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[Q] Black Screen on Wakeup?

I just started having this "bug" yesterday. Basically, what happens (randomly) is that when I press the power button, remove the stylus, or slide the phone open to wake it up I'll be met with a black/blank screen. The backlighting will be on, and the phone is responsive (can receive messages, make calls, sounds/notifications work), but I won't be able to use the screen. If I use the power button to turn the screen back off and wait a few seconds, the screen might start working again. This is completely random and I cannot duplicate it with any guaranteed process, but it seems to be when the phone is waking up from standby. After a soft reset, probably half of the time I'll be met with this same delima, which leads me to believe it's hardware and not completely software.
At the same time the phone is also struggling to re-paint the screen from the change of Landscape-to-Portrait and visa versa. Also opening and closing windows to get back to the today screen also cause a problem. I've disabled TF3D to see if that makes a difference, it doesn't. I have a blank today screen with no plugins to free up the system resources, and am still having this issue.
I'm using JD's Rom (probably around 1.3, it's been running fine with no issues up to this point).
I'm also using S2U2 1.35 (if that makes any difference, haven't had any problems until recently)
The phone has never been dropped, it's in InvisibleShield, and normally sits on my desk charging all day.
This started happening last night for no apparent reason and it's really starting to irratate me.
Any advice is appreciated. Thanks.

Re the black screen:
Sounds like its software related. For example, I sometimes have this if I leave PocketTwit in the foreground and turn off phone. What software did you install yesterday? Also, do you try to press the home key and see if that clears the screen?

After more testing..
After some more fiddling around with the phone I'm about 90% certain it's a hardware issue. I noticed that when I slide the keyboard out if the slide portion is past the number line then the screen will stay on, but not update. I don't know how well I can explain it. If I'm typing and hold the screen to keep it from opening all the way then I can see the letters/words appear (in txt msg/email), but if I let the screen goes and it slides all the way open then the screen will stay on and only show what has already happened, any more typed characters will not appear, but if I move the screen back to the number row then the screen will re-draw and update what has happened.
Is this something that Sprint should fix no questions asked?

lulugirl896 said:
Re the black screen:
Sounds like its software related. For example, I sometimes have this if I leave PocketTwit in the foreground and turn off phone. What software did you install yesterday? Also, do you try to press the home key and see if that clears the screen?
Click to expand...
Click to collapse
The last piece of software I installed was Gyrator 2 on Friday-ish. Thinking that it was the problem, I removed it using MemMaid. I'm going to give the phone a flash tonight and see if it is software related (hoping for the easy fix) but as the post above says, I'm almost certain it's a hardware issue. I just wish I knew how it happened. . . So much for that time putting those InvShld on.

Final Update (this can be closed)
I took it into a Sprint store and they replaced the "flip" on the top for free (I have insurance).
Point of the story/thread, this can be closed, it was a hardware issue, and now it's fixed.

Screen Calibration is Off

Hello all,
Awhile back the touchscreen on my Sprint TP2 (RHOD400) was off. I click in one spot, it clicks an inch high. Sometimes more, sometimes less..I tried calibrating, but I couldn't even click the center target once. The problem stopped for awhile, then started up again last week. This time the problem is worse. I press in one area, it presses one to two inches away. I have the phone in landscape mode and try to press the upper right hand corner 'x' and it brings up the notification window. Sometimes the lower right part of my screen is completely inaccessible, and I cannot send a text for quite awhile. Other times it is fine, but not fine to the point where I can get super accurate clicks. I was running Mr.X rom, and flashed to Mighty, but this did not solve the problem. I have also cleared storage. I used to run haret android for awhile, would this have caused any problems? I thought I should try that again since I can force the phone to use a calibration.txt file that works for sure, and see if the phone is "fixed" then. I guess my options are...
Try haret android again
task 29?
reflash?
be sad, it's a digitizer issue
(tldr) Touchscreen is off, but not always by the same amount. Reflashing wouldn't cure it and I can't calibrate it. Targets keep going around and around after the reflash, where before I couldn't get them to click even once.
Maybe one of those will fix my problem..I hope so, but I posted here to see if anyone else had heard of an intermittent touchscreen issue like this?
Thanks for reading/help guys.

