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I wanted to change the touch screen on my QTEK 2020 and I bought a new one a few days ago. I opened tha PDA, but when I tried to pull the touch screen off, I damaged a slim orange cable on the back of the screen. Specifically, I pulled a black sticker and it took along the two cables that were on the circuit on the screen. I don't care for the touch screen's cable, but for the one of the screen. I have scratched the insulation on the cable and I have a question. If I just put over the circuit the nakes cable and glue it a little belower, would it make connection? Or have I to solder it? And How am I going to soldier a cable like this that's naked from the side that I don't see when I put it in place, without even melting and damaging for good the screen or the cable itself? I have some pics, too for you to see and understand what's going on. Please help me, as I am a young man with prospect and I want to learn things like this and do stuff more than the usual.
OK, I couldn't wait for advice so I soldered both cables. The screen turns on and it needs to be aligned. I tap the screen, the touch screen works, but when I finish the alignment, it starts from the beginning, the cross in the center. It asks to be aligned constantly. I haven't assembled the PDA, I have it like the pictre below. Is this the problem it doesn't start, or do I have to put the touch screen somehow differently? I have it centered and tried to align tapping a little upper, lower, left, and right from the cross, but nothing.
Please HELP!!!
OK, no worries! I fixed it! It took me all evening, but I'm completely satisfied. Solder this, solder that, make a bridge because a connection was damaged with all the scratching, but it worked!
cong. dominator happy that you have finally fixed it :wink:
Thanks Kbantikos my boy! And here's the bench and the heat tool I used! That's the only that I have. No doubt it took me 4 and a half hours to complete.
Congratulations! I'm not kidding, saw a lot of "homework" results, in some cases, display was damaged beyond repair.
You get the working display, so you are lucky .
Thank you, my friend! I didn't believe my eyes when it booted! It still works fine, even if it fell off my hands one time!
my touch screen is really quite dull / lacks brightness even when on the high setting
i've aquired an XDAII that isn't working but i know its screen was bright when it was working
my question is: what do i need to be looking out for / be carefull of when i replace the screen
what would you do differently?
thanks
Larry
You'll definitely have to look for that orange cable that's not of the touch screen. on the back side of the screen there should be a black sticker. When you try to pull it over, it takes the cables, too. So pull it from the side of the touch screen's cable only. You are gonna need to solder the new touch screen for sure, just placing it won't work. Scratch the side of the cable that's going to be placed on the circuit on the back of the screen so that the metal contact on both (touch screen's cable, circuit) is naked. Put solder on the circuit's contacts. Then put the cable on top of the circuit, but a little lower. Now, burn the solder holding the cable steady and connect that way all four contacts. I hope I was of a little help, observe my pictures and good luck!
Just about to try this myself.
Touch screen bought from - http://stores.ebay.de/hitechhk. Arrived within 1 week.
Removing the black tape on the back of the screen, even very carefully, pulled off both the connections for the touch screen and another connector (the back light I think)
In hindsight would recommend only removing the tape around the touch screen connector.
As soon as I find a small enough tip, will resolder everything.
Detominator7, how did you change your digitizer? cause i need to replace mine too, but the seller is talking about soldering it. i already open my pda and all i can see is there is only plastic cable. how do you solder on plastic?
Your touch screen might have a cable that plugs into a hole and does not require soldering. You know, like the fans we use on PC.
Dominator7 said:
Your touch screen might have a cable that plugs into a hole and does not require soldering. You know, like the fans we use on PC.
Click to expand...
Click to collapse
no, i already checked (disassambly my pda) i got the ribbon cable that attached to another ribbon cable at the back of lcd.
hi dominator touch screen 2020i
please dominator, could you send me or post a clear procedure about touch screen sostitution?
have I to cut some cable...?
sorry but i'm italian and i don't understand so well english!!
thanks a lot!!!
Dominator7 said:
Thanks Kbantikos my boy! And here's the bench and the heat tool I used! That's the only that I have. No doubt it took me 4 and a half hours to complete.
Click to expand...
