My touch screen is down ? - LG Optimus 4X HD

Hello,
This morning, my phone worked perfectly, and i see some dust inside of the screen, so i opened my phone to clean this, i've cleaned the touch screen from inside, and when i reassemble my phone, all work fine just the touch screen don't work, i've retried the same operation, verified all but not working
I want to know the reason of thin, shouldn't I clean the touchscreen from inside (I have used a cleaner...)
And which site is trusted to sale this at best prices
Thanks

I'm no expert, but if the touchscreen worked before taking it apart and doesn't afterwards that probably means you broke it during the taking apart. You probably forgot to connect something back up or accidentally pulled off a connector. Not sure what you could do about it beyond having another look or taking it to a repair shop to see what they say.

Disassemble the phone again and see if you connect connector of touch screen, it is on the top of the board after you remove plastic cover.
Sent from my LG-P880 using XDA Premium 4 mobile app

Related

[Q] replacing glass (very unique question)

Good afternoon,
I dropped my bionic the other day shattering the glass. I don't have the 100 for insurance so I was looking for a quick way out till I replaced it.
Now, I know I can buy the glass/digitizer online, I even have the how-tos.
This is where my question gets unique. My coworker just out of the blue handed me his broken bionic. It was water damaged a few months ago.
Could I take the glass from this and put it on mine?? Or would it not work because of his damage? Could I rewire my good wires to his glass? I just figured free fix is better than sitting on a broken phone. Just don't know if it will work or not.
Ideas?
Sent from my XT875 using XDA
Well unless water penetrated the display (which, I think, I think, is a fairly well sealed unit) you should be able to use it. If your friend already gave it to you, just try it out
I mean, attempting to power on the unit with a potentially water logged display can't be any riskier than a cracked one imo
Sent from my SGH-I727R using XDA
The display on mine works great, just spiderwebbed glass. I would only really need the glass for it.
I am hoping it works, just don't want to waste (x) hours on my phone to have to turn around and take it apart again haha
Sent from my XT875 using XDA
Ohh ok, well, i'm certainly no expert on phone repair, I do know that the digitizer is a sealed unit, so, unless it stayed under water for a very very long time, I can't personally see why it wouldn't work for you
However, to be on the safe side and avoid wasting hours of your time (cause it does suck wasting time IMO) I'd hold up for a more experienced opinion.
sorry I couldn't be more assertive in my input
Sent from my SGH-I727R using XDA
Replacing the digitizer on the Bionic is incredibly simple, the only thing you need to be cardful with is removing the motherboard - be sure to pry the bottom away from teh LCD (small amount of weak adhesive there), because the digitizer cables (there are 2) run between the LCD and the board, so if you pull the LCD and the board out together, there's a pretty good chance of snapping those cables. Even easier than trying to swap digitizers is to just swap motherboards and LCDs. You might not even need to switch LCDs, but water isn't easy on them, so it's safe to assume that the water damaged one is trashed.
Anyway, all you need is a T4 screwdriver and about 15 minutes. The only other minor difficult area is the earpiece speaker area, but all in all, this is one of the simplest phones I've ever worked on.
Yeah it doesn't seem like a hard phone to work on. Just hope all the water damaged pieces work alright with this phone. I'll post up when I get home with results
Sent from my XT875 using XDA
Just google the ifixit for bionic its only 11 screws and 2 ribbon wires
I know how to do it. That's not what this thread is about. Haha.
The whole reason for this thread was would a digitizer from a water logged phone work as a suitable replacement for my screen.
Sent from my XT875 using XDA
Worked great, new screen is on, all the connections are solid!
Sent from my XT875 using XDA
Congrats
Sent from my SGH-I727R using XDA

My screen is rare

My cousin gifted me the droid 3 but it was rare that why he gave it to me, the screen is ok when the slider is at the middle but when i move it , it doesnt turn on, i dissembled it, i clean it with compressed air but it doesnt seem to work can anybody help ,e
Sent from my GT-P6210 using xda premium
Something must be loose inside. If you feel like taking it apart completely you could see. If you don't then see if you can get a warranty replacement (doubtful). Or you could try replacing the screen.

