Digitizer/Screen Problem - T-Mobile LG G2x

So my g2x front screen glass was broken. Replaced it with a new one and after reassembly and powering the phone on, its responding to all my touches but the screen is very distorted. It looks like a 90's crt tv going crazy, with the noise on the screen if you know what I mean.
Any ideas? Or did I just seat the digitizer wrong or the ribbon on the screen is off by a pin or two?

Try resetting the connections. If it's still like that it's a low quality digitizer and I would try to return it.
Sent from my LG-P999 using xda app-developers app

If the digitizer is responding fine then make sure there is nothing pushing against the LCD (anything between the LCD and digitizer) and the connections are seated correctly.
Eddie
Sent from my AT100 using xda premium

edekalil said:
If the digitizer is responding fine then make sure there is nothing pushing against the LCD (anything between the LCD and digitizer) and the connections are seated correctly.
Eddie
Sent from my AT100 using xda premium
Click to expand...
Click to collapse
Thanks for the replies. I cant find the rubber seperator thing could that be the problem? I looked at the LCD and nothing is in between it and the digitizer but it appears to be loose. All connections are seated correctly.
If the LCD was being pushed from the backside thats metal would that be a problem?

abccg said:
Thanks for the replies. I cant find the rubber seperator thing could that be the problem? I looked at the LCD and nothing is in between it and the digitizer but it appears to be loose. All connections are seated correctly.
If the LCD was being pushed from the backside thats metal would that be a problem?
Click to expand...
Click to collapse
If the LCD is being pushed it shouldn't be a problem. If a piece of metal was touching the digitizer, then you'd have interference which would cause ghost touches and poor accuracy.
Sent from my Nexus 7 using Tapatalk HD

redmonke255 said:
If the LCD is being pushed it shouldn't be a problem. If a piece of metal was touching the digitizer, then you'd have interference which would cause ghost touches and poor accuracy.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
Okay so I took it apart and reassembled it like 5 times and I'm getting frustrated.
Basically the issue is the screen is all wonky after I power it up. The picture was perfect with the old digitizer that was cracked and had water damage, how is this possible? But when I plug everything in I get the wonky picture.
So is it my LCD or the digitizer?
By the way all touch functionality works 100% so whats the deal... because the LCD was working before with the broken digitizer that had no touch working lol.

You could try to unplug the digitizer and see if the picture becomes normal. If so, it is the digitizer.
Sent from my LG-P999 using xda app-developers app

mansa_noob said:
You could try to unplug the digitizer and see if the picture becomes normal. If so, it is the digitizer.
Sent from my LG-P999 using xda app-developers app
Click to expand...
Click to collapse
Tried that and no luck.

abccg said:
Tried that and no luck.
Click to expand...
Click to collapse
It seems then either bad LCD or connector, or even hardware... IMHO you need another phone to further rule out any possibilities.
Sent from my LG-P999 using xda app-developers app

Related

Anyone replace a digitizer on a sensation yet?

