[Q] Replacement Digitizer Problem - T-Mobile LG G2x

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.

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

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

No Screen! Cover Replacement Gone Horribly Wrong! Help/Buy/Suggestions?

SMh... broke my digitier/lcd on my One X today!
Was gonna replace my back housing because it was cracked and had scuffs to put a white one on,
but when I was doing the first step I went into the wrong slit and slid my tool in between the LCD/Digitizer!!
Only a few centimeters from the edge, guess it was enough.
Now the screen doesnt turn on AT ALL!! Phone still boots and capacitive buttons light up and vibrate
I'm not sure where to start, I hope I can get it to work still but I dont know what to try now.
Im a noob, but the only thing I can think of is to dissamble the whole phone and then
blow dry it and separate the LCD/Digitizer and put them back together after inspecting.
This happened by sliding a guitar pick in between the LCD/Digitizer.
I only went in a few centimeters from the edge until I realized I was doing something terrible wrong.
I was trying to disassemble my One X.
It still works, I plugged in MHL adapter and it works, could navigate normal, just that the LCD doesnt turn on.
Click to expand...
Click to collapse
A) $75+ for a new screen and attempt to fix myself?
B) Sell it for as much as I can? $220?
C) Try to get AT&T/HTC to replace it even tho I rooted 2.20?
You know how long its been since I read about a Hox issue that hasn't been posted yet???? I feel bad, that sux, it really does, but this was by far the funniest thing I've read about in a while
Sent from my Nexus 7 using Tapatalk 2
I did the exact same thing you did! That's why I've got two HOX now. I had to purchase the LCD/digitizer combo. All fixed now. I still have the digitizer screen on my desk. Sucks I know.
Sent from my One X using xda premium
you can try that but doubt it'd fix anything. Plus the LCD and digitizer are seriously bonded together tight so it'd be hard to take it apart fully without breaking the glass. I've replaced my LCD/digitizer twice, and while it's not impossible, it's still very tedious and risky. So if your gonna do it yourself I'd suggest making sure the place you get it is atleast somewhat reputable so you don't get another faulty screen, and don't use super glue to bond the LCD to the housing! (lol that was what I did with my first screen and it destroyed the screen). And be prepared to be left with some more scuffs on your housing. Otherwise sending to HTC shouldn't be a problem, even with root I think it's fine. It's just a screen repair, its not like root could cause really screen damage. Good luck though on whatever you decide.
Sent from my One X using xda premium
thanks for the reply, um do you think HTC would fix for free if I play dumb and say one day it just stopped turning on?
I've decided not to try to separate the LCD from the digitizer, way too work.
and an xda member said he'd sell me his lcd+digi for a good price but its a HTC Branded one instead of AT&T, i think it will work the same tho,
I got the HTC logo digitizer/lcd. Worked fine vs the original att one
Sent from my One X using xda premium
alright good to know! I prefer it to say HTC anyhow since im not even with AT&T! Im T-mobile!
so you really did the exact same thing as me!? guitar pick in the wrong hole!?
How far did u push in and try to separate it til you noticed u messed up BIG TIME?
I was in denial for a good 10 minutes =( still kinda am... smh
I went a little farther than you and got angry though. Totally destroyed it. Lol! Couple things. Make sure you get the adhesive strips. There is a metal casing that goes around that LCD that likes to pop out if not glued properly. And I got mine from repair universe. Not perfect but pretty cheap. Only issue is captivate button lights don't transfer over, and I had to silicone the edge of the LCD to the digitizer cause it started getting dust between them. Pain to say the least. I taken these apart enough now. I'm comfortable with it.
Sent from my One X using xda premium
u bought the LCD+Digitizer and the capacitive buttons still didnt turn on? Hope mine will work.
Also can u point to me which YouTube tut was the most helpful for you?
I wish there was some way to fix the LCD I have now tho, still in good condition aesthetically =(
Yeah it sucks that most newer devices really bond the LCD and digitizer tightly. Once (if) you take it apart you'll realize what we mean. Its possible but very unlikely with original screen. And taking the LCD off the housing is near impossible to do without breaking the LCD in my experience too. So make sure to get LCD+digitizer. And as far as sending it to HTC, I'm sure you could try but once they figure out what you did I'm sure they'll charge you (why wouldn't they? ). There was an amazing YouTube video made by some company (I think it was irepairfast) that I used but after many people complained about their service here on their one x, they removed it. So sorry, just look around for some good ones.
Sent from my One X using xda premium
I agree with what xaey said. Depending on the LCD/screen you get the captivate buttons may or may not have the little fiber optics on them. I just went with the cheapest one I could find cause I'm a tight [email protected]%. There are NO good videos that I could find on tear apart and none on putting it back together. Take you time and keep an inventory of what you do. I lost a screw and its still missing inside the repaired phone.
Sent from my One X using xda premium
oh well it should save some power then right? im a cheap buyer too!
these tuts seem pretty good!
http://youtu.be/FxbjQbi1tAY
http://youtu.be/OIeO0DueMcg
When replacing it, just take them optics out of the original, it has very lightly adhesive but it should come off easily and then put them on the new one if it doesn't haven't them already, it should still be a bit sticky to do so. Another problem is possible light leakage (you'll know what I mean if it happens, basically more light shines through than just on the buttons). This happened to me, which is why I don't keep my capacitive lights on. Worst part is you won't know until you turn it on unless you can connect the screen to circuit without bonding it to the housing yet.
Sent from my One X using xda premium
alright I'll try that if it doesnt come with capacitive lights. will attempt to replace it next week. I hope I can do this correctyl!!
Well put xaey. I tried to transfer those over and there was way too much light bleeding from the side and bottom. Plus they were a pain to get in there. I tore that thing apart 4 times. Lol trial and error. So I just put some sealant over the captivate area. Unfortunately that does not disable the lights to them.
Sent from my One X using xda premium
subarudroid said:
Well put xaey. I tried to transfer those over and there was way too much light bleeding from the side and bottom. Plus they were a pain to get in there. I tore that thing apart 4 times. Lol trial and error. So I just put some sealant over the captivate area. Unfortunately that does not disable the lights to them.
Sent from my One X using xda premium
Click to expand...
Click to collapse
Lol yeah I know what you mean. I ended up putting some black electrical tape over where the light bleeding was on mine (just under the capacitive buttons) before putting the screen in... and it didn't help much, it just looked more weird looking at it from different angles haha. So I just keep the lights off.
Sent from my One X using xda premium
eww I do not want to see leakage from the bottom!
Hopefully i get lucky and only have to take apart once and be done with it!
I've only taken apart a HTC Dash a few years ago.
Excited to put my hand eye coordination to the test
smh... noticed wifi/data pins came off also so I am SOL!!
any suggestions on what and how to replace those pieces on the motherboard?
Witch ones? Data pins?
Sent from my One X using xda premium
im not even sure what the term for these are, the metal on the motherboard that touches the gold areas on the back cover?
I must have pulled the phone out too rough or something but they came off the mother board.
my wifi only gets 1 bar, DL speed of 3mbs
data doesn't connect, can still call text.
this video shows the areas on the phone
http://www.youtube.com/watch?v=7NZXM_O5srw

Digitizer/Screen Problem

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

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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