Click to collapse
good job! I have the same problem and so i got a new touch screen but i cannot get over the calibration thing same as your problem before can you give me some tips as to what to do im just about to give up and get a new lcd.Only thing stopping me is the price of a new lcd.
What kinda adhesive do they use on the back of the screen
I'm talking about the clear glue type adhesive on the back of the screen in order to hold the ribbon in place
here's a pic of what I'm talking abouthttp://blog-imgs-3.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle12.jpg
The gold/copper ribbon glued to the screen
had to replace my brothers screen about 3 times and now its barely stickin
it's a kinda like double tape. u can find in office stores
I hard reseted my O2 XDA II & I had surprised the screen aligning can't be passed.
Can somebody help me with ROM Flash or maybe some hardware tricky?
I use WM5 from C_Shekar.
PM me if anyone replies this message.
Thanks, Berns.
Hello everyone,
I am new in your community and I hope you can help me.
I am searching for manual that explane LCD touch screen (digitizer) replacing for Qtek s100 for like 5 hour in Google.com and your forum.
I try diferent key-words in search options but i couldnt fined it.
The only thing that i understand from posts, that i find, is that there is a menual describing this process, but no one know where it is.
Please, if there is such manual, give me direct link.
Or you can discribe me what do do.
I can easy take apart my phone, but i cant separate Touch Screen from LCD screen. They seems to be glue to each other or somthing.
I will value any help.
Best Regards.
My Touch screen broken ?
Hello , i read your post today , and i don't have answers for your questions , but i am very interesting about your work , because last saturday my touch screen not work fine .... i attach 3 foto about problem ...
I need change TouchScreen ????
Thank you.
Andrea
Someone have the manual or solution for this now? We also need help.
I want buy this http://www.truesupplier.com/touch-screen-for-o2-xda-ii-mini-qtek-s100-i-mate-jam-pr-16436.html
I've provided the solution here:
http://michael-channon.spaces.live.com/blog/cns!4472423472DCFC38!272.entry
This is all that you need.
Click on the link for the HTC Magician.
These steps I already knew, what I need is how to mount the digitalizer because I think that is solder to the LCD, and this manual does not explain how, someone knows how to do?
The digitizer is 'glued' to the LCD screen. Don't wast time trying to separate the two. I've tried it. Just replace the entire screen assembly. They are cheap on ebay.
So why sell the digitalizer if there is no way to replace it with a new?
I didn't say it's impossible, but it doesn't make sense to go through that hassle. Buy a new screen assembly and be done with it.
Need to be solder, but with tool can I use to solder? Anybody could give me the steps how to off the old LCD and then solder the new?
It can be done with a regular soldering iron with a very fine 'tip'. Since you are using a fine-tip, you'd have to ensure that there is no circulation of air in the room (which will quickly cool the tip of your soldering iron). Obviously, you aren't going to do this in a 'cool' room either.
Personally, it makes better sense to simply replace the entire screen.
I'm now under the impression that Antix already bought the digitizer, hence he is being so persistent in separating the two components.
I have not bought, I saw on eBay this digitalizer very cheap http://cgi.ebay.com/LCD-TOUCH-SCREE...photoQQcmdZViewItemQQ_trksidZp1713.m153.l1262, but it gives a lot of work I go buy a complete screen.
Thanks
done it
Hey, i just separated the digitizer from lcd and change it for new one. I used adhesive cleaner to soften the double sticky tape holding digitizer on the lcd. Moddeling thin knife to cut it arround (ull probably will crack the digitizer, i did ). Clean the contacts on the other side where the ribon cable goes, put a litle solder onto each one of the four of them. Do not forgot to use the soldering paste and good clean soldering tip. Put some double sticky tape around the lcd, cut it as required, attach new digitizer. Clean the end bit of the new ribon cable with lighter, so that only cooper lines are wissible. use fine sand paper to clean off the cooper . Put some solder on to the ribon cable, again use the paste. then solder it on to the lcd ribon. on the end put some (electric) tape over the joint to keep it strong and assemble your htc again. Works wonders, and does not cost £40 for whole new screen but only £6-7 for the digitizer.
cheers
I now have a great deal of respect for you since you were able to pull-off such a delicate procedure.
