[Q] HTC Hd2 TouchScreen doesn't work + black screen - General Questions and Answers

Hello...I have an HTC Hd2 ,but the touchscreen doesn't work...Yesterday the display works fine but now,after i disassemblyed the phone,the screen is black,but the LED-s are lighting. In some positions ,LCD works fine...
My HTC has the touchscreen with soldering version
The question is: the soldering of touchscren, can affect the LCD? If the touchscreen is missing,LCD is working?
Sorry for my english! Thank you so much!

costel said:
.Yesterday the display works fine but now,after i disassemblyed the phone,
The question is: the soldering of touchscren, can affect the LCD? If the touchscreen is missing,LCD is working?
Click to expand...
Click to collapse
1-YES, AFFECT LCD of course
2-maybe... it depends, they has an independent connections
3-WTF?¿?¿?why you dismount your device??????its possible that you crashed the electronic contacts....(OMG)

I cleaned the digitizer contacts and lcd contacts and for 5 minutes it's work perfectly...
I hope LCD is not broken,or his flex cable...
If the touchscreen doesen'twork,should i buy a new one? Or it's another problem?
Thanks

costel said:
I cleaned the digitizer contacts and lcd contacts and for 5 minutes it's work perfectly...
I hope LCD is not broken,or his flex cable...
If the touchscreen doesen'twork,should i buy a new one? Or it's another problem?
Thanks
Click to expand...
Click to collapse
lcd goes with the touchscreen by default......(50-60euros more or less)...
why you don´t try to disasemble it agin and scroll the problem?you don´t loose anything...

I will go to a GSM service and i will say to service man to disassembly the phone and to clean the contacts,and to say what is the problem!
I hope LCD is not broken ...only digitizer.
Digitizer can be responsable for black screen?

I want more opinions...
I repeat...Digitizer can make LCD Black? LCD is black but the led's are working
Thank's.

