yashsingh1/xdaforums huggingface dataset:
[HD2 General] DarkScorpion01:
Hey man, thanks a lot for this info. I finally got around to replacing the digitizer on my phone this weekend. It was definitely a pain in the ass, but your info helped out a lot.

My advice to anyone who's looking to replace the digitizer but not the LCD is to just go with the LCD/Digitizer combo. You don't have to worry about dust getting between the two, cleaning off any finger prints, aligning the glass onto the screen itself, cleaning off the old tape, and cutting the new tape to size. I paid ~$30 for the digitizer alone from Amazon - the extra $40 to buy the two pre-assembled off of eBay is definitely worth it unless you need to replace it immediately, or you absolutely cannot afford the extra cost. I replaced the digitizer alone, and though it's almost perfect, I don't think it was worth the effort.
[HD2 General] alh84001:
At one point during the video, voltage is measured. Does anyone know which pins and what values are expected?
[HD2 General] GnatGoSplat:
Why would you need to measure voltage for any reason?

Maybe he is just measuring for continuity, assuming it's a digitizer that needed soldered, he is probably just making sure his solder job is good.
[HD2 General] alh84001:
I don't know. But I have a HD2 that already has a soldered on replacement digitizer and it is not responding, so I was wondering if I could do something to check it (it also had a problem with keypad flex and now I'm waiting for a new one to arrive, but I doubt that had anything to do with it).
[HD2 General] Perlitschke:
Hi Pumemule,

you can use every 295 ( Version with Soldering ) or 300 ( Version 2 with Click On System ) LCD&Touch-Module. They fit in the Regular HD2 and also inside the US-T-Mobile Versions...

The Connector is the same; Dimensions the Same and electric too. This make it easy for us. You find Instructions here ( it´s still unter Construction, but i hope in a couple of Days complete ):

http://mperlitsch.hintergrundbild.com/htc_hd2.htm

Best Regards,

Michael
[HD2 General] zabusa2007:
Cost

I was wondering how it would cost sending a broken (glass) hd2 to the assistance centre
[HD2 General] Perlitschke:
Sure you have Problems with the Keyflex-Board. Your Kexflex Board is still ok, you only damaged the Connectior-Pins. This is one of the biggest Traps at the HD2, because you have to Remove the Connector very (!!!) Gentle. If you reffer the Official HTC-Video Gulde you damage the Hyper-Sensitive Connector very often ( i bet, this guy inside that HTC Service Video is working Part-Time on the scrap iron place ). You have to Remove the Keypad Connector from the SMD-Socket without Bending. If you do that, you can´t Damage the Keyflex.

If you damaged the Keyflex-Connector only a littte 1;2 or 3 Keys are still workling. Then try to Correct that Bending-Problem und put the Connector 1-3 Degrees diagonally inside the Socket till all 5 Keys working again...

And be very gentle to this Connector ( sometimes the Flower-Trick helps---> talk to the Connector and say "good Connector"; "nice Connector"; "you´re my Best Connector..." ) ;-)

Best Regards,

Michael
[HD2 General] izoandrew:
thanks.excellent instruction
[HD2 General] Perlitschke:
I bring my "Touchscreen"; "LCD" Repair-Page today a big Step forward. Now 80 Step by Step Pictures inkl. Instuctions ( only German, and if i have time will will Translate all that to my Stupid/Poor english ). I´m not Sure that a can write the Rest tonight, but i guess i will finish that DIY-HD2 Page Tomorrow or the the Day after...

Here again the Link:

http://mperlitsch.hintergrundbild.com/htc_hd2.htm

Good Luck and Best Regards to everyone. I hope my instuctions and Pictures will Help a little...

Micha
[HD2 General] GnatGoSplat:
Looks good, but I found steps 5-17 are not needed. I went straight to your step 24 and 20 after that.