Cracked my digitizer and the new one is supposed to be here this afternoon. Anyone done this yet? Anyone found a good breakdown guide?
How did you go? I'm about to tackle it tonight!
Here's a video
http://www.youtube.com/watch?v=T5bWl73O9ss&feature=youtube_gdata_player
Sent from my HTC Sensation 4G using XDA App
I have replaced it but with a terrible unresponsiveness that still exists for a short period of time after screen activation. The process is a bit in depth, though.
You need to rip up the phone from the back to the front. torx screws in the back come out, the plastic battery tray comes off, two circuit cards come off, unplugging the ribbon cables. The rest of it is a very gentle prying to get the double sided sticky tape separated from the digitizer and remaining case. you will need fresh tape to lay down so it gets a good seal, and I recommend latex gloves to keep fingerprints out. Dust free environment/do it in a plastic bag as well. Kind of a pain to keep the digitizer and LCD free of debris. I am still trying to figure out what the hell is causing the screen unresponsiveness... maybe a grounding issue.
So I received my new digitizer, and it is broken already - I slid the ribbon between the chassis and LCD the wrong way, and in trying to pull the ribbon back out, it snapped so my Sensation remains in pieces while I get a new digitizer. Also bought a roll of 2mm 3M tape to seal the digitizer back too!
The disassembly isn't complicated, but it is fairly involved with lots of delicate ribbons.
What sort of unresponsiveness are you referring - is it always, or just when it's on charge?
The phone is almost completely unresponsive immediately after reactivating the screen. This could be after it disables the screen via proximity sensor for a phone call, or securing it and trying to use the lockscreen. After swiping my finger across it for several seconds it works perfectly, however. Either seems like a software recognition or a grounding issue, as I'd imagine the finger swiping is slowly building a charge. At least that's my theory so far.
Sent from my HTC Sensation Z710e using XDA Premium App
what9000 said:
The phone is almost completely unresponsive immediately after reactivating the screen. This could be after it disables the screen via proximity sensor for a phone call, or securing it and trying to use the lockscreen. After swiping my finger across it for several seconds it works perfectly, however. Either seems like a software recognition or a grounding issue, as I'd imagine the finger swiping is slowly building a charge. At least that's my theory so far.
Sent from my HTC Sensation Z710e using XDA Premium App
Click to expand...
Click to collapse
How did you go with your theory? I just replaced the screen in mine and I am having issues with my sensitivity when the screen first turns on, too
I replaced the digitizer twice so far. Both are unbranded "HTC" labels, my original said HTC and T-Mobile in the right. Also different serial. Same unresponsiveness as well. It has to be something else.
Sent from my HTC Sensation 4G using xda premium
what9000 said:
I replaced the digitizer twice so far. Both are unbranded "HTC" labels, my original said HTC and T-Mobile in the right. Also different serial. Same unresponsiveness as well. It has to be something else.
Sent from my HTC Sensation 4G using xda premium
Click to expand...
Click to collapse
So do you think it's the digitizer itself?
Its either the wrong digitizer for the model of phone (Europe/USA/fake garbage) or something else is at fault. Le sigh.
Sent from my HTC Sensation 4G using xda premium
what9000 said:
Its either the wrong digitizer for the model of phone (Europe/USA/fake garbage) or something else is at fault. Le sigh.
Click to expand...
Click to collapse
Yeah, I have been reading and some other people have had similar problems. I asked the seller of the digitizer and they said they have not had any problems like this before.
I think I'm going to sell the phone soon, will buy an HTC Desire or Desire HD for a few months until the Sensation XE comes out.
I also want to sell this phone. In its current state I can't see it fetching more than $100 though... Half the purpose of a phone is quick reference, not a 10 second frustrating unlock frenzy.