I want to replace cracked screed with new LCD with digitizer and went thru service manual. I am struck at the point where I have to remove antenna cover before I can go ahead. Can somebody please help. I am from small town in India with no service centre. Got new original LCD with digitizer via ebay.
amit200465 said:
I want to replace cracked screed with new LCD with digitizer and went thru service manual. I am struck at the point where I have to remove antenna cover before I can go ahead. Can somebody please help. I am from small town in India with no service centre. Got new original LCD with digitizer via ebay.
Click to expand...
Click to collapse
That is a real hard peace of work an the possibility to destroy the device completely is quite high. Heres another thread:
http://forum.xda-developers.com/showthread.php?p=3807619#post3807619
Thanks for the link but not sure where to insert the flat plastic tool on over the USB socket or below it. Please help
Victory, I managed to sucessfully repair my HD today.
Parts needed:
Digitizer ~ € 25, --
LCD Display ~ € 74, --
------------------------
Total: € 99, --
Time: ~ 3 hours
Difficulty: high
Special precautions:
After complete dissembling the HD according to the service Manual you can find in the net you will have to lever the display out of the front bezel from the front side. It is very likely the color and the frame will be damaged a bit! It's best to use a fairly broad plastic "spatula" and lever the display out. It should be noted that the glas of the digitizer is glued to the LCD display so it is very unlikely to repair the HD in case of a broken front glas by only changing the digitizer without changing the lcd display as well. This is unfortunate because digitizer is available very cheap (under € 30, -) over the Internet and usually only the glass of the digiziers breaks.
So who likes the risk and doesnt want to pay the horrendous costs of repair stalls here is the first case of a positive self-repair. PN if you want details. I am sorry but I have no pictures, because I repaired the HD at work and had no cam there.
Hard to replace LCD for touch hd
It is really very hard to replaced Lcd screen and digitilizer for touch HD.
I replaced mine last night for 3 hours. But before you start to separate the lcd from the case you must have a double sided tape for you to be able to return the lcd on the case. The tape will also serve as a sealant to your screen from dirt and to hold the screen on the housing.
Broken LCD
Yes, it's hard to change the digitizer.
I tried, I failed.
As my digitizer was broken (one can see a kind of watering effect, and no press effective anymore), I bought just the digitizer alone, without lcd screen.
12 € incl shipping. Nice price.
Here is what I received : cf. joined img 1248 (images are at the end, need moderator green light to do better. note : larger version available on frapi.com/vrac/cimg1248_rs.jpg.html (click on image for the others))
Seems OK. The plastic tool is bull**** (too soft to unclip the antenna)
With the help of the service manual, it wasn't so hard to dismantle it like that :
cf img 1251
Now the tricky part, level one :
you have to break apart digitzer+lcd+metal shield from the rest
cf img 1253
Be very careful when opening. try to lever only on the digitizer glass, that you will change anyway. You also have to unstick the metal shield under the LCD, because of the wiring there, attached to the digitizer :
cf img 1252
OK, done, you have that, digitizer+lcd :
cf img 1254
Now the tricky part, level two :
Split lcd from digitizer.
Just avoid doing that :
cf img 1257
cf img 1261
if you don't want to end like that :
cf img 1265
Don't ask, I don't have the recipe.
--
Frapi
PS : just bought a combo digitizer+lcd, quite more expensive. stay tuned
LCD manufacturer
Hello,
can anybody of you tell us the manufacturer of the display ? May I ask you to provide a readable picture of the labels behind the screen ? Or to write us the text on the labels ?
Many thanks, best regards Wolfgang
How do you fit the cable between the digitizer and lcd screen? Is it just a connector or do I have to solder it?
laban333 said:
How do you fit the cable between the digitizer and lcd screen? Is it just a connector or do I have to solder it?
Click to expand...
Click to collapse
No soldering. digitizer to lcd board is clipsed.
--
Frapi
Bigger picture ?
Hello Frapipda,
may I ask you for a bigger picture of your thumpnail cimg1252_tn.jpg ?
If I can read the labels I would try to get a detailed specification of the display.
