I have a T-Mobile HD2. A few months ago, the digitizer got a little crack but touch was working fine, so I order a new digitizer and replaced it. No matter what I did, the touch wouldn't work with the new digitizer (I know about front buttons putting pressure on digitizer ribbon cable which sometimes results in touch not working).
I thought problem might be the LCD connection slot for digitizer, so I order a new LCD too. But even with new LCD and new digitizer still touch doesn't respond! What am I doing wrong?
This problem is still baffling me. Right now, I have 2 sets of digitizers and LCDs (old ones and new ones I purchased) and no matter what combination of them I use, digitizer is not responding.
I have to say the old digitizer used to work fine before I opened up this phone, it was just it had a little chip/crack in the edge so I wanted to replace it just to make it nicer. But now digitizer won't work at all!
Is there supposed to be an insulating layer between digitizer and LCD? What wrong did I do by opening up this phone? I was very careful. The only thing I am not putting back for now is the front keys and its flex cable. Other than that, all what I took apart before, I have put back!
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Hi
I have a Qtek 9000 and recently I broked the display. As I had the service manual I thought I coud replace the display by myself. I bought a new LCD + touch screen on ebay and the replacing of the LCD was easy and went quite well. The lcd works fine but the touch screen don't. I cheked and clean all the contacts but couldn't make the touch screen work.
So I wrote de seller and we agree to send back de display and receive a new one that he will test bofore posting.
I placed this new display and the problem remais the same. The lcd works fine but the touch screen don't, so I think the problem could not be here.
I made a hard reset and even downgraded to the original ROM but the touch screen still not working.
Can anyone help me with this
Thanks
Have you tried the touchscreen side of things before re-asembling the casing?
I have had problems with the seal on the casing around the screen activating the touch screen permanently - so that it runs really slow (if at all) when using the keypad.
damn, did you get the touch screen to work at all?
which LCD + touch did you buy from ebay? hopefully we can avoid this seller and get something that works.
ever thought of buying the touch screen separately and putting that on?
Let us know how it goes.
whitemoo.
after disasembling/asembling device had the same ussie with touch,after a cup of hours using it.
armandoramos try to open,when UNI works,only a part of UNI with LCD(look page 21 in service manual-bottom picture,page 22 & page 23-middle picture),then try how works your touch.If it works-you just had pinch the LCD coaxial cable module.
i had a problem with my touch screen, i was lucky enough to find a second hand uni in a local market with a busted lcd but working TS.
i swopped over the TS and re-assembled my uni, one thing i did have to add was a tiny piece of foam between the ribbon cable assembly and the case, this was to push the two ribbon cable sections (TS and LCD) together, for a better connection, relying on the sticky bits alone was not enough.
hope this helps.
I have had my wing for only 2 months and I bought it off of a friend.
When I had it I noticed two little scratches at the right hand-side bottom of the screen, but everything worked perfect......until now.
The problem I am having is that the touchscreen is not responding right att all. The main screen is crystal clear (it functions right) but the touchscreen interface is does not repond to touch or when it does, it activates another section of the screen different from where was pressed.
Do u guys think it's really the touchscreen layer on the main screen that is faulty or could it be something else triggering a faulty reponse?
Thanks in advance.
I had that same problem with an HP iPAQ hx2490. The only thing i can say to you is: You need to buy a new screen and replace the old one..
sry
You do not need to replace the whole screen, but the touch screen digitizer will need to be replaced. I had that problem on my prophet and had to have it replaced.
Thanks guys for ur quick reply... I'll take the step to replace the necessary part....Thank you.
Doing research on this I see where these cost at least $50 or more. Is it worth it? Can you not get a new one cheaper using the offers posted on this site? Just curious.
l3v5y said:
You do not need to replace the whole screen, but the touch screen digitizer will need to be replaced. I had that problem on my prophet and had to have it replaced.
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Click to collapse
replacing the digitizer has way more steps than just changing the whole LCD screen. I had similar thing happen to my old MDA and I replaced both LCD and digitizer with new ones. Separating the Digitizer from LCD might damaged the actual screen itself. I suggest go to ebay and buy a combo screen+digitizer replacement part.
I got one for my MDA for 78 dollar shipped.comes with flat plastic tools, plastic screen protector, T6 screwdrivers, and wiping cloth. Not a bad deal.
The only reason I suggested just replacing the digitizer is cost... My I had to replace the digitizer it cost $60 instead of $100 for the entire screen...
