yashsingh1/xdaforums huggingface dataset:
[HD2 General] FloatHeavy:
I posted in another thread about the issue of digitizer being glued to lcd. I had more pics to show, and decided disassembled pics are useful to all! So new thread for full set! If you want more I can get more! If I get enough questions I might make a tutorial for dis assembly.

General Disassembly

Slideshow:

http://img96.imageshack.us/slideshow/webplayer.php?id=htchd2wificam2.jpg

Desoldered Digitizer Pics

Slideshow:

http://img705.imageshack.us/slideshow/webplayer.php?id=htchd2desolderedtermina.jpg

Digitizer Removal w/ Razor

Slideshow:

http://img696.imageshack.us/slideshow/webplayer.php?id=htchd2digioffrazor.jpg

ENJOY!

This really is a great phone!
[HD2 General] brandi:
can't see anything. please use a different host :(
[HD2 General] FloatHeavy:
Fixed problem!
[HD2 General] young blade:
OH NO!! what HAVE U done!!!:eek:
[HD2 General] FloatHeavy:
I know...The horror...I haven't re-assembled to see if still working...HA!

I disassembled because of a cracked digitizer.
[HD2 General] Tokolosh:
looks like a fur or "plastic" carpet, hope you don't end up with ESD related problems :rolleyes:

ESD as in ElectroStatic Discharge ^^
[HD2 General] FloatHeavy:
Phone still works just fine.

If anybody knows how to un-solder the digitizer away from the lcd, help would be appreciated!
[HD2 General] FloatHeavy:
New images added.

Next up:

digitizer/lcd separation
[HD2 General] chalid:
any updates?
[HD2 General] chrisdadd:
Have you managed to fix it yet?

We all want you to succeed so we can operate on our own cracked ones! Maybe you need the "unglue" chemical - you know, like superglue has an antiglue for reversing it's stickiness. If you could find out what glue bonded it, then a specialist adhesive supplier probably knows how to reverse it.
[HD2 General] XiDiX:
I'm sure you'll like this (if it isn't posted here before...:))

http://pocketnow.com/hardware-1/official-htc-hd2-disassembly-assembly-training-videos-leaked
[HD2 General] tamas970:
Still not clear, has he finally removed the lcd on that video from the digitizer? to me it looks they're still cemented:mad:
[HD2 General] Halle:
Well if they're cemented (hopefully with some hyper-glue), thats a GOOD thing. Then this will be (hopefully) my first device with NO dust under the glass. :)

Don't you people have insurances on your devices? ;) Talk to the ensurance company and you will get a new device for a small excess - that is, if it's beyond repair :rolleyes:
[HD2 General] chalid:
its not ... I have dust under the displayglass.
[HD2 General] anx7501:
Floatheavy, and everyone else.

I'm currently on my second HD2, first suffered a hairline crack on the digitizer and it went COMPLETELY unresponsive. After getting the second, I had nothing to loose and disassembled the first. I got everthing apart up to the LCM, this module has everything (the glass digitizer, the LCD and the backlight) all cemented together. As I took the phone apart, priodically I would test that it still worked - everything except the digitizer. When I tried to separate the digitizer from the LCD and baclight I ended up tearing the layers of the LCD apart, now one layer is still glued to the digitizer and one is still glued to the backlight. I have yet to see how this can safely come apart and untill I can buy the LCD the phone is totaly screwed. I think one has to purchase an entire LCM and not just the digitizer.

For those that want to try separating the digitizer - BEWARE, noone seems to have found the secret yet! If I manage to discover something new I'll post.
[HD2 General] FloatHeavy:
Yeah. I tried the heat method to separate the digi from the LCD...

No luck

It seems it is more than the simple adhesive broken down by heat.

To get the bezel away from the LCM you can use heat to make easier, but to get the digitizer away from the LCD itself remains a mystery to me.

Anybody get any other results?
[HD2 General] FloatHeavy:
OKAY..

Pics updated again...

I was able to get the digitizer apart from the LCD, using a razor.
[HD2 General] mobile.shon:
for separate lcd and digitizer

For separate lcd and digitizer, I used nylo fisher string... and it work good... just right my problem is how to past new one ? neopren glue ?
[HD2 General] FloatHeavy:
Honestly, I plan on just adding a dot of super glue to each corner.