Many thanks, best regards Wolfgang
Hi all,
From the bottom is the lcd screen, after a black thing, and after is the digitizer glued on the top glass...
What is the name for the black transparent thing that goes between the screen and the digitizer? It is flexible but I accidentally made it to curve and now it has some marks inside.
frapipda said:
No soldering. digitizer to lcd board is clipsed.
--
Frapi
Click to expand...
Click to collapse
Frapipda: You say its clipsed, but I cant manage to connect the tiny plastic digitizer contact with the lcd one. Do You have some advice?
I found out now. You have to lift one part of the contact...
frapipda said:
Yes, it's hard to change the digitizer.
Frapi
PS : just bought a combo digitizer+lcd, quite more expensive. stay tuned
Click to expand...
Click to collapse
Hi again,
Eventually bought a standalone LCD screen, came pretty quickly from HK (paid Friday nite, received today Wenesday in France).
was quite easy to install.
One tricky point :
LCD is glued on digitizer ; LCD position is paramount, and you have to insert the LCD in the phone body, then place the digitizer on the LCD, so that they are correctly positionned one to each other. If you don't, you won't be able to close the phone.
Phone is OK now
--
Frapi
got it today
I got the plastic tool, the torx screwdriver and the lcd+ digitizer for lessthat $20 cdn, i have exams going on so i will work on it over the weekend, will post with extreme details and possibly a video on HOW-TO change the digitizer!
osamaali, any luck yet?
lol
im not going to post a video because a major **** happened, due to lack of knowledge around on the net i should say this clearly that YOU HAVE TO PRY OPEN THE LCD SCREEN FROM THE FRONT! use a thin yet broad and strong object to go between the side wall and the screen and start pulling, i used a knife and cut all the way around before i started prying to cut the glue which is stronger than "Arnold" and all the dismantling from the back is to get to the chip where digitizer is plugged in.
when taking the screen off i took off the main screen, then the touch resistor screen and then the glass at the end (3 layers total). the glass is also stuck to the main "monitor" this is where the colors come from, i got impatient and pulled it hard enough that the monitor did not get time to detach.
i ordered the monitor lcd, im going to edit the video for final upload. sorry for the delay but everyone now know
YOU HAVE TO CUT AND PRY IT OPEN! if you guys get stuck pm me and i'll reply here. also i got the touchscreen to work but killed my monitor, i can still use the phone but the bottom 1 inch is blacked out.
GL HF!
Prying it open would only cause a mess, with broken glass falling. I like to work in a clean environment so i just get a hair dryer, switch it to high and do a figure 8 on the screen. Sure it takes quite a long time to get it off but trust me it comes off in one piece. The only problem i got now is putting the button on correctly. I aligned the buttons but once i put the lcd+digitizer on the buttons would get jammed or stuck. End call button is still clickable but the rest are jammed. PM me if you can help me or just email me at [email protected]
Today I aquired a HTC Trophy with a cracked screen.
It was not cost effective to have it replaced by the workshop, so I'm attempting to replace it myself.
Following the MicroSD replacement guide by DominikZ, it's been a fairly simple and straight forward process, but I have now come to a point which I'm not sure how to proceed.
I've gotten to the point where I have the two ribbon cables disconnected, and have now separated the systemboard from the front. The front frame now contains the LCD, digitizer and speaker.
Does anyone have some tips on how to proceed from here?
What about the other 3 (black) screws? Torx 6?
nlamer said:
Today I aquired a HTC Trophy with a cracked screen.
It was not cost effective to have it replaced by the workshop, so I'm attempting to replace it myself.
Following the MicroSD replacement guide by DominikZ, it's been a fairly simple and straight forward process, but I have now come to a point which I'm not sure how to proceed.
I've gotten to the point where I have the two ribbon cables disconnected, and have now separated the systemboard from the front. The front frame now contains the LCD, digitizer and speaker.
Does anyone have some tips on how to proceed from here?
Click to expand...
Click to collapse
hey man, i hope that the following site can help you abit.
i was mugging around at the "xda cn" just a minute ago,
and i saw some one had a post tutorial about how to rip out the HTC 7 Trophy safely.
