Asus TF201. Problem with touchscreen - Asus Eee Pad Transformer Prime

I replaced my broken touchscreen on this device. But there was a serious problem, when i touched the screen on the right side, click on the left side works. Up and down working properly. It came out as a mirror image of tapping the screen to the left detergents. Seems to be calibrated, but I could not find it in the standard settings. Tell me how to fix it?

I'ts video youtu.be/XUN_0q5I4ng

mihaylov-stas said:
I replaced my broken touchscreen on this device. But there was a serious problem, when i touched the screen on the right side, click on the left side works. Up and down working properly. It came out as a mirror image of tapping the screen to the left detergents. Seems to be calibrated, but I could not find it in the standard settings. Tell me how to fix it?
Click to expand...
Click to collapse
Looks like there are two different digitizers for TF201 so it's probably you have the wrong one for you device. More info: http://forum.xda-developers.com/showthread.php?t=1837997

Related

[Q] Inverted response from digitizer

Hi,
I've tried a number of firmwares Europe/Asian/T-Mobile and my local Telstra Rom. But no success.
I replaced my smashed digitizer and LCD the other day, however everything works great, the touch response is inverted - Left to Right. All touches on the left side are responding as if I'm touching the right side of the screen. Everything in the middle is fine obviously but from there it's mirrored.
It's quite possible that because the digitizer was bought from the USA and its in a Telstra (T8697) phone, it's somehow incompatible.
By bootloader is stating the TOUCH is C1(v66)
Does anyone think they may have a solution to this? a Registry edit or some kind of Screen calibration?
Cheers for any help.
BTW - The digitizer capacitive buttons are also mirrored i.e. Back is Search and Search is Back.
This digitizer also has a circle around the Windows (Start) button. My old screen didn't have this..
same problem
Hi gauge41,
I have the same problem :crying:. Do you have a solution ?
I bought my touchscreen on uk by ebay.
Reference:
cgi.ebay.fr/NEW-DIGITIZER-TOUCH-SCREEN-LENS-FOR-HTC-7-MOZART-T8698?item=270791784120&cmd=ViewItem&_trksid=p5197.m7&_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D5%26po%3DLVI%26ps%3D63%26clkid%3D5080495740069852992
All updates have been done through Zune software without changes.
Best regards.
gauge41 said:
Hi,
I've tried a number of firmwares Europe/Asian/T-Mobile and my local Telstra Rom. But no success.
I replaced my smashed digitizer and LCD the other day, however everything works great, the touch response is inverted - Left to Right. All touches on the left side are responding as if I'm touching the right side of the screen. Everything in the middle is fine obviously but from there it's mirrored.
It's quite possible that because the digitizer was bought from the USA and its in a Telstra (T8697) phone, it's somehow incompatible.
By bootloader is stating the TOUCH is C1(v66)
Does anyone think they may have a solution to this? a Registry edit or some kind of Screen calibration?
Cheers for any help.
BTW - The digitizer capacitive buttons are also mirrored i.e. Back is Search and Search is Back.
This digitizer also has a circle around the Windows (Start) button. My old screen didn't have this..
Click to expand...
Click to collapse
I've read somewhere, that there are two modifications of a touchscreen for mozart and they are not compatible, so if your previous digitizer didn't have a circle around windows button, but new one does, mirrored input is definitely because of that. Haven't heard of any registry tweaks to fix that, and I don't think you can fix it by installing different rom. You should probably get a compatible digitizer replacement or try installing different touch screen drivers.

[Q] 1/3 screen doesn't respond to touch.

After a waiting 2 months to get the tablet fixed in the US (and 40£ spend on postage) the battery on my touchpad was fixed.
Was very happy to see it rendering something again until I've noticed that 1/3 of the screen doesn't work when I touch it.
And it's consistent. If I move it around to portrait and landscapte modes the same area doesn't work.
The device fisically doesn't look damaged. And the image looks ok even on the area that doesn't respond to touch.
I don't think this is a software issue but I don't want to send it back to the states and spend another 40£ and two months to get it fixed without trying other options.
Can anyone help me to try out some other things?
If this is because some connector to the screen is not attached is it possible for me to open and fix it myself or does this prove that the hole screen needs to be replaced?
Thanks.
what is fisically?
psp888 said:
what is fisically?
Click to expand...
Click to collapse
physically

