[Q] Touchscreen not working - Samsung Galaxy Exhibit 4G

Alright so my sister dropped her exhibit (with a case on) on some bleachers. The screen is perfectly fine (no cracks at all), but the touchscreen is not at all working? What's wrong with it!

digitizer might be messed up....google will lead you to some replacements and a video on how to change it

Related

white screen after fixed touch screen :(

Hi, i'v got a problem. I tried change my digitizer and, when im done, now lcd doesn't work, because it is still white...:/ What can i do now? any solutions?
Thanks a lot
Check your connections. Pull apart and re-seat everything to ensure everything is hooked up good.
everything is fine :/ still white screen
Perhaps you zapped or damaged the LCD when you were working on it...
You could try replacing the LCD too -- but at this point I think I would send it to the professionals
HTC repair or someone like PPCTechs
Don't know if the screen set up is still the same. But when I replaced the screen on my Universal the wiring for the touchscreen was stuck down onto the lcd wiring, as they both shared common earths. Maybe worth a check before spending more cash?
i have the same problem, the screen was working fine before i replaced the new digitilizer and now its just white but i can hear the tablet playing so it must be the screen.i checked all the wiring 4 times now! any idear???
:crying:
Slide the phone open and apply some pressure near where the angle of the opening is (back of the LCD below the SIM, where there is a bar). I had the same issue and this fixed it.

Touch faulty

Hi,
the other day I dropped my Kaiser on its screen and it cracked . I ordered a new one and fitted it from a guide on youtube. Everything seems to work fine except the screen is totally unresponsive to touch. I guess this just means its nackered - something broke inside, but seeing as the new screen had a new touch part built into it and everything else still works, I thought I'd ask if anyone had any suggestions on the off chance.
Thanks
If you're certain there was also a digitizer, check the connection. I haven't done a Kaiser screen, but I had to reseat the ribbons on my Excalibur more than once before everything kicked off.

Cracked screen - need digitizer?

I have a Galaxy Captivate from a friend who has dropped it and shattered the screen. The bottom 4 touch buttons light up when the phone is powered on, he claims that there was a very faint image on the screen but so far it hasn't displayed anything for me.
Is it likely that a touchscreen + digitizer can fix this, or is it likely that something else is wrong with the phone? The touch buttons lead me to believe that I may be able to replace the screen + digitizer and have it work again =/
Opinions?

[q] how does the screen work?

my galaxy ace had dust under the screen. to remove it, i disassembled the phone. I removed the dust between the glass and the screen, assembled the phone again and booted it up. But know the phone does not respond to any touch.
to find out what the problem is i'd like to know how the screen works. I believe that when I touch the screen, this is sent from the front glass to the 'phone', which makes the screen show the according view. So when the screen does not respond to me touching the screen i'd have to look for a new glass or could there be another problem?
i''ve cleaned the screen with lcd screen cleaner (on both sides because there was a fingerprint on it on the back side). I don't know if there was some sort of layer on the glass which could be removed by this cleaner, which actually would be essential for the touch function.
i hope someone can help me. I'd like to use this ace for a longer time...
DutchArjo said:
my galaxy ace had dust under the screen. to remove it, i disassembled the phone. I removed the dust between the glass and the screen, assembled the phone again and booted it up. But know the phone does not respond to any touch.
to find out what the problem is i'd like to know how the screen works. I believe that when I touch the screen, this is sent from the front glass to the 'phone', which makes the screen show the according view. So when the screen does not respond to me touching the screen i'd have to look for a new glass or could there be another problem?
i''ve cleaned the screen with lcd screen cleaner (on both sides because there was a fingerprint on it on the back side). I don't know if there was some sort of layer on the glass which could be removed by this cleaner, which actually would be essential for the touch function.
i hope someone can help me. I'd like to use this ace for a longer time...
Click to expand...
Click to collapse
http://www.youtube.com/watch?v=9gS5eE3j_ts
thanks! i've used that tutorial for replacing the broken screen my ace came with from my sister. I replaced it and then everything worked fine again. However ,after that screen replacement, there got dust under the screen which I tried to remove this afternoon.
The dust is gone, but the screen doens''t respond to anything now.
I'am wondering if i 'broke' the screen and I should get a replacement screen, or that i may have damaged the lcd screen (which is fine i think, it displays everthing perfectly). or maybe the glass is fine but some connector is defect (i've disassembled the phone again, checked everything and connected it again).

Backlight problem after replacement

Hello everyone,
I have got one problem... I broke digitizer of my HTC Desire 500. So I order new one and to be sure, also LCD screen. I replaced, and...
After turning on, everything works fine. Digitizer works properly, screen shows normal picture. But after few minutes - restarts (I don't remember well) backlight of my screen goes down and now it have no backlight at all. I rebooted phone many times, I remounted screen and digitizer to be sure that connections are fine - but no results. I restored factory settings of phone with no effect too. :/
Please help, what happend? What could be the source of problem? I don't want to order new sceen if it could beak too ;/ I read other threats about coil problem in other HTC, but I cannot find any coil in my Desire's motherboard (maybe it is hidden under plate that covers CPU and other parts). I performed tests of light sensor and it works fine. Buttons lights fine too. The problem refers only to LCD screen, and backlight doesn't respond during test.
Anyone help?
same situation
Hello kowal_luki,
I'm just in the same bad situation.
After a bad fall of the phone the screen broke so I ordered a new one for replacing it.
Opening the phone I noticed that also the LCD (and not only the external screen) was broke so had to order also the LCD.
As precaution tried to power-on my device without a complete assembly and everything seemed to be fine, so I decided to glue the LCD to the outer screen (the touch screen) with a LOCA TP-2500 glue.
Then I re-assembled it up: at first the image was a little bit disturbed but the back-light was working; after few second the back-light turned off. I checked the cable, after that the image went perfect but the back-light still dead.
Did you find a solution for this -still not explanable- problem?

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