Database Users

Touch screen problem ?

Hello, I bought a second hand prophet. But I have a problem with the screen : the screen does not respond exactly where I put the pen. For exemple, on the keyboard, if I put the pen on the "E" key, it is the "D" wich is pressed ...
This only happen in the middle of the screen. No problems on the top or the bottom of it.
Of course I tried to re-calibrate the screen many times but it does not solve the problem.
Does anyone know where does this problem come from ?
Thanks a lot !

hello
do the screen alignement , it helped for me
grtzzz
you can find this in settings___system ___ screen and choose align

Like I said, I already did the re-alignement. But it didn't solve my problem.

touchscreen problem
hello,
u can try to update the rom , maybe that could be a solution , you find it in the wiki of the prophet on how to do it
grtzzz
grey

dizzy33 said:
Hello, I bought a second hand prophet. But I have a problem with the screen : the screen does not respond exactly where I put the pen. For exemple, on the keyboard, if I put the pen on the "E" key, it is the "D" wich is pressed ...
This only happen in the middle of the screen. No problems on the top or the bottom of it.
Of course I tried to re-calibrate the screen many times but it does not solve the problem.
Does anyone know where does this problem come from ?
Thanks a lot !
Click to expand...
Click to collapse
Well it is very likely that your touchscreen is damaged but not your LCD. There is actually 2 portions to the screen which most ppl assume there was only one(well I did initially until finding out later when my screen broke and got it replaced). Anyway, if you've tried re-calibrating it and doesn't work..maybe your screen protector (if you do use one) maybe be at fault? Other than that, worse case scenario, it is your touchscreen that is physically damaged. FYI it is not really expensive to replace compared to the LCD part.
Speak to njbridges if you need to get it replaced.
http://forum.xda-developers.com/showthread.php?t=323981

I already upgraded the ROM to latest french version ... It didn't help in that.
Anyway, thanks a lot for your answers !

I had the same problem. Unfortunately it was a problem with the touch screen which was fixed under warranty.

the simply answer is
try to change ur screen protector, or just remove and re-put it on again
just try...

beer2nd said:
the simply answer is
try to change ur screen protector, or just remove and re-put it on again
just try...
Click to expand...
Click to collapse
Hello.
I tried to do that, because I had problems to align screen.
I changed the touchscreen with another from a broken LCD. But now all I can get is a white screen, then a sound (like the starting sound when you make a hard reset or remove batery) and after black screen again.
What can I do to bring it back.
I've noticed that the touchscreen had some white glue where is the connection with the LCD. Do I need to replace that glue, maybe is a special glue with small voltage conductibility ? Or ? Help!
Anyone changed the touchscreen ?
PS: I think I will start a new post, maybe I will get some answers!

i haved thar problem... like you.... i just bought an ney TOUCH SCREEN new... and it was solved.... ATENTION only the touchscreen... not the lcd!

P4k1t0 said:
i haved thar problem... like you.... i just bought an ney TOUCH SCREEN new... and it was solved.... ATENTION only the touchscreen... not the lcd!
Click to expand...
Click to collapse
When you buy a new touch screen you buy with some conectors or only the plastic rectangle ?

saxxen said:
When you buy a new touch screen you buy with some conectors or only the plastic rectangle ?
Click to expand...
Click to collapse
well... i have to cut with a scissors the conecters to conect right on lcd screen... and it worked

P4k1t0 said:
well... i have to cut with a scissors the conecters to conect right on lcd screen... and it worked
Click to expand...
Click to collapse
When you say cut it means that a part of the conectors still remain on the touchscreen (under the touchscreen). Or no conectors at all on the touchscreen and that means you removed the connectors (pulled out).
Do you know if I have any chance to take another touchscreen from a defect device and work ?

Touch screen doesn't function

I need your advice...
My Touch Screen doesn't function, I cannot dial out, Faulty LCD or Touch Screen (or both), While I click on the screen it doesn’t respond or it has a shift, I click on the top of the screen and it actual click on the middle of the screen.
I have no problem with the display - it display everything and correctly with full color.
What I think is that I have a problem with my touch screen.
Did anyone had a problem with the touch screen and replace it?
What is strange, when I hrad reset the device, on screen alignment process I have no problem to click on the cross, but it takes the device up to 3-4 times to aligen the device.
I want to order the touch screen part and replace it, I don't have warranty.
Do I need to replace the LCD as well or just the touch screen? Either way it will be cheaper to buy them both then to send it to repair.

when the backlight is off...and you hold the phone 20 cm for your eye`s and turn a bit up and down in a room with light...can you see a oil film on the screen...???
that is the digitizer....sorry german english..