(the site is below my comment), well it is all in chinese, i guess you properly won't be able to read it but the good news for you is....all these stuff is always with photos...and not just one and two...is alot...alot of photos
the photos are very details, i guess it should be able to help you out with something even a little.
Good luck with that, and once you jump in to the site...once you finish looking at the first pic, click the page 2 it will brings you to the second page, and keep looking, u should be fine with that even you don't understand the chinese..
The site:
.............
damn i'm not able to post link as im a new user in this forum
let see if you can read the link below(replace the lttp to http,xxx to www)
lttp://xxx.xda.cn/newshow.php?snid=1017&page=&pages=1
Kind Regards
Lance
Thanks for the tip Lance The pictures were easy to understand, especially when I don't read chinese.
However they did not cover removing the LCD and digitizer.
matthijs81 said:
What about the other 3 (black) screws? Torx 6?
Click to expand...
Click to collapse
The three screws on the back of the lcd casing is not screws. Those are threaded cylinders, for attaching the front with the back.
Hey there
how far have you got with repairing the screen as I also acquired a HTC Trophy with a cracked screen. The phone still works so there is no rush but I need to know what I need to repair this unit?
Hey.
No progress so far. I'm not sure how the glass is attached to the front housing, but I have an idea that it might be glued on from the front.
You may be able to extract the glass from the front by using a hairdryer and something thin, like a razorblade. However I have not tried this yet, so I can't say for sure.
Good luck ;-)
There are digitizer replace videos for the htc desire:
youtube.com/watch?v=sXZqIjtFoAU
If the Trophy is build in a similar way you can see how you to remove the glass at 4:00
You can use a hair dryer instead of an oven.
Hi folks, been a long time lurker, came here after looking for a solution to this very problem, so, nlamer here's how to do it, be warned though it's not an easy repair.
(och, I cant post image links until I have made 8 posts :-S )
see attached photos, i'll prob need to do a few replies to post them all.
1:- Strip your phone down and remove the logic board from the chassis, carefully remove the lock tabs to release the ribbon for the LCD & digitizer
2:- Use a heavy duty knife ( I used a stanley blade ) to slice the adhesive holding the LCD to the digitizer, it's only held round the edges so you dont need to go too far in
3:- Peel back the cracked digi and just slice the ribbon, it's attached to the back of the LCD and your not going to be using it again anyway
4:- The LCD is held in place with the light grey adhesive strips, use a spudger to remove it, just be careful not to put too much pressure on it or you will damage the LCD, in my experience it's always better to have a replacement on standby just incase
5:- A quick check to make sure the LCD is still ok, you never know!!!
6:- On the old digi you will need to remove the three clear plastic tabs at the bottom and transfer them to the new one, these feed the LED's to the capacitive button's on the bottom, they are held in place with some adhesive & are not difficult to remove
7:- Remove all the old adhesive and apply some knew strips, I used 3M stuff here and trimmed it to fit but I dare say there are adhesive kits available on eBay
8:- Do the same to the LCD
9:- Line up the LCD with the marks on the digitizer and press it into place, the digitizer ribbon has a small piece of adhesive to attach it to the back of the LCD
10:- Place the display into the chassis, make sure the ribbons go through the gaps in the chassis and everything lines up before committing to pressing down
11:- If all goes well after re-assembly it should be looking sweet again.
Hope that helps yourself & other's out ;-)
Regards
Thanks for the instructions irepairtechstuff. It is greatly appreciated. I almost have my device wrapped up, and ready to go, but I'm having some trouble with the digitzer.
It seems behave as it pleases, and does not register pushes and swipes as it should be. Any tips on this?
Nevermind the last post.
I cleaned the connector with some alcohol, and now it works perfectly
I just got a trophy, I don't understand the adhesive verry well. I though you had to put adhesive on the underside of the touchscreen digitizer (along the edges of the screen) and on the metal frame, under the lcd or the underside of the LCD, but in this turtorial you see adhesive along the edges of the upside of the LCD?????
HELP!
Is there nobody who can help me?
Try private messaging the users who manged to get this to work. They should receive and email and might be able to come back and look at this thread.