Related

Anyone found Replacement SCREEN for Acer neotouch

I cracked my screen (while it was in the pocket of my jeans). Anyone know where I can find replacement screen? Is it easy to change it?
Thanks
I can't paste a link here so copy the number and paste it in ebay.com:
280472528404 (description: new original Acer s200 S 200 LCD Screen)
I don't know if it's easy to change..
Philippe_Raimo said:
I can't paste a link here so copy the number and paste it in ebay.com:
280472528404 (description: new original Acer s200 S 200 LCD Screen)
I don't know if it's easy to change..
Click to expand...
Click to collapse
Thank you very much, I will look into this one.
screen seems to work fine, installation was not too hard. However, new screen acts little weird, as once phone is off, backlight turns off immediately, but you still can see image for few seconds under normal light, pixels show through, and then it fades away.
Look for an original AUO H380VL01 or HTC Touch HD Sharp matrix... It's reported to be compatible with our phone
cracked screen too
baddentist said:
screen seems to work fine, installation was not too hard. However, new screen acts little weird, as once phone is off, backlight turns off immediately, but you still can see image for few seconds under normal light, pixels show through, and then it fades away.
Click to expand...
Click to collapse
i have the same thing with my acer screen (cracked in my jeans)
i buy one on ebay (i m waiting the screen)
can you tell me how to do to change the screen ? it's easy?
(sorry for my bad english)
ok it s done
i recieve my lcd screen with tools and i change it
it's easy
the screen is ok thanks for xda and all of you for existing
(sorry for my bad english)
I installed mine today -after 6 months with broken screen- I bought lcd for HTC Touch HD T8282.It is far more cheaper than the acer one and fits perfectly.ebay item 290424248491.
The HD screen is the same of NeoTouch?
I've paid 70€ for a screen for newTouch, but your proposition is more good: 50€!!
Are you sure it's good for Acer? My touchscreen is OK...
Im using it since last friday. its perfect
I received my screen today, but it's difficult to open this mobile phone!
I remove 5 screw on sur back of the phone, but i don't know what remove
There are two more screws at the left and right sides of battery house
littlbox said:
Im using it since last friday. its perfect
Click to expand...
Click to collapse
i have the same prob.... i dropped my phone and my screen blanked ....and i need another lcd .... i was thinking about what you did.... but if i'll get the HTC one the front of the mobile will be with HTC logo instead of the ACER one ...
right?
screen now fixed
I took my phone in to a local shop and they were able to change out the screen using an HTC HD screen (yes, the exact same screen as the neotouch). All is fine with the screen. They messed up the power button, but that is another story. I watched the guy do this and it seemed like a hell of a lot of intricate work to do yourself. I was happy to pay the $120. Now, I just need to return and get them to redo the power button (installed it incorrectly when putting it all back together).
For those adventurous enough- go for it, but I suggest the cheaper HD screen. And no, only the screen was replaced, which is under the touch screen/digitizer that actually has the acer logo. All looks as it did before.
I took my neotouch for a motocycleride in the rain. It didn't like it too much and now the touchfunction is messed up on parts of the screen. It all displays as it should but I can't use parts of the screen. I should be allright with just replacing the digitizer right? Ebay item Item number: 170518652337
Hi, the same for me.
Touch doesn't work on some area.
Need change digitizer or LCD?
Antenna gps
Hi someone tell me where it's possible to buy a part "gps antenna "?
LCD Screens from HTC Touch HD and HTC Blackstone are working correct. Use these replacements instead of original
darks1de said:
LCD Screens from HTC Touch HD and HTC Blackstone are working correct. Use these replacements instead of original
Click to expand...
Click to collapse
Hi,
this didn't work in my case. After replacing my broken original lcd screen with a new lcd display (eBay - No. 120608475783, Original HTC Touch HD LCD Display T8282), I can see that the display is switched on, but it doesn't seem to receive any signal (like you turn on your pc monitor but not the pc). Now I have two questions:
1.) If only the lcd display is broken - should I still see something on the display? Because on my broken display, I only have a black and a white part and some coloured stripes, mostly where the display is broken.
2.) Is it possible that there is something more broken on my NeoTouch or did I simply receive a broken lcd panel? It did fall off the couch, completely flat on the display.
fyi: the new lcd was missing some isolation (on the flexible part with some electrical components) which was present on my original lcd. I used some sticky tape as a replacement because it is directly positioned over some other electrical components on the phone when in place.
New Info:
Everything except from the display seems to be fine - when it is connected to my PC running "My Mobiler". But I have seen pictures of mobiles with a cracked screen whre you were still able to see (partly) the homescreen, etc. On mine, I am not able to see anything while the cracked screen is mounted - only white and black parts and some colored stripes...
Update: The delivered display was broken. Yesterday I received a new one which works perfectly!
many thanks in advance
TrashX
aih, the same story with my f1
anyway could you suggested seller lcd f1 on ebay???
i'm afraid if wrong order with lcd resolution under wvga,,,
some seller show resolution from their prodocut and a lot of seller don't do that,,
please help me..

[Q] Replace housing on Diamond

Hello everyone
My Diamond really needs a new housing and digitizer.. I have replaced screens and other stuff on other HTC phones many times (Universal, Prophet, S710 and so on) but what i havent tried before is replacing a digitizer. If i understand correctly isnt the digitizer the sort of small panel over the LCD screen that is used for the Touch to worK?
Im just worried that its too tricky for me to replace that. Anyone that has tried this before and can tell me if its difficult ?
Da9L said:
Hello everyone
My Diamond really needs a new housing and digitizer.. I have replaced screens and other stuff on other HTC phones many times (Universal, Prophet, S710 and so on) but what i havent tried before is replacing a digitizer. If i understand correctly isnt the digitizer the sort of small panel over the LCD screen that is used for the Touch to worK?
Im just worried that its too tricky for me to replace that. Anyone that has tried this before and can tell me if its difficult ?
Click to expand...
Click to collapse
you can get tutorial Replacecement at http://www.mikechannon.net/page1.html
Hakim Rahman said:
you can get tutorial Replacecement at http://www.mikechannon.net/page1.html
Click to expand...
Click to collapse
thanks
Winmobile
Is there android for our Diamond?