Can a mod move this to http://forum.xda-developers.com/forumdisplay.php?f=488 Touch pro 2/Tilt forum? I feel as if I posted it in the wrong forum and I'd get more responses in the other. Thanks!

Have you tried pressing the two volume buttons at the same time to get to that calibration screen. Then try to calibrate and see what happens. If this does not work for you then I would think its a hardware issue.

[Q] [help] notification bar randomly opening

Hey guys,
Had my transformer for 2weeks now and loving it. However recently (first noticed it 2 days ago) the notification bar has randomly started opening itself. It doesnt happen on a regular schedule -sometimes it will happen 3 or4 times in a couple of minutes, sometimes only once or twice an hour but not less often than that.
It happens even when im not touching the tablet at the time so i dont think the screen accuracy/calibration would be causing it.
I have turned it off and off a number of times to no avail and Ive also tried a factory reset and even with no additional apps installed it still happens.
Finally ive tried it both with and without sd card in and it happens in both situations.
Oh, and the dock connector being attached or unattached doesnt stop it either.
Has anyone heard of this happening before and or have any ideas to solve this problem?

i get this too all the time. i'm not touching the screen and the notification pops up for no reason. sometimes apps open up randomly too, for example i get an email notification and the email app opens. very annoying when plugged into a projector whilst giving a presentation.
somebody must be able to help. I'm not rooted by the way and have no intention too.

Sounds like a hardware problem - the touchscreen registering fake touch events. Check for mechanical stress in the lower right corner.

Update
I probably should have added, like yours mine isn't rooted.
I also turned on the developer options for touch detection, and it's definitely detecting "phantom" touches in the bottom right corner so definitely hardware not software issue.
Unfortunately, yesterday I started having issues with the touch screen being unresponsive in the right third or so of the screen, so I've called Asus this morning and am RMAing the tablet anyway.
I'd suggest you do the same rob if it's still in warranty, in case its a prelude to larger issues like mine was.

interesting thanks both. i was weighing up an rma because my keyboard dock is getting very loose, letting the top of tablet move about an inch without hinge moving. i've turned on show screen taps and already seen one. thanks again.

[Q] Ghost touches (especially in dock) with TF700t. How to fix this?

I had issues with my Asus TF700t that quite often it did not react on touch gestures.
And on the home screen the "change backround" dialog opened sometimes without any touch on the device.
This happend very very often when it was in the dock, but also without the dock (less occurence).
Now i know that the reason are ghost touches. By the usage of touch test apps (e.g. "Simple Touchscreen Tester" oder "Yet Another MultiTouch Test") i realized the ghost touches.
This touches are recognized always on the same coordinates. The multitouch test app detects 4 fingers on the same y-axis.
When the tab is in the dock and i open it completely to the maximum the two bolts from the dock are pressing very strong to the background of the screen glass. This is causing the ghost touches.
I opened the tab and tried to find what could be wrong (especially on the area where the touches are detected).
Anyhow i could not find anything. The only thing i noticed was the on the y-axis of the ghost touches the screen is fixed on the left and the right.
I check everything else closed the case ... but the ghost touches are still present.
Any idea how to fix the issue??? Who else realized the same issue???
Attached some screen shots from the touch test apps.

mr_cg said:
I had issues with my Asus TF700t that quite often it did not react on touch gestures.
And on the home screen the "change backround" dialog opened sometimes without any touch on the device.
This happend very very often when it was in the dock, but also without the dock (less occurence).
Now i know that the reason are ghost touches. By the usage of touch test apps (e.g. "Simple Touchscreen Tester" oder "Yet Another MultiTouch Test") i realized the ghost touches.
This touches are recognized always on the same coordinates. The multitouch test app detects 4 fingers on the same y-axis.
When the tab is in the dock and i open it completely to the maximum the two bolts from the dock are pressing very strong to the background of the screen glass. This is causing the ghost touches.
I opened the tab and tried to find what could be wrong (especially on the area where the touches are detected).
Anyhow i could not find anything. The only thing i noticed was the on the y-axis of the ghost touches the screen is fixed on the left and the right.
I check everything else closed the case ... but the ghost touches are still present.
Any idea how to fix the issue??? Who else realized the same issue???
Attached some screen shots from the touch test apps.
Click to expand...
Click to collapse
Sounds like you have a digitiser hardware issue to me. Had the same on my Surface RT. Only fix was to get it replaced.

