So my phone screen has been acting erratically after a drop. Clicks on buttons/icons by itself, makes its own calls when in the address book, I have a difficult time typing the right buttons... for example, if I push 5, i get an 8, or if I type 6 I get a three... sometimes there are dialog boxes I cant click on due to being in the middle of the screen..... Other positions on the screen work fine....
I did replace this broken digitizer with another one that had cracks, but the phone stopped acting erratically.. I just had the button issues... which I attribute to the cracked screen...
So my theory is that my digitizer broke, although no visible breakage lines/cracks... I get ready to order a new digitizer when some one tells me the digitizer does nothing more than the utilizes the 4 bottom buttons (home, menu, etc) and plays the role of the glass protector from the lcd. ... and that I need a new LCD... Not a new digitizer.....but I thought the LCD was nothing more than the display screen, as in a tv..... I thought all the input was done via the digitizer screen.. Am I wrong??? Did I miss the boat on the role of the digitizer and the LCD? Thanks!
http://www.ehow.com/info_12216600_digitizer-screen.html
What ROM are you using? I've found that many non-sense ROMs ability to sense your input can be glitchy and unreliable. Had this problem forever with CM7. Thought it was my screen or it was scratched, but after testing out a few sense ROMs, I've never had a problem since. And I've dropped this bad boy many a time.
Related
Hi,
a while ago, I cracked my Uni's LCD. So I ordered a new one including the digitizer, opened my Uni and swithched the displays. Now at times, the touch screen wouldn't work at all - unless I tap the upper left corner (the start button; in portrait mode) or the lower left corner (the left button or slightly above it; in landscape). After that, tapping everywhere works normally. Does anyone have an idea what this could be caused by or how to solve it?
Thanks in advance!
I'd make sure your contacts are very clean. If you think maybe they're not, then take out and clean contacts with dry cloth or contact cleaner and re-insert.
Also, make sure there's no debris around screen. That nothing is pressing on digitiser anywhere else that gives false postive for it.
enigma may be able to help you better, I think she's more accustomed to the HW
Generally, all touch problems are associated with a digitizer. Without actually seeing your device I assume your digitizer is faulty and the problem may be either improper adhesion or the soldering joint improperly formed. Adhesion problem may be resolved by warming the screen with a blowdryer, no need to get it hot, just slightly warm all over and smooth with a soft cloth as if you are applying a screen protector, it loosens the special sticky gel that attaches the digitizer to the LCD and usually helps in cases where sensitivity is sporadic or screen calibration returns wrong response. Check for any bubbling, although not seen when the screen is viewed directly, some may be noted at the angle.
However, in your case there are certain points that need to be pressed in order for it to work, so I take it, the screen works most of the time and the problem is intermittent, the corners that need to be pressed might be the ones where adhesion is not up to scratch.
Try re-assembly, if all fails - contact the screen supplier, faults can happen, especially in non-OEM parts.
Do keep us updated if you find the solution, I am sure all members can benefit.
Problem solved
Well over time, the situation changed so that the touch screen didn't work at all, unless I was pressing one spot above the LCD fairly hardly, at which time it worked without problems. Once I stopped presing the spot, it stopped working again.
So I tried opening the Uni and disconnecting and reconnecting the LCD FPC (which was located just under the spot that needed to be pressed), which seems to have solved the problem
I have hardware version 0003, the display works fine just the top glass got cracked, can someone point me in the right direction for a new digitizer assembly? I found one on amazon new for 24$ but have no idea if it will work for my phone.0002 vs 0003 I read have different ribbon cables.
Sent from my EVO.
When this happened to me, I couldn't tell that the LCD had also cracked. I bought the digitizer only, and when I took apart the phone, I realized that I didn't have the parts I needed to fix it.
I can tell you that the correct P/N for the Novatel screen is 2V6A, but I am not sure of the P/N for the Epson screen. Check which screen you have by adjusting the brightness.
If when you adjust the brightness it switches with a fade effect, then you have a Novatel screen and you need the 2V6S ribbon. However, if it switches quickly and suddenly from one brightness setting to the next without a fade effect, then you have an Epson panel and you need the other ribbon cable.
So, I know it's been posted a lot in other places but I couldn't find like, a definitive answer as to if there are different digitziers? Am I just confused?