After I replaced the crashed screen glass and digitizer on my sisters HD2 it doesn't work properly. The phone starts only if it's connected to a power source and when it starts the screen backlight is turned on but no picture appears.
I've replaced the screen glass once before on my HTC TytnII and then everything went fine but now something got wrong. Does someone know what it might be?
I've tried to disassemble it and assemble it again but it's no difference.
Get the LCD and digitizer together and then assemble with the HD2.
Looks like the 2 are not correctly stuck together and this is a cumbersome process requiring the use of an oven.
So the two must stick together to display any picture? It sounds strange to me but I've used some glue that I bought on the same place I bought the digitizer so it should be ok.
Check the LCD clip on the main board, as well as the flex cable. If both are fine, your LCD is dead and needs to be replaced. The digitizer does not need to be taped or glued onto the LCD for it to work. When reattaching the LCD, be EXTRA careful of the clip, thats the first part any of my techs damage when they first work on this phone.
Sent from my HD2 using xda premium
So I bought a HD2 with bad touch screen. The issue was the very common one that every one knows, red button that was poking into the touch screen flex cable. I opened up the phone and fixed the issue and touch screen was working perfectly fine. In the process, unfortunately, I chipped a little edge of the front glass/digitizer. It was not a big deal as phone was still working fine. But I decided to buy a new front glass.
When my new front glass arrived, I separated the digitizer/front glass from LCD, but then half of my LCD got corrupted. So I ended up buying an LCD too!!!
Now comes the issue: when I put the phone together, touch screen doesn't work at all. I have tried all combinations of NEW / OLD digitizer and NEW / OLD lcd. Nothing works. I wonder if anyone can help me figure out why?
P.S. When testing, I happened to connect the phone to my 5w wall charger directly connecting it to power pins (without battery installed). Would that be why I lost touch? Is the touch issue now because of motherboard that was directly connected to adapter, not getting power from its designated battery?
have you tried the old lcd with old digitizer (which was working)?
tried it before replacing?
did you made some change to the software before replacing?
I currently have this problem too while trying to revive my old- almost 3 years inactive- HD2 with new touchscreen, and still trying to figure out where is the problem
b3rvirus said:
have you tried the old lcd with old digitizer (which was working)?
tried it before replacing?
did you made some change to the software before replacing?
I currently have this problem too while trying to revive my old- almost 3 years inactive- HD2 with new touchscreen, and still trying to figure out where is the problem
Click to expand...
Click to collapse
Yes I had tried the old LCD, and that didn't work either.
I installed a WiFi Keyboard on it.
Did you resolve this issue?
Hello,
I have dropped my Jiayu and the front panel is broken, the touchscreen is not responding, but I don't see that the screen is damaged. I've plugged the mouse via OTG cable and I could use the phone in this way.
So my question is could I just replace the digitizer and the front panel, or do I need to replace the whole screen? (where front panel and digitizer is included of course)?
I don't even know if replacing the digitizer is possible due to the fact that it is glued to the screen.
display and digitizer are one part!
But there is a possibility to buy just digitizer.
IF22I said:
But there is a possibility to buy just digitizer.
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Click to collapse
I have successfully replaced displays on 3 S3 already, it's fairly easy,. Replacing the digitizer only might be possible if you have the right (semiprofessional) equipment, but I doubt you will succeed. Try it if you feel sure... I would not.
IF22I said:
Hello,
I have dropped my Jiayu and the front panel is broken, the touchscreen is not responding, but I don't see that the screen is damaged. I've plugged the mouse via OTG cable and I could use the phone in this way.
So my question is could I just replace the digitizer and the front panel, or do I need to replace the whole screen? (where front panel and digitizer is included of course)?
I don't even know if replacing the digitizer is possible due to the fact that it is glued to the screen.
Click to expand...
Click to collapse
I was in the same situation with my Jiayu S3 two months ago, I bought the digitizer (I month wait until it arrived from china aliexpress ) and brought it to two local mobile repair shops...
Neither of them would change the digitizer...both said they could change the whole screen part only as the digitizer is very difficult to change and you need special machines to do it....now im waiting for the whole screen part to arrive...(another month )
So your best bet is to buy the whole screen and change it yourself or in a techie shop...or look for another phone if the 50$ price of the screen doesn't convince you...
Good luck
Will this work? My LCD is broken and the touch is not responding.
https://www.lazada.com.ph/-i230059199-s308593776.html?spm=a2o4l.order_list.detail_image..1ec73e179ySzyF&urlFlag=true&mp=1