[Q] i9100 lcd display work with i9105P?

hi, have anyone else fail their device and end up repair it with i9100 LCD display on i9105P successfully?
Is there a difference between both?
I used both phones. Looked the same :/
Sent from my GT-I9105
The display is totally the same. No difference at all.
Should be the same.
P/s It's AMOLED, not LCD
Sent from my GT-I9105 using xda app-developers app
okay, thanks. i'm gonna install it in a month. i'll update you guys later.
new display arrived yesterday with name i9100 & i9105P. installed it and it works just like it did before :victory:
what happen to ur previous screen? hm....if the screen is the same,i think the screen life expectancy will be same on i9100's,as well as the blue pixel degradation.
nickchk said:
what happen to ur previous screen? hm....if the screen is the same,i think the screen life expectancy will be same on i9100's,as well as the blue pixel degradation.
Click to expand...
Click to collapse
vodka happened
Comadox said:
new display arrived yesterday with name i9100 & i9105P. installed it and it works just like it did before :victory:
Click to expand...
Click to collapse
Hi comadox.
They display you bought is working well? Because i'm experiencing a mismatch between the point I touch the screen and the point the phone recognize it (it's recognized about 1 cm down-left), and i read on an italian forum that is a compatibility issue and the display of the devices are different, thats why the new display doesn't work properly, is that true?
Your display is for both i9100 and i9105P? Am i experiencing just an hardware fault and not a compatibility issue?
P.S. Sorry for bad english.
Another question? Did you replace lcd+touchscreen or did you replace just the display?
Sent from my GT-P7500 using xda app-developers app
i9100 and i9105 lcd difference
Hello,
i'll clear this issue a bit:
the actual lcd is the same BUT...
the flat of the buttom keys for menu, back and home - it different the connector does not fit
if you buy just the lcd and put it in the old frame with this flat - it'll be fine,
but if you buy a full assembly - it wont fit.
and there is a compatibility issue with the touch sensor, there are a few revisions to the screen, the revision number is written on the back near the connector, the early ones only work good on the i9100, they will misread the touch input on the i9105 thinking it's a bit lower then the actual touch happening
the later revisions work on good BOTH models, i do lcd refub and keep a list of the revisions testing them on both models,
in the near future i will compile it and post so that it's clear which how exactly to tell if a specific screen work or not.
hope this helps.
SergioHeadAche said:
Hello,
i'll clear this issue a bit:
the actual lcd is the same BUT...
the flat of the buttom keys for menu, back and home - it different the connector does not fit
if you buy just the lcd and put it in the old frame with this flat - it'll be fine,
but if you buy a full assembly - it wont fit.
and there is a compatibility issue with the touch sensor, there are a few revisions to the screen, the revision number is written on the back near the connector, the early ones only work good on the i9100, they will misread the touch input on the i9105 thinking it's a bit lower then the actual touch happening
the later revisions work on good BOTH models, i do lcd refub and keep a list of the revisions testing them on both models,
in the near future i will compile it and post so that it's clear which how exactly to tell if a specific screen work or not.