Yeah, I just got mine back from warranty digitizer recalibration.
tapatalkin'

Another TF700T here that just returned from RMA with digitizer repair. Went very smoothly for me and I have a TF700T that again works extremely well.

Do they replace parts or just recalibration? Is it possible to so this myself?
I have unlocked bootloader and i do not know if they will repair it without any problem. Any experience on this?

Hi,
First, sorry for my english...
Second, I have same problem since saturday 24 august with my TF700T. Buy november 2012.
I tried to updated to android 4.2 But it didn't solve my pb.
I try "Multi Touch test" app and I observed same problem than mr_cg. Thanks for your good description "Ghost touch"
Ghost disappear when i unplug and re-plug dock, (some time two or three time) but just for some second ...
mr_cg said:
Do they replace parts or just re-calibration? Is it possible to so this myself?
Click to expand...
Click to collapse
I would like to do so myself.... because i don't want send my tablet to asus and waiting infinity... any idea?
mr_cg said:
I have unlocked bootloader and i do not know if they will repair it without any problem. Any experience on this?
Click to expand...
Click to collapse
If you are root, you can perhaps try this app:
ILITEK Touch Utility
or
(less chance i think, it did for S2,S3) TouchScreenTune
Me i am not root, but if it is working for you, perhaps i will try to be.
Thanks for your help

Termajik said:
If you are root, you can perhaps try this app:
ILITEK Touch Utility
or
(less chance i think, it did for S2,S3) TouchScreenTune
Click to expand...
Click to collapse
Thanks for the hint. I tried the apps, but both do not solve my issues.
ILITEK ... descriptions sounds good, but unfortunately not working (i get always "access denied" even i have root for sure).
TouchScreenTune ... Based on description it should be also good tool to reduce/improve situation with ghost touches. Anyhow ... it is not working with TF700t.
I am just thinking if i should open the case again???

If with root permissions you don't find solution ... I think i should call Asus support for my first RMA..
snif snif.
Thanks for your return. I win a lot of time.

Same issue
I'm having the same issue here, but only when docked. Seems like I'll stop using the dock since I am out of waranty because I unlocked the bootloader ...:S

I've been having a similar issue very badly on the right side of my screen, it was practically unusable. I am also out of warranty because I'm unlocked. What I did to make it at least somewhat usable was go into the build prop and change my max touch screen events from 200 to 4, and changed my touch sensitivity from .001 to 1 (this setting may have only been available on CROMI. Anyway, now my touchscreen doesn't work on the right side, however it does work everywhere else, and most importantly I can still use the tab as a laptop in its dock. It's a bumm it doesn't work right, but it's better than a total loss!

Sorry guys, it is a failed design problem due to connection to the touch screen. see my post in the "so i took it apart" thread.
Cost me a ruined lcd screen to figure it out