Right side of screen unresponsive to touch

I noticed today when i woke up i cannot press the right side of the screen and get any kind of response. It is only about a thumbs with of the right edge but this prevents me from being able to hit send on text messages on the default messaging app and also on go sms as the send buttons are in the same general location. Is my phone just FUBAR or is there some way i can resolve the issue. Have tried power cycling and thats about it. I guess i need to know if this is a software issue or a hardware issue and if there is any way to find out and fix the problem.
I've been having the same issue actually. In the bottom right corner, anyway.
Like when I go to attach a picture to a text message, I have to hit the text box first so the paperclip button is out of the corner. I've also had some trouble unlocking with the camera or touching it from the Navbar, where it's positioned in the bottom right corner. :/
Murasakiii said:
I've been having the same issue actually. In the bottom right corner, anyway.
Like when I go to attach a picture to a text message, I have to hit the text box first so the paperclip button is out of the corner. I've also had some trouble unlocking with the camera or touching it from the Navbar, where it's positioned in the bottom right corner. :/
Click to expand...
Click to collapse
I have similar issues with that when my phone is plugged in. And my acreen often locks up kinda with the last image on the screen being the only thing you see until you reset.
Ciloteille said:
I have similar issues with that when my phone is plugged in. And my acreen often locks up kinda with the last image on the screen being the only thing you see until you reset.
Click to expand...
Click to collapse
I don't think I've had an image stuck to my screen yet. I have this problem even if it isn't plugged in, which is really strange. Not sure why it's so unresponsive, takes several tries to unlock/select.
And kudos for being in Portland too! :good:
Have either of you found a consistent way around the problem or a way to resolve it? Also are you running the phone in the base state that you bought it in or is it rooted / unlocked?
I just tested my phone, by opening the browser to google.com (mostly white background), all around the edge of the screen. And I can see feedback animations for all my touches around the edge of the screen. So I don't think there is any problem with the touch digitizer, at least on my phone. Phone is still stock, rooted and TWRP.
I have touch animation when I touch the bottom right corner on the lockscreen, but it doesn't always drag/ripple out. Sometimes it acts like I've pulled my finger off so I have to do it again.
Rooted, unlocked, stock.
After touch responsiveness got increasingly worse i contacted AT&T and they are sending me a free replacement since these issues seem to be covered under the one year warranty. Just throwing that out there in case anyone else gets as frustrated with the problem as I have and cant find a permanent fix.
I can confirm that I am having very similar problems... it is getting worse.
I am stock rooted and unlocked.
It is getting harder and harder to press things, fling actions (like scrolling through a list) hardly move a thing.
I just installed a multitouch visualizer and whenever I have 2 fingers on the screen and then go to cross them (start with fingers in opposite corners, move one up and the other down until they pass each other in the middle) it actually loses both fingers and then sometimes only one pops up again on the screen.
Can anybody try an app like this Play Store Link.
I've had similar results with 2 other multitouch testers.
Is it my phone, or everybody's?
----EDIT-----
Figured I would install the Base ROM (7.0>7.3) because either it was a software issue and maybe the ROM would fix it, of it was a hardware issue (I really didn't think it should be acting like that) and I would try to get it replaced.
The Base ROM fixed my issue (for now, fingers crossed).
Now using a multitouch visualizer, the contact points are always seen, even when the fingers cross.
Don't know what caused it, but it was software (at least for me).
----EDIT----
Just plugged in the charger again... now the touchscreen is acting strange again... this phone does strange things when plugged in...

Touchpoint works "mirrored"

Basically - if I am touching the screen on the left the TF201 reacts on the right, exactly the opposite side of the screen. I have reset the device, no luck. Googling for recalibration didn't help me to succeed either. When working with the pad on the dock, everything is fine, it the touchpoint which is not working ... Does anybody have an idea?
Gigaherx said:
Basically - if I am touching the screen on the left the TF201 reacts on the right, exactly the opposite side of the screen. I have reset the device, no luck. Googling for recalibration didn't help me to succeed either. When working with the pad on the dock, everything is fine, it the touchpoint which is not working ... Does anybody have an idea?
Click to expand...
Click to collapse
Are you unlocked?
any custom roms installed?
Gigaherx said:
Basically - if I am touching the screen on the left the TF201 reacts on the right, exactly the opposite side of the screen. I have reset the device, no luck. Googling for recalibration didn't help me to succeed either. When working with the pad on the dock, everything is fine, it the touchpoint which is not working ... Does anybody have an idea?
Click to expand...
Click to collapse
Did you buy the prime new? It sounds to me like you have bought a second hand one and they had replaced the screen with one from china which has the axis reversed. If you then had flashed a new rom you would have lost the edited kernel to make it go back the right way.
I have never heard of a screen reversing axis otherwise.
Any way you could post a video of this?
It happens when you replacing glass digitizer of the tablet with wrong version of digitizer(I have same problem)
Search here on forum fix inverted x-axis, also you will need to be unlocked, and rooted.
Sent from my HTC Sensation XL with Beats Audio X315e using xda app-developers app
I have something likely
Mine got the mirror two but it happenned at the touchpad.
My touchpad works fine but when scrolling , it acts mirrorred.
Do your means that?

