newly installed touch screen digitizer does not respond to touches. - Sony Xperia Z Ultra

Hi,
I cracked the screen on the Sony Xperia Z ultra. I bought an LCD screen and touch screen separately. I have installed both the lcd and the touch screen digitizer very carefully and correctly.
The lcd screen works fine however I cannot get the touch screen to work. There is no response to touches. I have not bonded them together or placed any tape between them. Is it possible the touch screen is faulty or does it have to be bonded to the lcd screen? What I am missing here.
Thanks,
Rob

hello, I have the exact same problem, have you found a fix?

Solved:
rob54321 said:
Hi,
I cracked the screen on the Sony Xperia Z ultra. I bought an LCD screen and touch screen separately. I have installed both the lcd and the touch screen digitizer very carefully and correctly.
The lcd screen works fine however I cannot get the touch screen to work. There is no response to touches. I have not bonded them together or placed any tape between them. Is it possible the touch screen is faulty or does it have to be bonded to the lcd screen? What I am missing here.
Thanks,
Rob
Click to expand...
Click to collapse
Hi after trying everything with hardware and running out of options I decided to flash the stock rom again just to see what happens. When I booted everything worked. The touch screen behaves normally now. I guess some software must have been corrupted. It may not be necessary to flash the rom again, it may just require a factory reset. I didn't try this but it may suffice.
I hope this helps someone.
Rob

Related

[Q] Problem with Display

Cliffs Notes version:
Broke the glass on my Rezound but the digitizer and LCD were working fine. While replacing the glass I broke the LCD, so I bought a replacement from ebay.
Now the new LCD will turn on to show the initial HTC screen and then it goes blank...no backlight or anything else on display. I can boot into hboot and fastboot. When I try to boot into recovery I get the blank screen. Did I get a bad LCD, or is there more to it than that? I managed to find the broken LCD and it has similar behavior, so I'm worried I may have broken something else on the board while replacing components
lpadd said:
Cliffs Notes version:
Broke the glass on my Rezound but the digitizer and LCD were working fine. While replacing the glass I broke the LCD, so I bought a replacement from ebay.
Now the new LCD will turn on to show the initial HTC screen and then it goes blank...no backlight or anything else on display. I can boot into hboot and fastboot. When I try to boot into recovery I get the blank screen. Did I get a bad LCD, or is there more to it than that? I managed to find the broken LCD and it has similar behavior, so I'm worried I may have broken something else on the board while replacing components
Click to expand...
Click to collapse
make sure the rainbow cable isnt pinched anywhere and that it's plugged in 100 completely, ive had this happen to me when i first started to take apart phones with the Inc. even if it's a slight angle it will not make a good enough contact.

[Q] screen not working probably

hi the touch screen will not work probably it does work sometimes if i press hard & move my finger around the colours on the lcd are fine is this the case that the Touch Screen Digitizer is broken will like to know so i know what to replace thanks in advance

Cracked screen - solution?