hope this helps.
Click to expand...
Click to collapse
I am in the same situation, accidently bought a I9100 display for my I9105P and are now stuck with the wrong touch input. Any way i can like "calibrate" the display to the phone?
boing<< said:
I am in the same situation, accidently bought a I9100 display for my I9105P and are now stuck with the wrong touch input. Any way i can like "calibrate" the display to the phone?
Click to expand...
Click to collapse
Same problem here...
Any solutions?
Jannu703 said:
Same problem here...
Any solutions?
Click to expand...
Click to collapse
I have the same problem , any solutions yet ?
I try to flash the rom of a s2 but i couldn´t
Hi!
Trying to help a participant from another forum, I think I've solved the "mystery" of the screens for the S2 that work, or not, in our S2 Plus.
He bought it to mount it gave the error offset in the touch and then put a picture of the flex of your screen to display reference codes, if anyone could help.
First, reported that the code reference would have to look it is not the LCD but the Touch, located in the lateral flex with the ATMEL chip and connected to the main flex through the CN3 connector, and that it shows TSP AMS427GL03 rev1.1, and also the ATMEL chip was MTX224
I dismounted my i9105P and I found the following: In mine, what little you can see through the holes of the mobile chassis, the chip is ATMEL MXT224E!
But I also have another disassembled i9100 display, on which the Tactile has the reference code AMS427GL13 TSP REV0.0, date 2011.04.05 ... and the chip is, again, the ATMEL MXT224E! And besides, I have two others that are already mounted on chassis, also with the chip MTX224E (What a coincidence, with no MTX224). Well I have tested all and Tactile of ALL, works well.
Another thing that I've noticed! ALL 224E chips have a large G printed over in white colour, while the 224 chips that I have broken screens do not anything printed over.
Will Samsung scored screens that initially served only for S2 i9100G but, now, are also operating in the i9105?
Any info how to get this i9100 LCd working on i9105p. Maybe some custom firmware may help?
I solved mystery about lcd i9100 and i9105
Sry for my bad english but i read all post about lcd and i found solution. Bought lcds have ATMEL chip but have diferent series, so i get old altmel chip from old broken lcd i9105 and i put on new lcd i9100 and work briliant. Before to make this change when i mount new lcd i9100 on i9105 phone touchescreen was decalibrated after change ALTMEL chip work perfectly.
So difrence betwen i9100 lcd and i9105 lcd its ALTMEL chip from digitizer. Solution its hardware my friends. thx for all from here because help me to find solution.
rogsmcom said:
Sry for my bad english but i read all post about lcd and i found solution. Bought lcds have ATMEL chip but have diferent series, so i get old altmel chip from old broken lcd i9105 and i put on new lcd i9100 and work briliant. Before to make this change when i mount new lcd i9100 on i9105 phone touchescreen was decalibrated after change ALTMEL chip work perfectly.
So difrence betwen i9100 lcd and i9105 lcd its ALTMEL chip from digitizer. Solution its hardware my friends. thx for all from here because help me to find solution.
Click to expand...
Click to collapse
How did you replaced it???
First, it is impossible to dismount screen without breaking it. Second, chip is four sides factory soldered to ribbon. Very small with micro legs -- impossible to solder by hand, only on special equipment...