I believe most phone adhesives are a sylicon based glue.
[HD2 General] Amokh:
It`s almost impossible to un-solder the digitizer away from the lcd, i have succeeded a few times whit hot air and very sharp cutter, but still broke 2 screens from 5...it has to be a solution for this...anyway 3 phones from 5 its not the best rate...
[HD2 General] FloatHeavy:
Whoa. You have to learn to solder/desolder CORRECTLY, take it to a local electrician, they can hook you up in three minutes guaranteed. It's a method, not a scrape it till you make it type deal.
[HD2 General] tudorlv:
buy a new lcd+digitizer combo

i got my beloved leo's screen damaged by sitting accidentally on it. of course htc sayd no way they repair it under waranty, and it will cost me about 280 usd. i went to a local but very good gsm service and they told me they cannot remove the lcd from the touchscreen without damaging the lcd (not the touchscreen though ), but in my case the touchscreen was broken. they said also that i can order both lcd and touchscreen from them (about 200 usd including assembling) but separate, in my country there wasn't available the set already assembled, and MOST IMPORTANT ! they sayd that it is identical with iphone 2g assembly, so that it is impossible to glue them like from factory, so it will get some glue on the lcd if it is too much, and in any case surely it will remain some unglued space so dust under screen will eventualy apear.

anyway, i decided to do the operation myself and broken the lcd like you will see in pictures, bad luck, because i managed to remove the ret pretty easy. apart from the red marked zone the lcd is perfect, only dust and remaining glue.

but again even if i succeded, there is no way to glue it properly to a new touchscreen.

i started to google for a full set, i was adviced to not take it from china, no offence, but it is very likely to be a low quality copy.

i ended up here for 131 usd, http://mobile.brando.com/htc-hd2-rep...c0696d088.html but it is likely to find it elsewere aswell, hopefuly in EU
[HD2 General] pckshd:
So was that part (LCD+glass) easy to install? any special tools needed?
[HD2 General] lemonspeakers:
sfjh.clkygh
[HD2 General] tudorlv:
not at all, just like in the official assembly video. the hardest part would be glue-ing and maybe soldering if the 2 parts were separate, but they are not.

at assembling point you will need only the t5 screwdriver
[HD2 General] pckshd:
No soldering? what about the connection to the mainboard chip?
[HD2 General] tudorlv:
again, man

If you have buy the complete lcd (backlight+lcd) + touchscreen in one piece already glued and connected you will have only to connect them to the motherboard NO SOLDERING. but just to make sure call the seller and ask him if the LCM comes comes already soldered and glued. and then, piece of cake.

Again if you freak out by doing it by yourself go to a gsm service, they will assembly it for you for less about 3 to 10 euro but it is really easy

http://pocketnow.com/hardware-1/official-htc-hd2-disassembly-assembly-training-videos-leaked
[HD2 General] pckshd:
Thanks... !
[HD2 General] brettsorby:
since you have one in peices is there any chance you can make me a wallpaper? iv been after a square on picture of the gubbinz behind the screen to use as a wallpaper but the only dismantled pics i can seem to find are from the back and at dodgy angles. if its at all possible could you do me a decent quality, correct resolution wallpaper pic of the internal parts directly behind the screen? i would be very greatful :) :) :)
[HD2 General] objecttothis:
FloatHeavy,

Couple questions. What did you end up using to glue the new digitizer and LCD? Were you able to prevent bubbles, or particles from getting between the digitizer and LCD? if so, how. Also, if heard that the T-Mobile (US) version doesn't require the digitizer to be unsoldered from the LCD... do you know anything about that?

I just picked up an HD2 with a cracked digitizer on eBay for $260 so if I can just replace the digitizer I'm looking at getting my hands on the HD2 for around $300!
[HD2 General] buckyoufill:
Someone give me an HD2 with broken digitizer, so i order one from a hongkong seller on ebay.

Disassembly is piece of cake (FYI : In my case, some kapton are missing in the video, especially on sides of chassis).

But separate digitizer and LCD was a little bit more difficult. I use a too thick cutter blade, so I broke LCD.

So I suggest people who wants to try to use a very thin razor blade.
[HD2 General] objecttothis:
OK, questions about separating the LCD from the digitizer:

- for those of you who busted the lcd using a razor, was it by puncturing the LCD that you did it, or by putting too much flex on the lcd or what?