Ghost touches
mr_cg said:
I had issues with my Asus TF700t that quite often it did not react on touch gestures.
And on the home screen the "change backround" dialog opened sometimes without any touch on the device.
This happend very very often when it was in the dock, but also without the dock (less occurence).
Now i know that the reason are ghost touches. By the usage of touch test apps (e.g. "Simple Touchscreen Tester" oder "Yet Another MultiTouch Test") i realized the ghost touches.
This touches are recognized always on the same coordinates. The multitouch test app detects 4 fingers on the same y-axis.
When the tab is in the dock and i open it completely to the maximum the two bolts from the dock are pressing very strong to the background of the screen glass. This is causing the ghost touches.
I opened the tab and tried to find what could be wrong (especially on the area where the touches are detected).
Anyhow i could not find anything. The only thing i noticed was the on the y-axis of the ghost touches the screen is fixed on the left and the right.
I check everything else closed the case ... but the ghost touches are still present.
Any idea how to fix the issue??? Who else realized the same issue???
Attached some screen shots from the touch test apps.
Click to expand...
Click to collapse
What a great thread! Thanks, I've posted this elsewhere but having just send my TF700 back to ASUS I now have a pretty good idea of what might have been wrong with it. Here's what I posted and what I've told them anyway. I've overlooked the Ghost touches unfortunately, so I will let them know that (if they don't already)......any comments welcome...
Asus Transformer S/N D20KAS016975
I've struggled with this tablet since purchase in April this year, not being at all familiar with tablets I did not know whether it was just me, the general setup, or the tablet itself at fault. Most certainly the performance is not satisfactory. I have done three 'Factory Resets' and numerous Soft Resets.
Intermittently, the tablet will scroll and flash through various apps, when I open it. Originally File Manager would open itself up, then I got the feeling the Weather app would upset things. Sometimes a browser would make it do the same. Then I tried various Launchers, but the best of them (I think) sometimes shows the menu unannounced. Same thing, on and off until I intervene.
It is also prone to do this just sitting open by itself.
Clearing the caches sometimes fixes this. Sometimes this will stop by itself, other times I need to either close the lid, press the lock button, or turn it off. Then it will be OK.
At times Gmail will scroll randomly through the accounts, messages, labels etc.
Every browser I've tried will sometimes shut itself off, especially if I try to type something into a message box, usually when I've spent some time doing this!
Occasionally I can feel a slight tingling sensation when I'm lightly touching the back of the screen.
One other thing: When left overnight the mouse doesn't work and the tablet needs to be turned off and on again for the mouse to work. I also think the screen doesn't turn off sometimes (can see a light).
At other times the whole thing works just fine.
Hope this helps.
Regards
Grant

Tablet arrived back this morning
GrantCC said:
What a great thread! Thanks, I've posted this elsewhere but having just send my TF700 back to ASUS I now have a pretty good idea of what might have been wrong with it. Here's what I posted and what I've told them anyway. I've overlooked the Ghost touches unfortunately, so I will let them know that (if they don't already)......any comments welcome...
Asus Transformer S/N D20KAS016975
I've struggled with this tablet since purchase in April this year, not being at all familiar with tablets I did not know whether it was just me, the general setup, or the tablet itself at fault. Most certainly the performance is not satisfactory. I have done three 'Factory Resets' and numerous Soft Resets.
Intermittently, the tablet will scroll and flash through various apps, when I open it. Originally File Manager would open itself up, then I got the feeling the Weather app would upset things. Sometimes a browser would make it do the same. Then I tried various Launchers, but the best of them (I think) sometimes shows the menu unannounced. Same thing, on and off until I intervene.
It is also prone to do this just sitting open by itself.
Clearing the caches sometimes fixes this. Sometimes this will stop by itself, other times I need to either close the lid, press the lock button, or turn it off. Then it will be OK.
At times Gmail will scroll randomly through the accounts, messages, labels etc.
Every browser I've tried will sometimes shut itself off, especially if I try to type something into a message box, usually when I've spent some time doing this!
Occasionally I can feel a slight tingling sensation when I'm lightly touching the back of the screen.
One other thing: When left overnight the mouse doesn't work and the tablet needs to be turned off and on again for the mouse to work. I also think the screen doesn't turn off sometimes (can see a light).
At other times the whole thing works just fine.
Hope this helps.
Regards
Grant
Click to expand...
Click to collapse
Tablet arrived back this morning and seems all OK. Report indicates they replaced the LCD panel (new) & replaced the touch controller board (also new). And did various tests. Good service I think, no fuss. I'll let you know how it's going in a few days.

