Database Users

digitizer failure

well after 8weeks of my blackstone its decided to break, everything works normally but there is no response from the digitizer. the only thing i can see wrong is theres a patch where the digitizer and screen are making contact all the time (the screen is perfectly intact and no pressure has been applied at all) its a perfect square and about 3/4inch smaller than the screen. im not sending it back to htc, im going to repair it myself as i can have it sorted faster and im not that fussed about the warranty.
any ideas to the cause?
thanks
karl

Any water / liquid /sweat seepage?
You can look into this thread for service manual and some user experiences.

theres no liquid in there, its as if the digitizer is stuck to the screen

managed to repair it, what a pain it was, turns out that the top and next layer of the digitizer were stuck together, the hard part of the repair was seperating the digitizer and screen but after 15mins of fiddling and nasty names i did it and it looks immaculate, this being said i never want to have to do it again

Damaged digitiser?

Hi folks. I have damaged my topaz but I'm not sure if it's the digitiser or the lcd screen, so I'll describe what happens:
The touch screen will stop responding after I've been using it and if I turn off the screen I can see a small dark patch (where my finger last touched it) with some small tiny 'bumps' surrounding this dark area. If I gently rub the screen with a soft cloth or similar, this dark area disappears and the touch screen starts responding again. However, I am having to do this procedure a lot - I mean like every 10 or 20 seconds if I'm touching the screen a lot or dragging stuff around - heck, it's a 'touch' phone, I can't help but touch it !!!
A new screen is a lot more than a new digitiser, and I figured that since the digitiser sits on top (right ) then it may be this that is u/s ?
Any help, comments or diagnostic clues are much appreciated.
Cheers, peace
Chris

umm, can it be water between the screen and touch sensor layer? Have you brought the phone to highly humid places, or something like that?
Some photos will definitely help identifying the problem.

Sounds like this:
http://forum.xda-developers.com/showthread.php?t=522813
I had it, and my provider repaired it. Unfortunaly I have the problems again... but not that much. When its getting too extreme, I'll send it back once again

^ I'd say that's it, I did find another post with a photo of something similar too.
I think mine happened when my wee girl got a hold of the phone -
I'm still a little unsure as to what component is damaged tho. Maybe a little 'investigation' with a screwdriver is needed ...
Thanks for the replies so far
Peace

Using a screewdriver will defenetly kill your guarantee. Mine was repaired for 0€$ ... I would try this first, as you can still offer it back when they say u have to pay few 100€$.

[Q] Samsung Galaxy glass change fail need help!

Hi,
I recently changed the glass on my s4 the repair seemed sucessfull as the screen did turn on and the touch was responsive however 24 hours later the screen has gone blank but the touch is still responsive as you can hear sounds when you touch the screen. There are no visible cracks.
The method i used was a seperating machine and attached the glass with loca glue. So what can have gone wrong. Advise would be apreciated and is there anyway to get the display back on.

imr4n6 said:
Hi,
I recently changed the glass on my s4 the repair seemed sucessfull as the screen did turn on and the touch was responsive however 24 hours later the screen has gone blank but the touch is still responsive as you can hear sounds when you touch the screen. There are no visible cracks.
The method i used was a seperating machine and attached the glass with loca glue. So what can have gone wrong. Advise would be apreciated and is there anyway to get the display back on.
Click to expand...
Click to collapse
The glue you used could have been too liquidy and caused a short circuit. If that happened it's fried.
It's also possible that the connecting cable that powers the screen simple came loose because it wasn't put in properly. That is what you should hope for because it's a quick and easy fix.
If heat was involved in the separation or gluing process it could have damaged something that took a full day to finally fail as well.
It could just be a coincidence that it failed right after you changed the glass, but I would put that in the "Highly unlikely" category.
Your best bet is to take the unit apart and see if anything looks physically wrong. Start there.

Most likely it has shortened as i have replaced with new screen and it works. How can i stop the screen shortening again if i do a glass replacement. And is there no possible way to recover the shortened screen.

imr4n6 said:
Most likely it has shortened as i have replaced with new screen and it works. How can i stop the screen shortening again if i do a glass replacement. And is there no possible way to recover the shortened screen.
Click to expand...
Click to collapse
There are probably no ways to restore a screen that has shorted out. Electronics do not mix when with electrical shorts. It tends to fry things beyond repair.

replacement screen issue

hi everyone, I decided to replace the cracked screen of my n4, I ordered one with housing (much easier), I thought it s goona be an easy task giving I did it like five times with no problems, but I noticed at the end the screen was working but yellowish horizontal stripes appeared in the background, and I couldn't get rid of them, I dismantled and I reassembled it with no success, I couldn't find any satisfying answer on line. please any help to get my phone back to normal will be appreciated.

dihcar said:
hi everyone, I decided to replace the cracked screen of my n4, I ordered one with housing (much easier), I thought it s goona be an easy task giving I did it like five times with no problems, but I noticed at the end the screen was working but yellowish horizontal stripes appeared in the background, and I couldn't get rid of them, I dismantled and I reassembled it with no success, I couldn't find any satisfying answer on line. please any help to get my phone back to normal will be appreciated.
Click to expand...
Click to collapse
Have you contacted your vendor about a replacement?

