue, but scrolling is still really weird. This is my second device since the first one's micro sd card was defective. They both are like this. Is there anything I can do, or do I just have to deal with it?
http://forum.xda-developers.com/shield-tablet/general/adjust-touchscreen-sensitivity-t2963326

I was opening a thread with this exact same issue. I'm not on stock though (using the latest CM12 nightly), so I don't seem to have the 'Sensor Calibration' option.
Also the touchscreen seems to register a touch even when the finger is not touching the screen.
On the other hand, if I scroll a very small distance (like 0.5 centimetres) the list I'm scrolling doesn't move at all. This doesn't happen on other devices such as my Nexus 5 and Nexus 7 and is very annoying in some cases (some games, or moving the cursor for keyboard input).
I'll try to record a video of this behaviour.
What can we do to fix this?
Update: found a video (not mine) showing the issue I'm talking about: https://www.youtube.com/watch?v=08uPtusOJHQ

anyone else with this issue?

I also have this issue on/off sporadically on stock rom.
I'll be scrolling and itll jump back the opposite direction
Its like it looses track of the touch then catches it again.
It's irritating as my S5, Nexus 2012 have no problems scrolling smoothly.
I don't recall the original shield i tested in store to have this issue either.
Currently having amazon ship me a replacement to see if its just limited to the one I received. (QA issues)

Calibrating screen might fix the issues: go to About in settings and tap on model number until the calibration screen comes up. then hit calibrate. don't touch the screen then when it asks to reboot, reboot.

variance said:
Calibrating screen might fix the issues: go to About in settings and tap on model number until the calibration screen comes up. then hit calibrate. don't touch the screen then when it asks to reboot, reboot.
Click to expand...
Click to collapse
Did it fix the issue I posted the video about? I'm on Cyanogenmod now so I don't have the option to calibrate the screen, but I would consider going back to stock if it fixed this issue...

Calibration doesnt help at all , same issue at brand new k1. Nvidia says thats normal functionality lol

Yeah, very normal for a gaming tablet which would require precision...

Not trying to take up for this thing but I haven't had the first touch screen issue with it . so maybe not all is affected?? I've tried to replicate the issue but just can't everywhere I touch and slide is smooth

You mean it doesn't "jump" like the OP said? I don't seem to have that issue either.
I'm more concerned about the touchscreen's precision, as shown in the video.

Strange 6.0.1 Face Unlock Behaviour

Hello everyone, I have been searching for this specific issue and have found nothing, apologies if this has been addressed. First, I am on my second week of Android after 6 years of iOS so please bear with me, I may not have all the terminology down.
I am running a Nexus 5 (bootloader unlocked if that matters) with 6.0.1, otherwise stock. It was a new-in-box model with 4.4.3 loaded, I updated by flashing it rather than a side-load. I was having the following issues with Face Unlock:
1. First issue, Face Unlock would randomly stop working, when you go into the settings to 'Improve Face Matching' it would report that 'Google Play services has stopped'. This would be accompanied by an increase in processor demand from Trusted Face and a severe drain to the battery, I am assuming it was frequently trying to connect to Google Play. No issue in Safe Mode. This was resolved by disabling Google Play and reinstalling the latest version.
2. Second issue, Face Unlock would again randomly stop working, but this would be accompanied by the Camera also failing to function. I would either get a 'Camera cannot be accessed' report or just a blank screen (camera controls visible, but no picture in the viewfinder). Going to 'Improve Face Matching' would report a problem with the camera. No issue in Safe Mode, so I am assuming the camera hardware was fine. This was resolved by disabling the Camera app and reinstalling the latest version. I had to do this twice, along with the Google Play update, before it worked consistently. This would again result in a reported drain coming from both 'Trusted Face' and the Camera app, again I am assuming it was constantly trying to connect to the Camera.
3. Last issue, Face Unlock randomly stops working, with no issues reported in either the camera or Face Unlock settings. no change in battery life and no reported processor demand using System Monitor Lite. If I open 'Improve Face Matching' I get the white screen with white dots with a permanent "Starting up..." notice. This is easy to fix, a reboot always gets it working again. Usually it stops within 6-10 hours of use, sometimes shorter or longer. Rebooting into Safe Mode also fixes the problem, but I am not sure if that is just because of the reboot. I have not run Safe Mode long enough to replicate the issue.
Any thoughts on how to troubleshoot? I suppose I can just disable Face Unlock but I find it quite handy. It seems to be a little bit different than the plethora of other Nexus 5 camera / Smart Unlock problems I have been reading up on.

ghost/phantom touch issue in 1+7pro not solved

I have reading the forum and tried contacting 1+7 also but they just say switch off nfc and so on but till today (1 month since I bought it ) I still have the problem . while making a call it goes on hold or connects another call or something or the other happens and the other person gets irritated as if I am doing on purpose. I am still unable to solve this will changing rom be the solution or can someone please help I am fed up with this instrument