Sent from my HTC Sensation 4G using xda premium
Fairly unrelated, but do you thing my phone is in need of a new digitizer or an LCD? Everything works fine, except for those 3-4 cracks that don't look so great.
tinypic.com/r/2uihlj9/7
what9000 said:
I also want to sell this phone. In its current state I can't see it fetching more than $100 though... Half the purpose of a phone is quick reference, not a 10 second frustrating unlock frenzy.
Sent from my HTC Sensation 4G using xda premium
Click to expand...
Click to collapse
Yeah, you can't exactly answer incoming phone calls
I'm wondering if it might fetch more, if I put the cracked digitizer back on there.
---------- Post added at 02:15 PM ---------- Previous post was at 02:13 PM ----------
Blodoffer said:
Fairly unrelated, but do you thing my phone is in need of a new digitizer or an LCD? Everything works fine, except for those 3-4 cracks that don't look so great.
tinypic.com/r/2uihlj9/7
Click to expand...
Click to collapse
Yeah, that's a digitizer crack. I wouldn't bother replacing it...
I just replaced my digitizer and I'm getting the exact same behaviour. A phone shop also tried two of their panels and they also exhibits the response issue! However reinstalling the broken original digitizer works!
How can all three panels I've tried be faulty? It must be something else.
I can answer calls but I have to swipe rapidly across the answer key. It sucks and if replacing the original makes it work then its a model number issue. Probably the wrong digitizer for that phone revision.
Sent from my HTC Sensation 4G using xda premium
I repair cell phones for a living and have done the sensation digitizer twice. I now turn them all away.
from what I have been able to deduce, something about the space between the digi and lcd causes the unresponsiveness. try using a little more adesive, maybe a layer on a layer, it may work a little bit better
nickL0V3 said:
I repair cell phones for a living and have done the sensation digitizer twice. I now turn them all away.
from what I have been able to deduce, something about the space between the digi and lcd causes the unresponsiveness. try using a little more adesive, maybe a layer on a layer, it may work a little bit better
Click to expand...
Click to collapse
Thanks, I'll give it a go, I suppose!
Have you determined that it is more space that makes it better?
A bit of Googling suggests that many struggle with the unresponsiveness, but I suspect that there might be two separate causes here. Some report pretty random unresposiveness, and it helps to restart the phone, and apparently fixing a bad ground connection between the phone and the back cover fixes the problem. Then there are many who report that it has happened after replacing the digitiser.
I've just replaced mine, and every time after the LCD is activated, the screen is very unresponsive for 15-20 seconds, and then everything is just fine as long as the LCD remains on. Is this exactly the same behaviour everybody else here has seen after replacing the digitiser? The most irritating bit is that it makes it hard to answer a phone call in time.
I disassembled my phone once more and put it together again making absolutely sure that it was done properly. No change. I haven't glued the digitiser properly yet, though, since I'd like to get confirmed that it's working before I do something which is hard to undo. But I've tried different spacings between the LCD and the digitiser (though this is a bit difficult when the whole thing is partly loose), and I haven't really noticed much difference. I've kept much of the original glue, which isn't very sticky anymore, which means that I probably have a bit of spacing already. Any chance that the responsiveness gets better with as little spacing as possible, has anyone tried that?
Please keep posting reports on both what doesn't help and on what seems to improve the situation.
I wonder if it's like the iPhone 4. Many people complained about the proximity sensor not working anymore once the digitizer was replaced. Either way, I think I'm going to suffer through a couple months of this and buy a new ice cream sandwich phone when they come out. :/
Sent from my HTC Sensation 4G using xda premium