[Q] Replace LCD screen question?

Hi i want to repair my Galaxy R and i want to ask You IF it is oryginal part or not http://www.ebay.pl/itm/SAMSUNG-GALA...cement_Parts_Tools&hash=item4173142931&_uhb=1
Thx for Yours answer
LCD panel
my device also require's LCD replacement from where can I get it changed without damaging the device? my LCD is broken into two piece but work's 3/4th of its screen so I am using as it is since a year. menu button & back buttons are not working. but rest is working fine.
tanveer4m said:
my device also require's LCD replacement from where can I get it changed without damaging the device? my LCD is broken into two piece but work's 3/4th of its screen so I am using as it is since a year. menu button & back buttons are not working. but rest is working fine.
Click to expand...
Click to collapse
If you are in Delhi, Visit Gaffar Market. Else, contact any mobile retailer ( Trust worthy ).

[Q] Digitizer not working after reassembly

Hi everyone.
So i tried to replace the cracked screen in a Moto G (I just replaced the display+digitizer+glass module). After the reassembly everything worked except for the digitizer (it worked before when i tested it). I tried to reconnect the digitizer connector (the tiny one which connects the digitizer controller to the display connector ) multiple times, but nothing worked. Has anyone faced a similar problem before?
Ening said:
Hi everyone.
So i tried to replace the cracked screen in a Moto G (I just replaced the display+digitizer+glass module). After the reassembly everything worked except for the digitizer (it worked before when i tested it). I tried to reconnect the digitizer connector (the tiny one which connects the digitizer controller to the display connector ) multiple times, but nothing worked. Has anyone faced a similar problem before?
Click to expand...
Click to collapse
Hi, I have exactly the same problem.
In my case, it's my second screen, so I've already eliminated the screen+digitizer and the cable connector like the origin of the problem.
Has anyone any idea?
Thanks!
PS: Ening, did you get to solve your issue?
much sad
agnobi said:
Hi, I have exactly the same problem.
In my case, it's my second screen, so I've already eliminated the screen+digitizer and the cable connector like the origin of the problem.
Has anyone any idea?
Thanks!
PS: Ening, did you get to solve your issue?
Click to expand...
Click to collapse
Bad news. My digitizer cable is damaged. On both original phone and the donor. I was not careful enough: the closer inspection showed it. I am going to order another screen or a donor phone (like a used verizon one or something) and try it again.
So the thing is that the video on etradesupply shows it wrong. You have to unstick the tape covering the digitizer cable connector, then unsnap the clicky thing, and only after that should you unplug the screen master cable (the one that goes into your PCB). Otherwise, it is very easy to damage the touchscreen controller cable (the digitizer one).
I really hope you have a different problem and there is still hope for your phone :crying:
Ening said:
Bad news. My digitizer cable is damaged. On both original phone and the donor. I was not careful enough: the closer inspection showed it. I am going to order another screen or a donor phone (like a used verizon one or something) and try it again.
So the thing is that the video on etradesupply shows it wrong. You have to unstick the tape covering the digitizer cable connector, then unsnap the clicky thing, and only after that should you unplug the screen master cable (the one that goes into your PCB). Otherwise, it is very easy to damage the touchscreen controller cable (the digitizer one).
I really hope you have a different problem and there is still hope for your phone :crying:
Click to expand...
Click to collapse
Hi Ening,
How do you check the veracity of the cable connector failure? I think I have the same problem than you, but I haven't a way to check it 100%, because I haven't anyone who can lend other screen to me, and the original screen it's now completely destroyed.
I suppose that I will have to send back the screen to the seller and ask for another.
Thanks anyway!
agnobi said:
Hi Ening,
How do you check the veracity of the cable connector failure? I think I have the same problem than you, but I haven't a way to check it 100%, because I haven't anyone who can lend other screen to me, and the original screen it's now completely destroyed.
I suppose that I will have to send back the screen to the seller and ask for another.
Thanks anyway!
Click to expand...
Click to collapse
Hi, i gave the phones to a guy in a repair shop and he looked at it through a magnifying glass
agnobi, I have exactly the same problem, but tested several digitizers and same problem
see my post here : http://forum.xda-developers.com/moto-g/help/black-screen-backlight-ok-screen-t2803431
did you solve your problem ?
Me too
The new digitizer doesn't work and now the 'old' digitizer dosn't work anymore
Everyone has found an solution ?
kyle77680 said:
Me too
The new digitizer doesn't work and now the 'old' digitizer dosn't work anymore
Everyone has found an solution ?
Click to expand...
