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?
Related
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.
Today, when I was switched on my Nike and tried to write my SIM cards password, I realised that touchscreen is not working. I tried to press various places of the screen but with no luck I made some reboots but again the same luck... so propably is not software problem. It's very difficult to use it only with it's keyboard and it looses its usability :S Is there anything I can do to fix it up???
Recently I came onto the same problem, at first the screen didn't work and then the screen just became black.
I opened up the phone and saw the flex cable had been scratched, so I bought a new one at ebay, replaced the old one, and wolah... worked like charm. Got my old phone back, installed a new 6.5.3 ROM and I'm LUVIN my "old" HTC.
Search for HTC TOUCH DUAL NEON 300 FLEX CABLE REPAIR LCD SCREEN US
I bought mine in Iceland, (Europe) but I think that all the flex cables are the same in all versions of the phone.
Thank you for your advice
Thank you for your advice,
I didn't manage to change the flex cable yet, because the touchscreen started to response again, but just for 3 hours... Now it does not response again. The screen now displays everything fine, but if I touch nothing happens. I can only use it by the keyboard. I heard that in most chases, scratched flex cable turns screen white or black, it doesn't affects the touch(screen). But I'll give it a go
For a bit time ago i accidently broke my lcd display on my hd2, and because htc could not fix this cheap i decided to try myselvf.
first i ordered a lcd and a new digitizer and soldered them together and fixed everything just like in the video and the lcd started to work, but now my touch pad does'n work! I can't do anything
Then i took the screen out and ordered a new one from ebay which was assembled from the shop.
And same resault
what could be the problem? I have a danish hd2 and i have tried to update the firmware after i replaced the screen and digitizer and still no respond
what could be the problem?
hey, did u fix the digitizer yet. i had a similar problem. the volume buttons got stuck in and i decided to open it and fix it. right after closing it back the digitizer stopped functioning...............please let me know asap if u managed to fix urs and how u did it thanks
Same problem here
I've got the exact same problem. Replaced LCD and digitizer but it is still not working. Additionally the screen is a little yellowish. Anyone knows if this might be related and any idea who to possibly fix this?
Hi, I have exactly the same problems, even tried with 2 fresh new digitizers. Could it be that they are extremely sensitive on the inside? Or is it some glitch somewhere?
Extremely frustrating!
Sent from my HTC HD2 using XDA App
well mine is in the scrapped now. when my digitizer arrives and i sort things out i will get back to you
Hi, I bought HD2 with broken digitizer, so after it came to me I immediately buy new digitizer, didn't look for the cheapert but once again I resolve myself to never buy things for china digitizer doesn't work so I need to new one from USA, send it to my friend and he repair it within day, now everything work... and yes digitizer are very sensitive
Hello people.
My screen was not working properly (for example I can't press X) so I bought a digitizer - I had this situation for almost a year, because it was only one certain parts of screen.
I mounted the digitizer today but the touch capability is completely off. When I was about to complain, I tried with the old digitizer, but the problem mantains!
Any idea what could be the problem? I already checked all the cables hundred times, and did a hard reset.
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!