My 2 cents... are you sure that it's a ghost touch issue? To me it seems more a proximity sensor trouble... it is possible that, while in call, screen doesn't go off (or wake up while you're talking) and your ear triggers commands at random.
Try to check that your screen remains black while in call, else you could try to reset sensors with one of the apps available on Play Store.
BTW: I had a similar problem one or two times, but maybe because I wasn't so near the phone while I was talking.

will try out can you advice reset sensors apps
jonsat said:
My 2 cents... are you sure that it's a ghost touch issue? To me it seems more a proximity sensor trouble... it is possible that, while in call, screen doesn't go off (or wake up while you're talking) and your ear triggers commands at random.
Try to check that your screen remains black while in call, else you could try to reset sensors with one of the apps available on Play Store.
BTW: I had a similar problem one or two times, but maybe because I wasn't so near the phone while I was talking.
Click to expand...
Click to collapse
will try out can you advice reset sensors apps

Issue is back again after 9.5.9 update.

IEESH said:
will try out can you advice reset sensors apps
Click to expand...
Click to collapse
Search for "Proximity sensor reset" or similar names. Usually apps like that needs root privileges, btw.

I've had problems with the screen waking up and then causing problems while in call too. This while it's still against my face. Apparently touching my face makes it go into other apps and causes problems. I've had it go into airplane mode, mute and do other weird stuff.
I've had the screen go crazy with multiple chains of taps too, especially while holding it in landscape mode.
Turning the refresh rate down to 60 Hz helped some, but the problem's still there.
I think there's something jacked in their implementation. I came from an S8 that had a curved screen and I never had the phantom tap problems I have with this thing.

Superguy said:
I've had problems with the screen waking up and then causing problems while in call too. This while it's still against my face. Apparently touching my face makes it go into other apps and causes problems. I've had it go into airplane mode, mute and do other weird stuff.
I've had the screen go crazy with multiple chains of taps too, especially while holding it in landscape mode.
Turning the refresh rate down to 60 Hz helped some, but the problem's still there.
I think there's something jacked in their implementation. I came from an S8 that had a curved screen and I never had the phantom tap problems I have with this thing.
Click to expand...
Click to collapse
Disabling double tap to wake resolved my screen wakeup during calls issue...

UPG to 9.5.10 Plz - Issue has disappeared again.

ram4ufriends said:
Disabling double tap to wake resolved my screen wakeup during calls issue...
Click to expand...
Click to collapse
I'll try that, but I don't think I have that enabled. I disabled NFC for the other tap issues and that helped some.
I really wish there was a screen calibration tool. Samsung curved screens have none of these issues.

Do you have a dirty screen protector?

This is a known bug with the proximity sensor, although, actually, I believe the root cause is something else.
Screen does go black, which indicates the proximity sensor is working and recognizes your face is near... But input is still allowed (meaning it does not lock it).
As a result, during a call your face/ear will press whatever is underneath and trigger random actions.
I believe (I hope?) that OnePlus is aware of this issue and they issue a fix.
I think it was briefly fixed for 9.5.9 and then reverted on 9.5.10 since it introduced other issues.
Quality control has been a bit subpar on the OnePlus 7 Pro builds when compared to my previous OnePlus phones...

All issues Android 10 update xz2 compact

I think it would be useful to have a collection of all bugs of the android 10 update. From my point of view it is a disaster.
I noticed the following (after I factory reset it) :
Touch issues - touching the screen lightly does nothing. I have the actually tap it... This makes writing a pain, as hard to reach keys do not always register
Backlight auto adjustment issues - now it's very aggressive and basically stupid. I'm sitting in home, in the evening, almost without moving, definetly in the same spot and the backlight just jumps around in big increments
Lag and shutter in daily usage - a restart solves this for a couple of hours...
apps are now often reloaded - memory manager is too agresive and kills background apps
GPS NOT WORKING. It was flawless before update ?
build-in swiftKey keyboard does NOT remember how and where you type IF you change the keyboard layout /position (compact, split, side, etc...). This essentially makes it useless

A factory reset is not enough , try software repair using Sony companion

Im not having touch or GPS issues, but my phone is definitely slower and laggier since the upgrade to android 10. ALso my battery seems to be depleting faster. Is there any way to roll back to 9?

veverone said:
I think it would be useful to have a collection of all bugs of the android 10 update. From my point of view it is a disaster.
I noticed the following (after I factory reset it) :
Touch issues - touching the screen lightly does nothing. I have the actually tap it... This makes writing a pain, as hard to reach keys do not always register
Backlight auto adjustment issues - now it's very aggressive and basically stupid. I'm sitting in home, in the evening, almost without moving, definetly in the same spot and the backlight just jumps around in big increments
Lag and shutter in daily usage - a restart solves this for a couple of hours...
apps are now often reloaded - memory manager is too agresive and kills background apps
GPS NOT WORKING. It was flawless before update
build-in swiftKey keyboard does NOT remember how and where you type IF you change the keyboard layout /position (compact, split, side, etc...). This essentially makes it useless
Click to expand...
Click to collapse
Wifi is often lost and quickly reconnects
fingerprint sensor isn´t as sensitive as it was before
battery drain is bigger than before
bluetooth pairing with tablet doesn´t work properly...being paired: YES, but no connection at all...tried three different tablets...bluetooth headphones work!