Touchscreen issues

Hey guys,
I got my Redmi note 2 yesterday and I'm having trouble with the touchscreen. sometimes it seems to be perfectly fine and sometimes it doesn't react properly. It seems to be worse in the right half of the screen. Sometimes I start scrolling and it works fine in the beginning, then the screen stops detecting my finger and when it detects it again, it opens the thing that my finger is on instead of scrolling.
I'm not sure if this is a hardware of a software bug.
Would calibrating the screen help? If so, whats the best way to do that?
I would usually try flashing a clean stock rom (the one it came with has some bloatware anyway) and test if that resolves the issue, but that's probably not the best idea if I decide to return it.
thanks for your help
alkoy said:
Hey guys,
I got my Redmi note 2 yesterday and I'm having trouble with the touchscreen. sometimes it seems to be perfectly fine and sometimes it doesn't react properly. It seems to be worse in the right half of the screen. Sometimes I start scrolling and it works fine in the beginning, then the screen stops detecting my finger and when it detects it again, it opens the thing that my finger is on instead of scrolling.
Click to expand...
Click to collapse
Try entering in the MTK Eng. Mode, then go to Hardware Testing->TouchScreen->HandWriting and try drawing some lines crossing the point where the problem occurs.
A friend of mine had a Nexus 5 with a malfunctioning touchscreen, doing a similar test we noticed that there was a full horizontal line where the touch were not detected so every vertical line we were trying to draw were broken on the point where the bad line were crossed.
Obviously in that case it was an hw fault.
EDIT:
Reading your post again, it seems a behavior caused by lag, so maybe it's a sw problem and not an hw one, especially for the fact that "it opens things instead of scrolling".
Does it always happen in the same point/area? Or is it totally random?
gnazio said:
Try entering in the MTK Eng. Mode, then go to Hardware Testing->TouchScreen->HandWriting and try drawing some lines crossing the point where the problem occurs.
Click to expand...
Click to collapse
I already did that and the results are very inconsitent. When I first tried it, it started drawing a line as it should, then it stopped and started again half a centimeter later, then it stopped again, and it pretty much went like that from top to bottom of the screen (at least on the right side of the screen, the left side worked better).
When I did the same test again, it didn't even draw lines, it just highlighted a few single pixels along the way that my finger was traveling.
And currently everything works perfect and smooth as it should.
It does kind of feel like a software-thing, but in my mind (correct me if I'm wrong) that should affect the complete screen equally and it just doesn't. I tried pulling down the notification bar earlier, from the top right of the screen and it just didn't work. I did a few tries and nothing happened. Then I tried pulling it down from the top left and it worked fine.
As I said it works fine at the moment, but I guess I'll make a few screenshots and a video of the problem, when it occurs again.
Ok, so the problem came back and I was able to do some more testing and make a video (sorry about the shabby quality, but it'll have to do ).
youtube . com / watch?v=rKsponNr9lA
As it turns out, the whole screen is affected equally, so I'm pretty confident that it's just the software but I'd still like to hear a second opinion.
The thing that kinda throws me off is that the reboot didn't help at all...
So what do you think? Is it just buggy software?
I'd try contacting the seller and explaining him the problem.
Maybe he will ask you to flash a new rom to be sure that it's a hardware problem and not something that could be solved without a replacement. That's what happened with my first phone from China.
If not, you could ask him and I think he will authorize you.
gnazio said:
I'd try contacting the seller and explaining him the problem.
Maybe he will ask you to flash a new rom to be sure that it's a hardware problem and not something that could be solved without a replacement. That's what happened with my first phone from China.
If not, you could ask him and I think he will authorize you.
Click to expand...
Click to collapse
sounds like a good idea, I'll do that.

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