GrantCC said:
Tablet arrived back this morning and seems all OK. Report indicates they replaced the LCD panel (new) & replaced the touch controller board (also new). And did various tests. Good service I think, no fuss. I'll let you know how it's going in a few days.
Click to expand...
Click to collapse
Grant,
Was your tablet still under warranty? Did they charge anything? I wonder if they redesigned the digitizer connection or just put a new screen which will wear out as well. The digitizer connector runs along the bottom left of tablet screen. Same area is being pressed when you close dock, which wears it out.
You can go to developer settings and enable "show touches" (lowers tablet performance) then press on the bottom left edge of the screen, roughly 1/3 point of its length, and see if you get the ghosts to appear.

Warranty
dankens said:
Grant,
Was your tablet still under warranty? Did they charge anything? I wonder if they redesigned the digitizer connection or just put a new screen which will wear out as well. The digitizer connector runs along the bottom left of tablet screen. Same area is being pressed when you close dock, which wears it out.
You can go to developer settings and enable "show touches" (lowers tablet performance) then press on the bottom left edge of the screen, roughly 1/3 point of its length, and see if you get the ghosts to appear.
Click to expand...
Click to collapse
Yes, still under warranty (problem was there from day 1 although I didn't realise it at the time) and no charge. See attached pdf Customer report. Shows replacement Led panel, & controller board. No sign of ghost touches so far, and really working well actually. Early days yet, but I also note elsewhere in these forums someone mentioned their tablet not working properly 'upside down'. I neglected to mention it earlier but upside down isn't as funny as his respondents made out. I use mine often lying on the couch watching TV, with the tab upside down. Reason I mention it now is that mine acted up in those circumstances too. Anyway, that's fixed too.

[Q] Anyone else have an unresponsive touch screen, especially in games?

I first noticed this on a running game where you have to hold down either the left or right side of the screen to move in that direction. It would usually register the first press, but not that I had held my finger down so I wasnt moving properly. I thought this was due to the game it's self rather than my phone.
I've just downloaded Naugh where you have to rotate the screen by touching either side of the phone, and again the same issue. It's really unresponsive - It will recognise the tap but not that i've held it, it will stop working. Occasionaly this will also happen when scrolling a page.
Has anyone else experienced this? Or if not, any suggestions on figuring out whats wrong?
I have recorded a video that shows what I mean: https://www.youtube.com/watch?v=UW2gCWpThWc

haste75 said:
I first noticed this on a running game where you have to hold down either the left or right side of the screen to move in that direction. It would usually register the first press, but not that I had held my finger down so I wasnt moving properly. I thought this was due to the game it's self rather than my phone.
I've just downloaded Naugh where you have to rotate the screen by touching either side of the phone, and again the same issue. It's really unresponsive - It will recognise the tap but not that i've held it, it will stop working. Occasionaly this will also happen when scrolling a page.
Has anyone else experienced this? Or if not, any suggestions on figuring out whats wrong?
Click to expand...
Click to collapse
When you go to Settings>About phone - there is a Diagnostics section>Test device. You will see a list of tests you could do including touch screen.

I've tried this, thanks.
There is no aparrent issue using this diagnostic. It doesnt detect multi-touch though, which I find a little odd.
I did find this article though:
http://johnhaller.com/blog/2014-03-06--sony-xperia-z1-z1s-touch-screen-issue
Which seems to be the exact same issue I have on my Z3 now.

haste75 said:
I've tried this, thanks.
There is no aparrent issue using this diagnostic. It doesnt detect multi-touch though, which I find a little odd.
Click to expand...
Click to collapse
What do you mean? There are two options; one which shows dots where you are touching, and another which shows two lines for each point you touch; the lines cross at the point you are touching. They absolutely do detect multitouch, so if you're using more than 1 finger but only seeing one point, or one pair of lines, then you have a problem.

I only have one option under that test, which is to see a yelow line. It doesnt detect more than one touch at a time though.
I have downloaded a seperate screen testing app, and that detects up to ten points at once - again without any obvious issues with unresponsive.
I really can only reliably replicate the issue when playing games.