- Someone mentioned that they used fishing line to separate the two. Is this less likely to cause damage? Does anyone besides that one person have experience with the fishing line?
[HD2 General] objecttothis:
I just ordered the T-mobile version of the digitizer. I emailed the seller and they told me that it doesn't have the T-Mobile logo at the top. BONUS!!!

The install should go pretty well. Here is the list of supplies that I've ordered/expect to need:

- TMOUS Digitizer

- 3M double-sided tape (2mm)

- Exacto Knife

- #0 Philips head screw driver

- T5 & T6 Torx screw driver

- pry tool

- Mt. Dew

- Good music
[HD2 General] dinhy34:
i understand that you used the double sided 2mm tape to combine the lcd and digitizer but what size double foam tape you used to combine the lcd to the chassis?
[HD2 General] objecttothis:
I haven't received the replacement screen yet (it's being shipped from Hong Kong). After watching the leaked disassembly video I just planned on reusing that double sided foam tape that you're talking about.
[HD2 General] xspydaweb:
>.< Tried to repair but might've made worse

I recently ordered an LCM module to replace the broken LCD on my 9193 Leo. I did so, and the LCD works, but the buttons don't...Upon further inspection, I tore the small ribbon described in the LEO repair video as the "AP FPC" on the main board. FML!!!!!! So now, I have a phone that works, but none of the hard keys work (As one could imagine, it'd cause a lot of complications). Does ANYONE know where I would be able to purchase individual ribbons or pieces that attach to the mainboard...? I'm desperate.:mad::confused:
[HD2 General] objecttothis:
That's sucky. I think you're the second person that I've read about ripping the ribbon cable. I will have to be extra careful when I pull this thing apart. I can only think of a couple options for you.

- you could buy a busted HD2 and take the parts you need then part out the rest to other people (I'm sure there are others who bricked their phone that would want the motherboard.

- You could send a message to the sellers on eBay that are selling the LCD's and digitizers and ask them if they can get ahold of the part for you.

- You could call HTC and send the phone in for repair. I'm guessing $50 for the ribbon cable replacement.
[HD2 General] xspydaweb:
Damn, hmm. Well I sent a bunch of questions to a bunch of guys on ebay about it. Shoot, if anyone can link me to any direct information, or even the whole keyboard unit with the flex attached...I'll send you $10 via paypal lol. Sorta desperate over here.
[HD2 General] xspydaweb:
Spare HD2 Parts anyone?

Does anyone have a broken or otherwise useless LEO that they've been considering selling for parts? I don't need the whole unit, but just the internal keyboard unit that attaches to the motherboard, along wit the flex cable. If anyone has one, I'll pay like $40 for just that part. Let me know? :(
[HD2 General] objecttothis:
Digitizer replaced!

Disclaimer: Below are my notes for my replacement of my digitizer. If you try to replicate any of these it is not with my recommendation. If you break your phone, call 1800 I DONT CARE or 1888 IM NOT LIABLE.

With that said I finally received the digitizer for my US HD2. Be warned that as with anything from East Asia, the delivery was very slow. Here are my notes:

- Purchase the right digitizer! The TMOUS digitizer has a small latch-type connector. All other versions require soldering and they are not compatible.

- Purchase 2mm 3M double-sided tape. If anyone wants it I have a whole roll ($7 and its yours w/free shipping)

- when you use an exact-o knife to separate the LCD from digitizer do not use it to pry. Use low pressure swipes down the sides and the top until the adhesive is separated. BE PATIENT WITH THIS PART.

- Be careful when separating the bottom adhesive. If you slide the exact-o knife like you did for the sides and top you will slice the digitizer cable... this isn't horrible because you're replacing the digitizer anyway, but it's best to be careful at that end.

- Use needle-nose pliers or tweezers to carefully remove left over adhesive.

- The cool benefit of the digitizer that I got was that it doesn't have the T-Mobile imprinted at the top! I love unbranded stuff :)

- Make sure that you replace the adhesive that goes between the LCM (LCD/Digitizer) and the chassis. Otherwise the phone will only be weakly together with risk of falling apart since the main chassis doesn't hold the screen in incredibly well without good adhesive.

- Be very careful when messing with the cable for the keyboard. A couple people have already reported ripping it and currently no one can seem to find a supply of these parts except to buy a broken HD2 or send their phone into HTC (both lame options in my opinion).
[HD2 General] esraymuk:
http://img96.imageshack.us/i/htchd2wificam2.jpg/

You see the orange strip thing, what is it precisely? I had my phone "repaired" at a repair store and they ripped it with their incompetant handiwork.