Click to collapse
The flex cable part that connects the controller to the rest of the cable is very thin and easy to damage, you've to be very careful or you're gonna screw it (like the OP did).
ofcourse there is a slight possibility that it came defective, but you should have checked it right when it arrived. So far I haven't seen any incomparable ones, but who knows.....
liveroy said:
The flex cable part that connects the controller to the rest of the cable is very thin and easy to damage, you've to be very careful or you're gonna screw it (like the OP did).
ofcourse there is a slight possibility that it came defective, but you should have checked it right when it arrived. So far I haven't seen any incomparable ones, but who knows.....
Click to expand...
Click to collapse
I think there is something else.
On my side, the 3 digitizers (old one + 2 new) give me same result.
The I think the problem should be on the mainboard or a hardware/software blocking ... or maybe something we didn't re-assemble well
and little question : what is the role of this part (see my photo) ???
denseye said:
I think there is something else.
On my side, the 3 digitizers (old one + 2 new) give me same result.
The I think the problem should be on the mainboard or a hardware/software blocking ... or maybe something we didn't re-assemble well
and little question : what is the role of this part (see my photo) ???
Click to expand...
Click to collapse
Probably the last :>
That thin metal plate makes connections on the back of the PCB (its mounted right between the display and the PCB) and I think it connects to mass.I got no idea what it's role is (prolly its a fitting or some sort of heatspreader).I've assembled one phone without it and it worked just fine, but I've put it back afterwards, just for the sake of being complete
and your digitizer works fine ?
I think also that the issue comes from the connection PCB-patch or as you said software digitizer blocking.
So I 'll try to flash a retail rom to see it .... ...... The digitizer still not working
kyle77680 said:
and your digitizer works fine ?
I think also that the issue comes from the connection PCB-patch or as you said software digitizer blocking.
So I 'll try to flash a retail rom to see it .... ...... The digitizer still not working
Click to expand...
Click to collapse
I've replaced 9 digitizers on 9 different moto g's.None of em had any kind of these problems.This leads me to the conclusion that you've done something wrong.
The worst I had is 1 dead pixel on one of the new displays ( I'm using digitizer+display+frame assembly ).
liveroy said:
I've replaced 9 digitizers on 9 different moto g's.None of em had any kind of these problems.This leads me to the conclusion that you've done something wrong.
The worst I had is 1 dead pixel on one of the new displays ( I'm using digitizer+display+frame assembly ).
Click to expand...
Click to collapse
very interesting your experience ...
the strange thing is that we are several persons to have the same problem and the same symptoms ...:silly:
I've unsnapped the connector as they said in the video of etradesupply...
Maybe I've forgotten something.... you have followed this video ?
Edit :My screens are working except for the digitizer.
kyle77680 said:
I've unsnapped the connector as they said in the video of etradesupply...
Maybe I've forgotten something.... you have followed this video ?
Click to expand...
Click to collapse
I've followed this same video...
I don't see what I could have done wrong
liveroy : you never expected that black screen problem ?
---------- Post added at 04:25 PM ---------- Previous post was at 04:23 PM ----------
kyle77680 said:
and your digitizer works fine ?
I think also that the issue comes from the connection PCB-patch or as you said software digitizer blocking.
So I 'll try to flash a retail rom to see it .... ...... The digitizer still not working
Click to expand...
Click to collapse
I've also reflashed a stock ROM ... no change
so it's not software/firmware related ...
so it's hardware
Never, all worked the first time and afaik they are still working fine.Gotta mention that the ones I`ve used are chinise ones, but look and feel like the original, even the glass feels like gorilla glass 3, altough I don't believe that's the case :>
I have a huge scratch down my screen and the local mobile repairing guy quoted £55 to replace.. I thought this was a bit steep.. I expect him to use real gorrila glass 3 @ that price
Sent from my XT1032 using XDA Free mobile app
finally I've just fix my digitizer
It was 1 or 2 pin twisted on the right so there wasn't a contact between the PCB and the patch....
denseye I think your black screen can be fixed, you may see the pin on the left...." Bon courage " PM me if you have questions....
I've got now my earpiece which crackle but I thinks I'll not try to fix it....
Good night
You mean a pin on the pcb connector where thé LCD câble goes? (Français???)
A pin means a spindle which links the patch(LCD câble) to the PCB.There are many pins which compose thé connector.
(Yeah I'm french and i've sent you a MP.... "Dur dur le correcteur ortho ...")

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