Mine does have a similarish issue.
Double tap doesn't work on first try when you last use the phone for some time.
But i think it is a software thing cause it worked fine when in continuous use.

haste75 said:
I only have one option under that test, which is to see a yelow line. It doesnt detect more than one touch at a time though.
I have downloaded a seperate screen testing app, and that detects up to ten points at once - again without any obvious issues with unresponsive.
I really can only reliably replicate the issue when playing games.
Click to expand...
Click to collapse
In Settings, enable the Developer Options, then tick "show touches" and "pointer location".

I notice this issue all of the time in Ingress, however I have tried multi touch test apps and can easily get perfect tracking with 5 fingers on the screen, so I am sure the multitouch and display is working fine, and I have no problems with Google Maps or Waze where similar gestures to tap on things, and two fingers to rotate and shrink/enlarge are used.
I have no idea what is causing it, but it seems to be software rather than hardware.

haste75 said:
I only have one option under that test, which is to see a yelow line. It doesnt detect more than one touch at a time though.
I have downloaded a seperate screen testing app, and that detects up to ten points at once - again without any obvious issues with unresponsive.
I really can only reliably replicate the issue when playing games.
Click to expand...
Click to collapse
I don't play games on the phone, but did try Modern Combat 3/4, which I have purchased long time ago, just to try them out. So I have played last night and have not had touch screen issues.

Yes I have noticed it, and it has at times been extremely frustrating, and 99% of the time I think part of my fingers holding the phone are touching the screen somewhere, each time I see this and adjust my grip the problem is not longer there. I think this also is partly related to the thread about ghost touches.

AlanJC said:
I notice this issue all of the time in Ingress, however I have tried multi touch test apps and can easily get perfect tracking with 5 fingers on the screen, so I am sure the multitouch and display is working fine, and I have no problems with Google Maps or Waze where similar gestures to tap on things, and two fingers to rotate and shrink/enlarge are used.
I have no idea what is causing it, but it seems to be software rather than hardware.
Click to expand...
Click to collapse
Yes exactly the same issue.
I agree I think it's software. Another strange thing is If I flip the phone around (So the headphone jack is now on the right, rather the left), and the game allows the screen to rotate, the issue goes away completely.
Such a strange bug.

Same thing here, and it happens very often. I ran all tests and it seems a software issue. Hope Sony solves it 'coz it's damn annoying.

Just discovered something else, in Ingress, it's always been dodgy with multitouch, however if I put the phone on the table or sofa and just touch the screen it's even worse.
Again using the same gestures in Google Maps it works fine.
I don't understand why not holding the phone would make a difference. I tried propping it up on the table to see if it was related to the angle, but still a lot worse when not holding it compared to holding it.

Never had it during games but during calls it kinda doesn't respond to touches properly.....weird.
I am facing too many issues with the Z3. First the camera quality, then the front bezel leaking light, then the 3G, now touch response. Duh!!! Should've bought the HTC M8 EYE.

No such issue for me so far at least.
Isn't the M8 Eye for China only?

I can't type for **** on my Z3 compared to my SIII. Taps don't register as quickly. Not sure what the heck is going on.

I can confirm that the latest firmware 23.0.1.A.5.73 released by Sony today, has fixed my issues with the responsiveness with the screen and games.

I hope I see that update soon. I can't wait to type quickly and double tap with no issues.

No issue with games but, typing is a chore, it keeps pressing the wrong keys like b for spacebar etc....

AlanJC said:
Just discovered something else, in Ingress, it's always been dodgy with multitouch, however if I put the phone on the table or sofa and just touch the screen it's even worse.
Again using the same gestures in Google Maps it works fine.
I don't understand why not holding the phone would make a difference. I tried propping it up on the table to see if it was related to the angle, but still a lot worse when not holding it compared to holding it.
Click to expand...
Click to collapse
I've been noticing this lately as well when using the phone when it's on a flat surface.
Sometimes pulling the notification bar down can take a few times.
While play Ruzzle, it's nearly impossible to spell a word unless you pick the phone up.
Was thinking it might be the way it detects your finger, as I normally use the tip of my finger when it's flat, and my thumb when it's in my hand.