Hello people!
I just dropped my phone display first into the floor.
The only visible damage is a tiny arced crack at the right edge of the screen, but that was enough to screw up the whole touch screen because the phone seems to activate touch around the crack, which leads me to my first question:
1 - Is there a way to disable part of the touch screen?
I can live without touch in the area of the damage, just not without any working touch
2 - Is there a way to hardware test using a PC to evaluate the extent of the damage?
3 - Do I buy just the screen, the screen + LCD or screen + LCD + frame?
4 - How do I know which OEM of Ebay to buy? Can I trust the ones saying it's an original Sony Screen + LCD?
Thank you for taking the time to answer these questions. I do believe there are more people out there with same or very similar questions.
HI,
I had craked my z2 screen twise
in my experience u need to replace the whole LCD screen .
i had craked my Z before, but for Z , the crak didnt affect other parts , you can use the phone , but for z2 no hope.
munte89 said:
Hello people!
I just dropped my phone display first into the floor.
The only visible damage is a tiny arced crack at the right edge of the screen, but that was enough to screw up the whole touch screen because the phone seems to activate touch around the crack, which leads me to my first question:
1 - Is there a way to disable part of the touch screen?
I can live without touch in the area of the damage, just not without any working touch
2 - Is there a way to hardware test using a PC to evaluate the extent of the damage?
3 - Do I buy just the screen, the screen + LCD or screen + LCD + frame?
4 - How do I know which OEM of Ebay to buy? Can I trust the ones saying it's an original Sony Screen + LCD?
Thank you for taking the time to answer these questions. I do believe there are more people out there with same or very similar questions.
Click to expand...
Click to collapse
diz_007 said:
HI,
I had craked my z2 screen twise
in my experience u need to replace the whole LCD screen .
i had craked my Z before, but for Z , the crak didnt affect other parts , you can use the phone , but for z2 no hope.
Click to expand...
Click to collapse
in this case no, Z2 LCD display is seperateed from the glass
you can weirdly find glass and screen put as one but thats some sort of odd scam :/
Envious_Data said:
in this case no, Z2 LCD display is seperateed from the glass
you can weirdly find glass and screen put as one but thats some sort of odd scam :/
Click to expand...
Click to collapse
Thank you so much for giving me the answer I wanted to hear. Unfortunately I can't find any videos on how to do this for the Z2. Have you done it? I'm curious to know whether the display is allover glued to the digitizer as in the case of the Z1 or if it's just glued around the corners of the screen as in the M2. Mind you that this is simply observations I've made from watching youtube videos, so the above mentioned information might not be correct.
man, u cannot separate the display and digitizer . its a single glass. for Z2. u need to replace the single glass
You could try finding parts from aliexpress, try looking through the feedbacks before ordering.
Or if you are not too bothered by the cracks you could just put on a screen protector or a tempered glass screen protector.
Try going into youtube and search witrigs for teardown and repair videos.
Wish you good luck! ?
http://www.etradesupply.com/sony/al...-lcd-screen-and-digitizer-assembly-black.html
or you can buy from here
Hi guys,
My Screen cracked, i order a new screen. I install it right with instructions. LCD screen works about 1 minutes, but now the phone has so called ghost touches.
What might be a problem? LDC-screen is broken?
Envious_Data said:
in this case no, Z2 LCD display is seperateed from the glass
you can weirdly find glass and screen put as one but thats some sort of odd scam :/
Click to expand...
Click to collapse
Yeah!
I did take a chance and purchased a new glass without display. Good news is I never got an opportunity to use it, so I might be able to return it. Bad new is I'm now buying a front glass and lcd.
Even though it might technically be possible to just exchanging the front screen, I would say it's highly improbable that you will successfully do so.
Judged by my level of technical tinkering, I would say that a vast majority of the people in this forum will probably fail in exchanging front glass without exchanging lcd.
I'm not saying this to put anyone down, but I'm giving you the advice I wish I would've gotten before getting over-confident.
So for goodness sake,
BUY FRONT GLASS+DIGITIZER+LCD, and save yourself both time, headache, and possibly money
Hi, i'm waiting for my Z2 replacement screen and i have a question for those who have changed it, does the sensitivity of the touch screen is the same like the original? I mean the option that you can use the phone with gloves...
Thanks!
How much did it cost u, repairing the screen

New LCD Screen Touch Malfunction

My Dear friends, I got a Xperia XA Ultra from a friend, display was damaged. So I purchased a New Display with Touch from a Local Shop, but i noticed touch is not working properly, ghost touch on top and bottom of the display. Then i went to the shop and asked for a replacement LCD and they gave me another new LCD. I checked the lcd at shop with the sony *#*#service#*#* code.. and all the touch screen tests were Pass. But after i came back to home and used the phone for 2, 3 hours and again suddenly ghost touch started on top, bottom.
Anybody had same issue like me??? If yes, what is the solution????
Also i want to know Is there any Touch control IC or chip on the phone Motherboard that cause ghost touch????
Please help me regarding this issue.
Thank you.
bump.. anyone???

z3c digitizer wrong density after repair

Hi All,
Here is the issue. xperia z3 |compact needed a new screen after a fight with a car. I bought replacement and installed. However, although the image is good and the digitizer responsive, if I touch the screen centre ('show touch' is on) the touch and screen response line up but further out from the centre, the more out of alignment the touch and response is. It is as if the 4.6 inch digitizer has 4.3 inch firmware in it. Have factory reset and tried calibration apps. Is there a way to tweak this, perhaps by an Input Device Configuration file (*.idc) or to force Android to change the touch position via an app?
I very carefully installed this screen to be waterproof, so I am loathe to start again with a new screen if I can avoid it.
Any help most welcome

Categories

Resources