[Q] Replacement Digitizer Problem

So I finally replaced my cracked screen and I've been having issues with my new digitizer. It's one of the LG digitizers, not the ones that say T-Mobile at the top. When you touch the extreme left side of the screen, it acts like you're touching the extreme right side of the screen at the same time. It's very weird - when I try to capitalize, it also backspaces, and my a's all have l's after them - stuff like that. It's like that all the way from the top of the screen to the bottom.
I got in there and cleaned a couple of specks of dust that I had accidentally left between the digitizer and LCD screen and it didn't seem to help. I used compressed air to clean the contact where the digitizer ribbon cable connects to the motherboard and tried to get the ribbon cable itself to sit under the motherboard nice and straight (I had a little trouble with it the first time and it could have been crooked, I guess, but I'm not sure if that would even matter.) I've also tried soft reboots, removing the battery, full wipes, and even have experimented with a few different ROMs. Acts exactly the same.
What do you guys think? Do I have a bad digitizer or is there something else I could try to get it to work properly? Thanks!
I buy broken phones of Craigslist and fix them. I have put digitizers on 4 g2x as of yet never had that problem. I'd make sure the connections were nice clean and seated correctly. I see you've done that so my conclusion is that you have a faulty unit. Run a calibration app and see if that helps
Sent from my LG-P999 using Tapatalk 2
I had bought a digitizer with the LG logo on it and it was not as senseative to the touch and as well when touching the left or right sides of it where off a little. I used the ones with the T Moble logo and all works like new.
Sent from my LG-P999 using xda premium
Different digitizer replacement issue
Stopfakn said:
I buy broken phones of Craigslist and fix them. I have put digitizers on 4 g2x as of yet never had that problem. I'd make sure the connections were nice clean and seated correctly. I see you've done that so my conclusion is that you have a faulty unit. Run a calibration app and see if that helps
Sent from my LG-P999 using Tapatalk 2
Click to expand...
Click to collapse
Hi, my screen cracked, so I got a replacement digitizer and installed it. When I reassembled the phone, it worked fine, except the buttons at the bottom (home, back, etc.) and the bottom 15% of the touch screen do not register. The rest of the touch screen works fine.
Do you know if that part is connected differently from the rest of the phone? Or any other reason it might be broken.
This may be dumb on my part, but my package didn't come with adhesive, so I used superglue. Could that be messing up the sensor somewhere? Or is it not likely that?
Any thoughts/comments would be greatly appreciated.
You probably got some glue in the wrong place. I used 3M double sided adhesive, that way I could be exact with the placement
Sent from my LG-P999 using xda premium
Superglue + Electronics = BAD!
Sent from my LG-P999 using xda app-developers app
justjackyl said:
Superglue + Electronics = BAD!
Sent from my LG-P999 using xda app-developers app
Click to expand...
Click to collapse
Hah what he said.
You should never use glue of any sort on electronics. If the manufacturers don't do it, then you surely shouldn't.

Anybody tried these replacement screens?

and how much trouble would it be to install one? Only the outer glass I know.
http://item.mobileweb.ebay.com/view...cmd=VIDESC&index=2&nav=SEARCH&nid=37627158673
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
I got one, it went in all right, but was a pita to get the oldscreen off. Its pretty much glued on, has an adhesive gasket, and requires breaking the old screen to pieces separateto . The new screen never came with the outer seal, but i haven't had any issues yet. Its been in about two months.
I wouldn't trust eBay for a screw driver
breeze1000rr said:
and how much trouble would it be to install one? Only the outer glass I know.
http://item.mobileweb.ebay.com/view...cmd=VIDESC&index=2&nav=SEARCH&nid=37627158673
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
See this video.
http://www.youtube.com/watch?v=k6Y6an6D2PE
m4570d0n said:
See this video.
http://www.youtube.com/watch?v=k6Y6an6D2PE
Click to expand...
Click to collapse
Thanks for the video....hopefully I can get my new screen installed without any problems......should be here next week sometime and I will post results IF I install it right.....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
I replaced my screen and the LCD. They are pretty tightly glued together but my glass was fine, it was the LED that was shot. I didn't watch the video but I can give you some of my experience. I got the replacement from China. It came with magic marker blocking out the 2 logos. It was on the plastic covering and there they were when I removed it. I didn't watch the YouTube I was watching past the point where he said press anywhere its broken anyway. The next sentence was "except here". I can tell you if press there you will hear an 8.95 snap. Its the power strip to the lighted home buttons. So I put the screen on and waited for it to arrive. I also got some 2mm double-sided tape this time. I knew to get it really hot also, even though I hadn't really pressed it home. I looked at the speaker hole and though that would be a good place to grab- DON'T. It snapped off the top part of the replacement screen. I thought oh well I might as well plug it up before I trash it. I lucked up and it didn't get into the LCD-YET. I'm using it now and there is one crack in the glass but a perfect picture. So, buy 2 or 3mm tape, do not press on lower right side where you see copper. Get it hot and then get it hotter- hairdryer. Take your time and remember the connectors. You understand that what you had a link to is just the outer glass and if the LED isn't broken you'll have an interesting time separating the two.
Oh, I put electrical tape where the top glass broke and its underneath the top of the plastic protector I bought. You'd have to be looking for it to notice. Sometimes you're the squirrel, sometimes the nut.
Good Luck
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Well I failed at replacing the screen.....the digitizer cracked wen trying to separate the screen from it and yes I heated the screen to where it literally burned my finger...haha.....so now I'm stuck with a replacement screen I have no use for and had to shell out another $150 for the digitizer. I shudve just done that in the first place.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Sell it on eBay 20 bucks cheaper.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