[email protected] said:
when the backlight is off...and you hold the phone 20 cm for your eye`s and turn a bit up and down in a room with light...can you see a oil film on the screen...???
that is the digitizer....sorry german english..
Click to expand...
Click to collapse
First - thanks for your time and for your help.
Well I don't understand what do you mean by saying, "can you see a oil film"
When the backlight is off (black screen - the device is on stand by) - I can see only black screen and my reflection...

Sorry...my english...So look in that thread and you understand what i mean...
http://forum.xda-developers.com/showthread.php?t=475294
i have it send in repair because of warrenty...but on ebay...you can buy for 30 €
when the problem is that...but i dont know...i hope that is helpful

I don't have this oil or bubbles on my screen...

Hardware...Connector(cable)....Software(Rom).....did you flash it..??
Sorry i don`t know...
I hope you find it

I can eliminate the software, I try to flash it with several roms and radios, include the origanl HTC shipped rom.
Well I ordered the LCD+Touch screen, waiting for this parts and then I will see.
Thanks for your help

i have similar problem but my screen is decentered just few milimerts
i sent it to waranty check twice but it came back that no problems apear
when i center display it its ok but max for 1 day or even less
so im currious if changing LCD will help ...

kobein said:
so im currious if changing LCD will help ...
Click to expand...
Click to collapse
I will let you when I will replace the Touch Screen with or without the LCD.

This should help........did this a few months ago, all working fine with no problems.
Check this out....
http://forum.xda-developers.com/showthread.php?t=392301&highlight=digitizer

ProvRobbie said:
This should help........did this a few months ago, all working fine with no problems.
Check this out....
http://forum.xda-developers.com/showthread.php?t=392301&highlight=digitizer
Click to expand...
Click to collapse
I ordered from the same store "keep_beauty", and they already shipped it, I looked in your recommendation and his guide.

Some help trying to fix a Motorola Defy?

Hello, I have a Motorola Defy, that I dropped a few times, so the LCD screen got damaged with blue dots on it, I made a mistake and thought that the problem was on the touch Screen, so I purchased a replacement, installed but, it was damaged, the touch did not respond correctly, I wasn't able to type correctly among other problems.
I got a refund, then ordered a LCD screen replacement, now that I have it here, I install it, and it's broken:crying: I know, bad luck and being a rookie while trying to fix my phone, ok, I put back my old (damaged) LCD screen to use it in the meantime, and the old touch screen, but now, the old touch screen that was supposed to being working fine, it doesn't, it has the same problem as the touch screen that I bought.
Question is: the problem with the touch screen, could be related to the damaged LCD screen? or the motherboard of the phone is damaged? the phone works great, the apps, the games, everything but the touch screen and the LCD screen, but, as I said, I went back to the default touch screen after using the damaged one that I received, and it works worse I don't know what's wrong, please help me out, sorry for the long post

Please post questions in the Q&A section. Moved there.

Put it in the freezer for 1-2 hours
Sent from my MB525 using xda app-developers app

ppero196 said:
Put it in the freezer for 1-2 hours
Sent from my MB525 using xda app-developers app
Click to expand...
Click to collapse
Is this true?

true. fix some minor dead pixel if you put in freezer for one day. but your case... im dont hope much.

Try changing LCD + Capacitive Digitizer. (after trying the freezer trick ofcourse)

Well i will tell my story, which is related to your's as well,
i had a phone with resistive touch screen and it got screwed up, that is it does not respond correctly. So, i took it to the service center and they replaced the digitizer (touch screen) saying that previous one is broken. But, luckily the new one didn't responded to any touches they make.So, they replaced it again with the old one quoting that "your phone can't be repaired". So, i took it home with me.
Later i thought to calibrate the screen but the old one is not responding any more, no matter where i press
Later i calibrate it with the help of a software for windows mobile with the help of a PC. It took me to the calibration screen, from where i calibrated it, and voila, it worked... as good as a new one :victory:
long story short,
i think when you disconnected your digitizer, phones default values/drivers got messed up and are unable to find the new or the old digitizer you connect. I suggest you to go to the service center as these screens can not be calibrated.