[Q] Screen cracked, touch not responding properly.

Hey everyone.
A few months ago I dropped my phone for the first time. It turned out that the screen had gotten a large crack down through the middle, running all the way from the top to the bottom. I tried using it, and the touch capabilities didn't seem to be affected, so basically it was just cosmetic at first.
But this afternoon, after having used it lightly since morning without issues, the phone suddenly started responding weird to touch. Whenever I touch the screen, it registers touches all over the screen, and I'm not even able to dial in my pin code after rebooting.
Does anyone have an idea what might have happened, what is broken, and how much it will set me back to fix it?
BTW, the phone arrived with a red pixel, I noticed it once when booting up, but thought it was just a bug or something. Later I found out that is actually a fault with the phone, and most companies have dead pixel policies, I'm wondering, is it possible to return the phone for a new because of the red pixel?
Thank you for your time.
I think it will be a little hard to prove that dead pixel after being cracked. If you have some skills, you can change it yourself, its not very hard and you can find the screen on the internet.
Sent from my LG-P880 using xda app-developers app
RuedasLocas said:
I think it will be a little hard to prove that dead pixel after being cracked. If you have some skills, you can change it yourself, its not very hard and you can find the screen on the internet.
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
That does sound good, but aren't the glass (The outermost layer) and the touchscreen two different things entirely?
Thank you.
Well what do you know, it started working again! Well, atleast for now.
Thanks for the advice
SB93 said:
Does anyone have an idea what might have happened, what is broken,
Click to expand...
Click to collapse
...I'm going to go out on a limb here and say it's the huge crack down the middle of the screen? :good:
Seriously, though.. capacitive touch-screens measure changes in the resistance across a thin layer on top of the glass. So if you bend it somehow, or damage it (say, stretch it because the glass underneath cracks), then the resistance won't be picked up, or it will be registered inaccurately. So it might work for a while, or work reasonably well. Know a guy who smashed his iPhone.. sat on it, actually.. and it worked with "cracked" glass (that was held together by the layer on top of the glass, right) until he bought another iPhone. *shrug* He talked about it a lot, but it didn't seem to really make a difference on the actual phone.

The touch screen does not work?

A month ago I broke the outer and inner screen I ordered on eBay
I installed it and since I have a line on a screen in the upper part of the touch screen that it does not work
There is a picture but the touch is not working
I installed a few times then the problem is not with the installation
There is a possibility that I need to install the Rom again or that can not be it software problem?
sganach said:
A month ago I broke the outer and inner screen I ordered on eBay
I installed it and since I have a line on a screen in the upper part of the touch screen that it does not work
There is a picture but the touch is not working
I installed a few times then the problem is not with the installation
There is a possibility that I need to install the Rom again or that can not be it software problem?
Click to expand...
Click to collapse
in my opinion thereĀ“s something wrong with the conector besides the lcd screen.
Never ever had a problem with a rom that involving the touch function
So according to you the problem is in the internal screen in the LCD?
AW: The touch screen does not work?
sganach said:
So according to you the problem is in the internal screen in the LCD?
Click to expand...
Click to collapse
well bud I'm no mechanic but i think so. it's because no Rom changes the touch driver. and when it's completely not working not partial. besides i read about this problem after changing the screen often in eBay
Sent from my LG-P990 using xda premium
You think it's the LCD or external screen?
I can say that it's the sealing rubber's fault out of bad experience, because I replaced my screen myself recently.
After first ordering a replacement screen and installing it properly my whole upper half of the touch did not work. A second time a smaller fragment did not work.
After googling it, I found out that the sealing rubber around is very important, however even though getting a rep. screen is no problem at all, getting the rubber was impossible on ebay or on any local shop. (Why is no one offering these?)
So I ended up buying the thinnest double sided tape I could get and everything works fine now. It's extremely fumbly though and takes some steady hands Use a knife and not scissors to cut the tape.
Sent from my LG-P990 using xda app-developers app
kohos said:
I can say that it's the sealing rubber's fault out of bad experience, because I replaced my screen myself recently.
After first ordering a replacement screen and installing it properly my whole upper half of the touch did not work. A second time a smaller fragment did not work.
After googling it, I found out that the sealing rubber around is very important, however even though getting a rep. screen is no problem at all, getting the rubber was impossible on ebay or on any local shop. (Why is no one offering these?)
So I ended up buying the thinnest double sided tape I could get and everything works fine now. It's extremely fumbly though and takes some steady hands Use a knife and not scissors to cut the tape.
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
Wow thank you very much
My screen really dont stuck so well I did not think that's the problem
You talk about the external screen right? Not about the LCD?