If your old LCD still works connect that back up and check if it has the same problem, if not you know it's a problem with the new part.

DrFredPhD said:
If your old LCD still works connect that back up and check if it has the same problem, if not you know it's a problem with the new part.
Click to expand...
Click to collapse
Old one if dead, that's why I replaced it.
A and my phone was bought from Craigslist, no guarantee.
Anyway it seems like static, because it starts very strong but fades away without disappearing completely. I hope it's not the part.

bad part
Sounds like a faulty part to me. If reseating the connectors didn't solve it I'd inquire about swapping that replacement part for another.
One question though. It has yellowish horizontal stripes.. are they blotchy or are they uniform top to bottom on the screen? There's a possibility something isn't seated properly or a screw too tight or some debris caught in between that would but pressure on the LCD and cause the discolouration.

Electrospaz said:
Sounds like a faulty part to me. If reseating the connectors didn't solve it I'd inquire about swapping that replacement part for another.
One question though. It has yellowish horizontal stripes.. are they blotchy or are they uniform top to bottom on the screen? There's a possibility something isn't seated properly or a screw too tight or some debris caught in between that would but pressure on the LCD and cause the discolouration.
Click to expand...
Click to collapse
i don't think it's the part, because when i installed the first time the screen worked fine no yellow lines, but i had to reopen it a second time for some reason (i forgot what) and when i reassembled it the lines appeared for first time. since then they stayed there despite opening it and reassembling it many times. now i found out i have a proximity sensor issue when screen goes black during calls and speaker is not working at all.
so that's it for i'm done with nexus 4, it's pretty and well designed but troubleshooting is a b**ch!

[Q] Just a question about a cracked glass repair.

Hello all, I want to first thank you guys for your support since I've joined up! I recently attempted a glass replacement on a note 3. The digitizer and lcd were ok before I removed the glass. During the removal, everything went smoothly, no cracked lcd or digitizer. It was my first attempt, so I did scratch it here an there, but they weren't too deep. They were negligible enough that they would be made invisible by the new uv-glue. So, before I fully removed all of the old glue, I turned the phone on to see if the lcd still worked and it did, however, I noticed that the touch screen was mostly unresponsive. It only worked at the top where the notifications menu is. I was able to pull it down about a quarter inch and then it would go back up as if my finger left the screen. I chocked it up to a dirty screen and possibly even the scratches I made on it. I read that those things would "confuse" the digitizer. I also read that cleaning the lcd and replacing the new glass with uv-glue would fix any digitizer touch issues, by filling in the scratches for one and by making contact with my finger more accurate. Anyway, I installed the new glass onto the lcd with the loca glue. Everything was clean as far as I could tell. After reassembling the phone I discovered that the digitizer was doing the same thing as it was when it had no glass. And now, when I turn the screen on from it being asleep, I see a blur where the unlock symbol is for a couple seconds, as if my finger was there above it. Then it goes away and the screen doesn't recognize my touch. I checked to see if my other note 3 did that when I turned the screen on and it didn't, at least not until I did put my finger there. I did a factory reset on the phone, disassembled it again and cleaned all the connections with alcohol. Everything looks like it's set up correctly. Just wondering if anyone has any ideas that aren't "the digitizer is broken" lol. I realize that may be the case, but I'm not sure what I could've done for that to happen. This will be my last attempt at finding a different answer before I trash the lcd. Thanks in advance guys!

arstinince said:
Hello all, I want to first thank you guys for your support since I've joined up! I recently attempted a glass replacement on a note 3. ... This will be my last attempt at finding a different answer before I trash the lcd. Thanks in advance guys!
Click to expand...
Click to collapse
I presume you've been checking the sites for help & youtube videos on how to do it all? Can you think of anything you might have shortcut or done differently?
The fact the defect was there before the glass replacement suggests maybe there was either prior damage that you didn't notice before trying this, or you've perhaps moved the LCD in such a way that prior damage has become apparent. i.e. there was maybe hairline damage and as you moved things the edges moved apart.
Could it be something along the lines of the glue is a bit thick at one end so the screen is now not contacting properly? How much pressure did you use putting it all back in place? Did it take a lot to get it even?
Wish I could be more helpful but, it's not something I've tried. TBH I hadn't even released AMO screens COULD be removed from the glass...