Are these parts replacable/purchasable?
[HD2 General] FloatHeavy:
I don't see an "orange strip thing". Are you talking about the copper foil adhesive? That stuff usually comes with purchase of middle housing repair part.
[HD2 General] FloatHeavy:
Oh, and people. As far as using an adhesive to put digitizer and lcd back together....DO NOT USE SUPER GLUE. The LCD goes all the way do the edge and I say you have about 1mm buffer. I used the double sided 3m sticky stuff they have for ipod touch digitizers. Not the same double sided tape that holds the LCD to the housing, this sticky tape is veeeerrrry thin. I reassembled, placed between a firm pillow and sat heavy books on it and kept it there for two days. Hasn't failed me yet. I have repaired two of these now. One of them I just purchased a new LCM alltogether instead of doing the digitizer thing again.
[HD2 General] esraymuk:
I'm talking about the brown-orange thing with lots of coppery rectangles on it. The thing that goes right across the middle of the picture. The top right hand side of it is ripped on my phone. It seems to be some sort of connecting strip.
[HD2 General] waza123:
Replace touch screen for htc h2

Manual - http://xdaforums.com/showthread.php?t=701003
[HD2 General] tomasz:
Hi FloatHeavy,

Do you still possess the broken digitizer?

If so, could you take a look at the ic on the digitizer's 'flat cable'? The text on the chip (underneath the barcode sticker) might provide extremely useful information for the guys over at the linux-porting thread... So if you could provide a sharp photograph of this chip without the sticker on it, or post the text that's printed on the chip..?

Edit: the chip i'm referring to is the one in this picture: http://img692.imageshack.us/f/htchd2digiterminal2.jpg/
[HD2 General] zaraman:
Glue problem?

Hey guys,

A few days ago I manage to forget my HD2 in my back pocket and I sat on it for 30 min. My screen glass is not broken but now I have a weird spot on my display. I observed that when I heat the glass with a hair-dryer that spot disappears and then comes back again when is cold. Do you have any suggestions hot to make that glue stay?

http://img594.imageshack.us/i/imag202.jpg/

http://img10.imageshack.us/i/imag201.jpg/

http://img808.imageshack.us/i/imag200.jpg/
[HD2 General] Sibron:
I sent mine in for repairs as i didn't want to mess with the warranty, cost AU$308.00. :(

The only plus(other than it looking new again:p), is i can claim it on tax.

Stilll damned axpensive though.
[HD2 General] radarhunter:
You are one brave guy to do this to your HD2
[HD2 General] OfficeLinebacker:
it's some kind of ribbon that connects the top circuitry to the bottom circuitry of the phone. does the phone not work? if it works, count your blessings.
[HD2 General] AlCapone:
does it use CCFL or LED for backlight ?

I got one with no backlight, otherwise fine, (it just stopped illumination the display one day).

I guess if it's LED, it cannot be defective, then there is no point in disassembling/replacing the display..
[HD2 General] keithsipa:
So, is the tmobile digitizer slightly larger than the euro digitizer? I am looking to replace an lcd on a T9193.

Without having the phone apart yet, I would guess that this, would be the choice of assemblies for a T9193?

The only other choice I can see is this, which seems to be the tmobile assembly.

Any comments...
[HD2 General] stragulus:
Here's a handy repair tip: Do not try to cut corners when disassembling the LCD+Digitizer unit from the rest of the phone. It is possible to disconnect the unit's flatcable from the mainboard without first disconnecting all the small parts on the mainboard/camera pcb. However, you'll then have to pry in the lcd flatcable using a large 45-degree angle, and the connector is too fragile for that. Cost me a mainboard, as the connector wouldn't properly hold in the flatcable anymore, which resulted in a malfunctioning lcd unit (not all signals were properly connected, which made the colours look dithered).

So the proper way, as shown in the videos, is to make sure that the LCD/Digitizer unit is still fixed to the chassis, so that you can easily slip the flatcable into the connector.

I'm hoping I'm able to acquire the mainboard of someone elses HD2, who messed up the LCD when trying to pry it apart and then gave up.
[HD2 General] OfficeLinebacker:
I think something like this happened to me once. I ended up using a piece of business card to press on the white connector and that helped. I know exactly what you mean in terms of the dithering effect.
[HD2 General] stragulus:
Good to see I'm not the only one :)

Sadly I ruined the connector completely because I thought the problem was something else (switching back and forth between 2 lcd/digitizer modules), and by the time I figured it out, the latch had worn out. Learned a valuable lesson here!