HTC One S Cracked Screen

Ok, so I barely cracked my screen today and the screen won't turn on. The key buttons still show a light when I unlock and lock, but nothing shows on the screen.
I was hoping it would be like this
http://m.youtube.com/#/watch?v=t67FM1UK7_0&desktop_uri=/watch?v=t67FM1UK7_0
Sent from my cm_tenderloin using xda app-developers app
Here are some pics
Sent from my cm_tenderloin using xda app-developers app
OK dude, sorry for that. But there's nothing we can do about it.
Sent from my HTC One S
My heart weeps for you bro
Sent from my HTC VLE_U using xda app-developers app
I'd say you have to buy a new screen from ebay.
mikennite said:
Ok, so I barely cracked my screen today and the screen won't turn on. The key buttons still show a light when I unlock and lock, but nothing shows on the screen.
I was hoping it would be like this
http://m.youtube.com/#/watch?v=t67FM1UK7_0&desktop_uri=/watch?v=t67FM1UK7_0
Sent from my cm_tenderloin using xda app-developers app
Click to expand...
Click to collapse
This is an issue with the LCD. In this device the LCD is fused to the touch screen digitizer (outer glass)
You will need to replace this fused LCD+touch screen digitizer to fix this issue and we have the parts, tools, and guides available and ready to ship.
chat with us live for more information at http://www.RepairsUniverse.com
How long would it take to ship it to Belgium?
repairsuniverse said:
This is an issue with the LCD. In this device the LCD is fused to the touch screen digitizer (outer glass)
You will need to replace this fused LCD+touch screen digitizer to fix this issue and we have the parts, tools, and guides available and ready to ship.
chat with us live for more information at http://www.RepairsUniverse.com
Click to expand...
Click to collapse
I had this same problem too. I was... expressing my disapproval of the outcome of last Sunday's championship game... and the screen cracked slightly. I figured I destroyed it, so I ordered a replacement. I just replaced the screen and digitizer, reassembled it, and the problem persists. The phone will turn on, make noise, vibrate, etc, but no image. What else could I have damaged that would still blank out a new screen? The home/back/menu keys light up fine.
Thanks for the help!

Need help upon changing the digitizer (glass only)

i didn't know that this whole thing would be so difficult so i have ordered only the glass
http://i.imgur.com/SB2LRRO.jpg
I have opened the phone until the touch
http://i.imgur.com/GTniJqk.jpg
i tried removing the glass properly for one hour but i coudn't do it, so i breaked the glass and twrow it away
http://i.imgur.com/RvjGhEJ.jpg
http://i.imgur.com/jkOG3Lb.jpg
is the touch damaged? if not, what should be my next step? remove the black plastic?
That glass you ordered is a touch screen (digitizer) itself. You broke LCD. Turn the phone on (obviously you can do it without TS) and see the damage for yourself. But most probably LCD now needs to be replaced as well.
btw, I think you have overlooked some clips or disassembling points as LCD is generally prone to damage, therefore no force should be used when working around it. It's also possible that for taking out digiter you need one of these (similiarly as for iPhones/iPods)
It also looks like the connecting flexi strip on the bottom right corner is compleatly recked and torn. (3rd pic)
Best of luck, but those pics look like disaster to me.
Edit - the more I look at those pics the more it looks like u need a new mobo...
Sent from my HTC Desire HD using xda app-developers app
ranger4740 said:
it looks like u need a new mobo...
Click to expand...
Click to collapse
Sadly... I have to agree...
Sent from my HTC Desire HD using xda app-developers app

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