Hello guys,
My HD2 was fallen on his screen yesterday. He seems to be in good state but it is just in aspect, the screen don't display anything except white strips and, the touch ability seems not working at all (When I press to do a slide to unlock nothing happens => no vibrations). In the right hand corner, the lcd screen seems to be a little broke.
You could see the problem at this link: http ://img25.imageshack.us/i/imgp0001by.jpg/
Do you have any ideas of causes of this? I have to change lcd screeen and capacitive screen? And it is possible to do it of my own?
Thanks for your answers and if you have any tutorials or other help, I'm grateful.
Darklink88 said:
Hello guys,
My HD2 was fallen on his screen yesterday. He seems to be in good state but it is just in aspect, the screen don't display anything except white strips and, the touch ability seems not working at all (When I press to do a slide to unlock nothing happens => no vibrations). In the right hand corner, the lcd screen seems to be a little broke.
You could see the problem at this link: http ://img25.imageshack.us/i/imgp0001by.jpg/
Do you have any ideas of causes of this? I have to change lcd screeen and capacitive screen? And it is possible to do it of my own?
Thanks for your answers and if you have any tutorials or other help, I'm grateful.
Click to expand...
Click to collapse
The cause is obviously it being dropped. Yes you have to change your screen if you don't want to have a broken one and may have to get a new digitizer. I don't know you so I don't know if you have the skill to do this yourself. If you have a warranty then carry it back so they can fix it, if not (or that's not covered under it), take it to a cell phone repair shop. They should have the equipment to fix it (digitizer, lcd, etc..) and you can pay for the service and equipment there.Hope this helps.
Thanx a lot theonew I try to see that quickly!
Do you have some reference on the web to get this components? A serious website selling this both components?
Darklink88 said:
Thanx a lot theonew I try to see that quickly!
Do you have some reference on the web to get this components? A serious website selling this both components?
Click to expand...
Click to collapse
You could go here: http://www.dinodirect.com/htc-hd2-t-mobile-touch-screen.html and here for lcd (with tools for installation is optional): http://www.smartphonebay.net/LCD-Screen-for-HTC-HD2-p/lcdp-htct8585.htm. I could not find both on one website. Anyways, I hope you can fix your phone.
Ok, to fix my phone it's 200 euros, I'd like to try to fix it on my own and now I'm at this point: http: //img835.imageshack.us/i/imgp0001c.jpg/ and this http: //img59.imageshack.us/i/imgp0002le.jpg/
(Thx to official disassembling video)
Someone have a tips to separate screen from digitizer??
Darklink88 said:
Ok, to fix my phone it's 200 euros, I'd like to try to fix it on my own and now I'm at this point: http: //img835.imageshack.us/i/imgp0001c.jpg/ and this http: //img59.imageshack.us/i/imgp0002le.jpg/
(Thx to official disassembling video)
Someone have a tips to separate screen from digitizer??
Click to expand...
Click to collapse
Well, You always can buy LCD and digitizer from eBay, taken apart or already assembled LCM (about 80-120$ for digitizer+LCD module). You have to be careful which model you buying if you decided to buy LCD and touch apart, both must be for European version of HD2. LCM assembly are compatible for any model of HD2 LEO, I've tested both T-Mobile and EU at my EU version of HD2 and they worked very good.
Separating the digitizer is not a easy job, most cases you have two broken pieces in result, but if you still want to separate them, first thing to do is to heat them to about 60*C (Celsius degree), then separate digitizer from LCD with a sharp-edge thin plastic sheet, i.e. a credit card with sharpened edge. LCD and digitizer are sticked together with a kind of black double-sided scotch tape, it is easy to see it but it is very easy to damage digitizer during this process due to very thin Indium Oxide wires on it that is easy to scratch.
The best thing is to buy fully assembled new LCM and simply replace your old LCM. In addition You nave to remove old LCM adhesive from phone housing to assure proper alignment of your new LCM. It can be removed with ethanol or isopropanol (take a cloth, wet it well with same alcohol and gently rub the grued surface until it will be clean).
Here are the Official HTC HD2 Disassembly/Assembly Training Videos but there all components are new and unused.