The toughest part (replacing just the digitizer) worked out relatively well thanks to the separation tips here. Just have yet to find the 'sticky stuff' to hold lcd + digitizer properly together, as reusing the old adhesive was not good enough to properly close it up, resulting in dust and 2 white spots near the corners.
[HD2 General] keithsipa:
I have been repairing a few iphones lately, and I would suggest buying a 4 sided digitizer adhesive for a 3gs. It is usually 3m double sided adhesive. The reason I say to get the 4 sided stuff is there is about a 2"X3" piece of adhesive in the center that is not cut for the iphone. This can be cut and used at your will. This stuff is very, very sticky. It would look something like this:
[HD2 General] stragulus:
How would you use that? Is it big enough to cut out the frame? Or do you cut out very small strips for each side of the screen? Sounds like a painfully difficult job.. is there a trick to do that easily? Using a ruler and one of those surgical knives?
[HD2 General] keithsipa:
Keep in mind I havent done one, yet. But, since there is no off the shelf solutions, sometimes you have to be creative. Yes, you would have to cut the adhesive yourself, and yes an exacto knive, or vinyl cutter, or a pair of scissors for that matter should do the job nicely.:)
[HD2 General] stragulus:
I ended up using the thin double-sided tape I already had. It's quite strong, as it's normally used to glue extra logo's and what not to cars. This worked out quite well.

I started by cleaning the LCD + front glass inside with rubbing alcohol and a few kleenex tissues. After that, I started with the tape.

For the long ends, I took a piece of tape running along the entire length, and carefully placed it such that only a narrow strip would cover the LCD. Then, I pressed down the front glass with digitizer with the top of the tape still covered by plastic film, so I could then easily slice off the extra tape protruding from the side.

The short ends I did by cutting off small trips of tape, and using pliers to carefully place them on the lcd/chassis. When all sides were covered, I used a q-tip with alcohol to clean off any remaining dust and finger prints.

I then used the pliers to pull off the plastic film, and then slowly manouvred the front glass into the right position. Extra care must be taken to make sure the hardware buttons are correctly aligned, or they will not work (that, or you have to take the phone apart again, which I didn't want to do!). The pliers were helpful here as well to manouvre it without having to touch anything with my fingers.

With the glass in the right position, just pressed down and made sure it aligned everywhere. Then turned it over, and put a little weight on the phone. This worked out very well.

Now I have a working phone again, which I dubbed FrankenPhone as it contains part from 3 different HD2's. Sadly, the hardware keys on the front don't work, even though the PCB and flatcable and the buttons are 100% OK. Looks like the main board I got has a broken interface for those keys. Everything else seems to work just fine. So now I'll start a new quest to map the working volume keys to the Home + Back buttons in android, and then figure out if I can somehow emulate the menu button by patching the firmware..
[HD2 General] lvrijn:
Hmm, some people asked me if I could replace their digitizers for HD2.

I thought it's possible (nothing is impossible).

I am going to replace the whole LCM (no problems with seperating LCD and digitizer, no dust or fingerprints between them).

But I saw in the video, when the chassis is still attached to the LCM (With some silicon based glue?) it has to go in the oven at 60 degrees celcius for 5 minutes.

This is so you can seperate the chassis from the LCM.

But why do the sellers on ebay only sell the LCM without the chassis attached?

It would be so much easier if they sell the LCD with the chassis, then it would not go in the oven at all..

I just don't understand because this chassis looks like it's just a cheap part of the screen. And you can't break the flex cable for the front 5 buttons.
[HD2 General] stragulus:
Because it makes no sense selling extra items that you don't really need. If you want, you can buy chassis + LCM individually and glue those two together (because that's real easy, just get double-sided tape at a car parts store and cut out a few pieces).

Separating these two is easy though, the oven makes it a lot easier but it is possible to do it without. Wouldn't recommend it though, there's a good risk that you'll apply too much force and destroy something. I used a paint stripper by the way, works just as well but again, you have to be a little bit more careful.
[HD2 General] OfficeLinebacker:
Where are you located?
[HD2 General] lvrijn:
Haha, hmm like 3800 miles away from you.. (The Netherlands)