Is there NO WAY at all to recalibrate the screen from the phone itself? or using an application? the delicalibration might be the problem....I'd like to fix it myself :/ thanks for the tip, never heard about it before!!

saman0suke1 said:
Is there NO WAY at all to recalibrate the screen from the phone itself? or using an application? the delicalibration might be the problem....I'd like to fix it myself :/ thanks for the tip, never heard about it before!!
Click to expand...
Click to collapse
Did you change the LCD and the Digitizer (both of em) again ?

dark_prince said:
Did you change the LCD and the Digitizer (both of em) again ?
Click to expand...
Click to collapse
I replaced my original digitizer screen for the one I ordered it, it gave me problems, so I went back to the original one, which was working fine, and now it's not fully responding, that's why I'm assuming is something calibration related, thanks!

help
my search button back light is not glowing ..i saw it is also not glowing in recovery...any help

Touchscreen doesn't work on 1cm band

Hi,
My N4 fell today, and unfortunatly, since then, there is a 1cm high band, which takes all the screen on horizontal, that doesn't react to any touch. There is only this band that is "dead", all the screen is working. I flashed the rom again, just to be sure it was not a software problem, but it didn't change anything.
So, is there any way to fix it ? DO I have to buy a new LCD screen ? Is it a problem with the motherboard ?
Thanks for your help

AutruiP said:
Hi,
My N4 fell today, and unfortunatly, since then, there is a 1cm high band, which takes all the screen on horizontal, that doesn't react to any touch. There is only this band that is "dead", all the screen is working. I flashed the rom again, just to be sure it was not a software problem, but it didn't change anything.
So, is there any way to fix it ? DO I have to buy a new LCD screen ? Is it a problem with the motherboard ?
Thanks for your help
Click to expand...
Click to collapse
Very common problem. Unfortunately its not software, Its hardware problem,
Your phone's digitizer is not working. You need to replace the screen. Costs around US 90-100$

Sadly, that's what I thought it was... So I'm going to buy the One Plus One... Thanks for your answer

LG G2: Screen Flickering

[HELP] LG G2 screen flickering
Hi everyone,
As the title said, i have been suffering for more than 4 days from Screen Flickering, i tried every possible solution in XDA but still out of luck, the issue happens with stock (rooted and none-rooted) ROM, AOSP, CM Roms, in recovery, download mode, even while flashing new Rom, my phone is out of warranty and i am afraid that this is not a Hardware fault as some people mentioned before, so a screen replacement may not be the right solution.
Any help would be appreciated.

Please anyone can help!

S!LeNT J0cK3R said:
Please anyone can help!
Click to expand...
Click to collapse
Can you boot your phone? What does the screen flashing look like? Colors?

Damaged connector for LCD (flex cable or LCD), i had flickering and glitching because these two were damaged

Mashed_Potatoes said:
Damaged connector for LCD (flex cable or LCD), i had flickering and glitching because these two were damaged
Click to expand...
Click to collapse
Ah alright, well glad you figured it out! Good luck fixing it!

Mashed_Potatoes said:
Damaged connector for LCD (flex cable or LCD), i had flickering and glitching because these two were damaged
Click to expand...
Click to collapse
So you think this is not screen related, because i don't want to spend lot of money to change my screen and have the same issue

Mashed_Potatoes said:
Damaged connector for LCD (flex cable or LCD), i had flickering and glitching because these two were damaged
Click to expand...
Click to collapse
S!LeNT J0cK3R said:
So you think this is not screen related, because i don't want to spend lot of money to change my screen and have the same issue
Click to expand...
Click to collapse
Well it depends, it probably is a hardware issue but I don't know if you've accidently changed some settings under devloper options. There are some settings in there that cause the screen to flash. If you can boot up and check the settings, read through them and see if you have accidentally clicked any of them.

S!LeNT J0cK3R said:
So you think this is not screen related, because i don't want to spend lot of money to change my screen and have the same issue
Click to expand...
Click to collapse
You could try changing the flex cable, its a cheaper part. (20$-30$)

bigdaddysmallmomma said:
Well it depends, it probably is a hardware issue but I don't know if you've accidently changed some settings under devloper options. There are some settings in there that cause the screen to flash. If you can boot up and check the settings, read through them and see if you have accidentally clicked any of them.
Click to expand...
Click to collapse
Bro, this issue is happening to me even on a fresh stock Rom (4.4.2 and 5.0.2), even on recovery or while flashing a new Rom the screen keep flickering, so i's absolutely not software related.

S!LeNT J0cK3R said:
Bro, this issue is happening to me even on a fresh stock Rom (4.4.2 and 5.0.2), even on recovery or while flashing a new Rom the screen keep flickering, so i's absolutely not software related.
Click to expand...
Click to collapse
Alright well I asked earlier exactly when it was happening and you didnt answer so I was just guessing, but if you know it's hardware try the cable replacement

Mine got that problem too. I had to put some pretty thick (about 1mm) double-sided tape between both 2 display (I guess) connectors and plastic screwed shield.
It's my third day without flickering screen since the fix.
I hope it'll help