I would like to try and just replace the digitizer and glass over top of the LCD, my LCD works fine, the cracks are really thin and only a few going across diagonally. It fell from maybe 2 feet off my lap onto a parking lot surface.
I understand there is two LCD pannel types like you said, but are there two digitizer types/sizes?! for that ribbon cable.
I'm completely comfortable with taking it apart, I'm just worried I'll get the wrong part and find out the screen is also cracked and have to end up not using it for days until new stuff ships.... bleh
I've found digitizer+glass on amazon for 24-30$.
How do I adhere it to the LCD though, says doesn't include anything to do that.
EDIT: Found this gem: http://www.durapowerglobal.com/HTC-EVO-4G-Digitizer-Adhesive-_p_1166.html
Adhesive wont be a problem I just need to know about the glass/digitizer
EDIT2:
OKAY, if you want to ignore all i've said so far here is my real question of what I need to know.
http://www.durapowerglobal.com/HTC-...iginal-With-Installation-Adhesive_p_1103.html
Is there only ONE digitizer/glass piece on any given HTC EVO 4G? Or is there two different types like the LCD?
I've searched and I can't find anyone else that has the same screen issue as me (they may have but without a picture I can't be certain).
Anyway, I was pulling stuff out of my gym locker yesterday and something knocked my Evo out. Of course it fell flat on the bench, thus causing the screen to become damaged. However, my "cracked" screen doesn't look like any of the other cracked screens I've seen online. My front piece of glass (the part your finger actually touches) remains intact and in great condition (I know I can still unlock the screen because I can feel the haptic feedback of the capacitive buttons), but it's like the screen behind it is what's actually damaged.
Is that correct? And what part would I need to order to replace it. Thanks
I believe that its the lcd
yep thats the lcd itself
Yep, sounds like your digitizer is ok, but your lcd is borked.
Thanks everyone. Will probably be picking up an EVO 3D, then selling my OG after I fix it.
Hi, I am in dire need of help...
I dropped my phone, broke the screen and swapped it out for a brand new one. During the swap I managed to make a very small crack at the edge of the new screen... Now the top 3/4 inch doesn't respond.
I find this very strange since when my screen was completely shattered touch worked normally, but now a small crack and it doesn't work? Does that sound normal? Could there maybe be any other underlying problems?
Any help or input would be appreciated...
Thanks
You clearly don't like your DHD and DHD don't like you
Joke.
Well, this surely sounds like interesting but as far as i know, you managed to break the connectors of touchscreen during the replacement. Touchscreen fails (although not completely) = you clearly need a new one, if it is even possible to replace. And about the thing, that this didn't happen when u dropped the phone is because it might only damaged it a little and it still worked, but when changing the glass, the damage extended.
The touchscreen is a layered device. When you shattered it you only broke the outside layer. Sounds like you broke another layer plus the outside layer this time.
Thanks for the replies guys.
Layered digitizer, didn't know that. That makes sense to me because the crack in my new screen isn't superficial (meaning I can't "touch" the crack, it's on the inside I guess).
Thanks again, I guess I'm buying a new digitizer and hope that works, sucks not being able to touch the top portion of the screen!
Hi, I have an issue that has formed after glass replacement on my Note 2. I was extremely careful in trying not to damage anything during the replacement process and I did not use excessive heat either, keeping the screen under 170 degrees F to loosen the cracked screen. The issue is that about half the time the phone touch screen will stop working during normal use and then when I hit the lock button on the right side and then unlock the phone again it will be ok for a while before it acts up again. So far, I have done a soft and hard reset with no luck. I noticed the problem is worse when the 12 small screws in the back of the phone are very tight, I loosened them all a few turns and this helped it act up less. The pen always works. I installed a multi touch testing app and this proves that something is up because it sometimes reads fingers that arent there, generally in the middle of the screen and sometimes this programs just completely flips out and reads fingers everywhere. So at this point Im guessing that maybe the replacement glass is too close to the LCD? It also does seem to be negatively affected if I bend the whole phone slightly, this also sometimes causes the touch screen to flip out of just quit altogether. Any input is extremely appreciated!
Is there supposed to be anything between the glass and the lcd when the glass is replaced? Sorry if thats a dumb question.