The camera application is crashing when I take photos.... :crying:

I really haven't faced any of those issues. The fingerprint is the only things that have become laggy, the phone is louder now when playing music, camera works great even with unlocked bootloader.
You should try to do a clean install with newflasher my phone is even rooted and works great.

carloszf said:
Im not having touch or GPS issues, but my phone is definitely slower and laggier since the upgrade to android 10. ALso my battery seems to be depleting faster. Is there any way to roll back to 9?
Click to expand...
Click to collapse
Scratch that... I am experiencing all the issues from OP's post. It is especially severe when trying to use two apps at the same time in split screen.

Sony mobile engineers answer my bug report
Android Beam doesn't work (transferring files by touching two phones with NFC).
Nothing works on this phone any more!
I will never buy another Sony phone and surely I will advice others against buying such sh*t.
------------------
I contacted the Sony support in my country and they said "the download must have been corrupt" and I "should try to reinstall" via the Xperia companion (some kind of desktop app).
Mind boggling is the fact that this answer comes "directly from Sony engineers".
Now... I guess it is clear for everyone why they f*ucked this phone so bad. Their engineers think that a corrupt file can 1) be installed successfully 2) cause all these bugs...

Hamzakovsky said:
A factory reset is not enough , try software repair using Sony companion
Click to expand...
Click to collapse
Why factory reset is not enough?
If the corect procedure is to use that "companion", WHY they pushed the update via OTA?

veverone said:
Why factory reset is not enough?
If the corect procedure is to use that "companion", WHY they pushed the update via OTA?
Click to expand...
Click to collapse
The only brand who has this crappy issue is Sony ! Companion fills all the missing files or damaged files .. during the ota download and installation sometimes things go wrong

For everyone reading this thread: there is no such thing as instalation with corrupt or missing files.
All files in today's IT world are uniquely identified and double checked after download.
Their answear is only a way of not telling us that they f*cked up this + they think that we are stupid. Some of us might be fooled by this, but surely the majority won't be.

We have primarily the camera issue, a reboot resolves it temporarily.
Anyone managed to fix these issues with a fresh Sony companion install?

52.1.A.0.618 here. Fingerprint is slower and the battery drains faster while screen on. (Standby and deep sleep are both ok). Everything else is the same as Pie, at least for me.

Add me to list of unhappy xz2 compact owners. Phone is almost unusable since the update. More often than not the finger scanner only works when you press the power button first, it lags awfully in most apps, I get errors in apps I never did before, battery drain is about the same as previous. Overall this is my last Sony. Very very poor. Should add I did full companion restore and it made zero difference

I have to add my voice to this thread, short as it happily/sadly is. Since the update I've experienced a number of issues: Fingerprint scanner is less sensitive and sometimes doesn't work, the wake-up procedure is strange, in that the icons will appear before the background loads and even though I have security set to not show notification details on the lock screen, they'll reveal for a split second before waking up to the home screen, the camera is unreliable, the timer app doesn't reset or dismiss when appearing on the notification bar..
It's the first time I've ever emailed Sony Support on what was (and I hope still will be) my favourite ever phone. They of course just tell me to factory reset. Such a shame and I hope they fix it.

majorwedgy said:
Add me to list of unhappy xz2 compact owners. Phone is almost unusable since the update. More often than not the finger scanner only works when you press the power button first, it lags awfully in most apps, I get errors in apps I never did before, battery drain is about the same as previous. Overall this is my last Sony. Very very poor. Should add I did full companion restore and it made zero difference
Click to expand...
Click to collapse
I'm having the same issue. Not sure what is wrong. I have not factory restored my phone. That is ridiculous

I also add the bug of Google Assistant in Stamina Mode:
I always keep It disabled when long press home button, but when Stamina Mode turns on, Google Assistant switches on again automatically although in settings shows that is off.

wow its been 2 years since I bought the XZ2C, had issues with the wifi and data so I went back to android 8.0, and use it for O2 priority only. Came back to see if android 10 fixed the problems. Disappointing.
I am not surprised at all that Sony still hasn't fixed any of the issues.

With today's New Update the the voicemail-Record-Volume Bug is fixed.
Finally. Too good to bei true.

tyrael11 said:
With today's New Update the the voicemail-Record-Volume Bug is fixed.
Finally. Too good to bei true.
Click to expand...
Click to collapse
there are still a lot of vital features that were bugged in android10 and i´m not sure they´ll be adressed in the near future.