Replacing the screen of my Z1 (C6903) suggestion wanted

Hi everyone!
Today i visited the sony care point to discover that my phone isn't covered by warranty anymore, due to fact the internal LCD had a crack (despite never dropped in recent times).
Anyway, no worries... my warranty will end in a couple of days.
So... I want to attempt to fix it myself. I'm not experienced, but I work all day mounting PCs and servers, i think this will be a little diffent but not too hard, right?
Can anyone suggest me how and where to buy the entire frame and the LCD of the phone? (I want to keep it waterproof)
I saw many websites, but I don't trust most of them, so a good reccomendation is really useful here.
Also, what set of tools is reccomended to do everything? (Can i use my hair dryer to unglue the screen?)
Many thanks and sorry for my english being so bad, is not my native language.
I'm not sure how to replace the screen on the Z1, but I'd warn you against relying on its waterproofing after replacing the screen. Unless you can perfectly fit the rubber seal so there's literally no gap, the water will enter your phone.
It can be waterproof but don't buy cheap replacement as they are not always properly glued tohether, if at all. Buy original lcd+digitizer+frame assembly and precut glue frames like this. Hair dryer should be enough.
I cracked my screen yesterday
Today i get it from the technician (not original sony, in my country is inexistent). So far so good, only i found one problem (waterproof lost of course) the WIFI signal power is down by -20dB. So, now i have problems connecting to distants wifi.
EDIT: Now wifi working normal again, just another trip to the technician
Also, my phone is black front & withe back now.
luchoz said:
I cracked my screen yesterday
Today i get it from the tecnician (not original sony, in my country is inexistent). So far so good, only i found one problem (waterproof lost of course) the WIFI signal power is down by -20dB. So, now i have problems connecting to distants wifi.
Also, my phone is black front & withe back now.
Click to expand...
Click to collapse
Black front and white back sounds pretty sweet. The black back cover attracts too many fingerprints imo
D33KK said:
Black front and white back sounds pretty sweet. The black back cover attracts too many fingerprints imo
Click to expand...
Click to collapse
Some pics http://imgur.com/a/lAXC7
luchoz said:
Some pics http://imgur.com/a/lAXC7
Click to expand...
Click to collapse
Nice pics, I'm gonna replace my back cover with the white one now.
I got my water damaged lcd replaced with a Chinese 1st copy and it's working great, however my phone lost its waterproofing as back cover is having problem to be glued properly again
Sent from my C6903 using XDA Forums Pro.
yea i replaced my screen and i think it messes with my sensors, im not entirely sure im still doing some analysis but like after some time (about 2 hours or so) my gyro, light and proximity sensors stop working until reboot.
one more thing. theres layers of stuff inside of the z1, its a bit complicated, even for me and i am a computer & phone tec. its all about the glue and remembering where they go. i didnt really do mine correctly so i lost my waterproofing. gluing it 100% like stock is very hard.
ans ps
DONT USE A HAIR DRYER!!!
it wont get hot enough to separate the screen (broke a galaxy s3 back in the day doing that) use a heat gun

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