Also, where did you get that black adhesive? It looks closer to original than the clear 3M 300LSE I used. To reduce dust in the screen, I think it might be better to apply adhesive to the LCD first, that way you don't have to peel off the protective plastic from the digitizer until right before you stick it on. I also found using a piece of tape to remove dust/fingerprints from the LCD or digitizer is much better than blowing or wiping it. The way you would use the tape to clean the LCD or digitizer is similar to how you'd use a piece of tape to remove pet fur from your clothing.
[HD2 General] snowcolt17:
ok sorry to be a n00b but my brother dropped his tmobile hd2 and cracked the digi on it. then it went out. as i understand there is a htc brand and a htc tmobile brand.

my question is.. is there 2 different kinds. or just a htc which has a different connector then the tmobile one.

i will need one like this right

http://www.ecrater.com/p/9235852/t-mobile-hd2-touch-screen-digitizer
[HD2 General] Perlitschke:
I know from the European HD2 that we can use every Touchscreen/LCD Combo ( 295er and Version 2 300er ). Also T-Mobile Touchscreens. My personal HD2 has that T-Mobile Touch & LCD Combo too and it´s works perfect. And i fixed a couple auf HD2 with this US-Screens for Friends of mine, too. Not Problems at all...

Before you ordered only the Touch, find out what kind of LCD you have inside your T-Mobile HD2. Your Link and 300er Touch fits only to 60H00300 LCDs ( Version 2 Click On ). Is you have inside a 60H00295, you have to Buy the right Touch ( 295 = soldering Version )

Take care,

Micha
[HD2 General] snowcolt17:
on the lcd ribbon i see cb043g-t01x402us

ok. from what i have been searching it isnt the 2 that are together. if it needs soldering i can solder good.

it isnt like this one

here are some pics. i cut the ribbon for digi.
[HD2 General] snowcolt17:
ok. i got the digi today.. but. do i need kapton tape to go back on the connections? and on the when i removed the back thing that shows the imei number and stuff it had the kapton copper stuff on it?.
[HD2 General] GnatGoSplat:
Kapton tape? You taking about that yellow tape? It's not that strong, I think you can sub regular old clear tape. I don't think it's really needed anyway.

At the stage you were at in the above pics, I would have just disconnected the LCD and removed the metal frame. Not sure why you're messing with the part with the IMEI number and stuff.
[HD2 General] snowcolt17:
i know kapton tape is heat resistant. not sure why they had it on there?

i thought i had to take that part off to get to the lcd and dii connectors
[HD2 General] GnatGoSplat:
Nope, LCD connector is what you see right there in your pics that the LCD flex goes to. You could lift the latch with as much clearance as you have right there, but you will need to loosen the lower circuit board to drop the connector below the metal frame to pull the flex out, but that's easy. Make sure when you loosen the lower circuit board to disconnect the keypad flex first!

Digitizer connector is the white one you see sitting right on the LCD flex, but you will need to pull off the LCD frame from the main frame because the digitizer connector on the LCD flex fits through the hole in the LCD frame and the digitizer flex goes on the outside of it.

I think that Kapton tape is just to prevent the flex connector latches from popping open if the phone gets bumped or dropped.
[HD2 General] snowcolt17:
alright thanks.. now just to get some adhesive stips. blah. and assemble everything back together. as for the copper clad kapton or whatever i may have to buy some more of it
[HD2 General] GnatGoSplat:
I would definitely recommend something stronger for adhesive than 3M 300LSE. That's what I bought from eBay for this very purpose. It's strong enough and corect thickness to hold the digitizer to LCD, but not really strong enough to hold the LCD to frame. It keeps popping up overnight on one side about 1.5mm and I keep having to push it down. Very annoying. I'm gonna have to take my phone apart and use something stronger like adhesive silicone. I just hope I don't crack my digitizer taking it apart again.
[HD2 General] snowcolt17:
adhesive silicon. i know the kind they used wasnt like the tape. looks more gluish. any suggestion on what kind to use? just any adhesive silicon
[HD2 General] GnatGoSplat:
I would use double-sided tape to attach digitizer to LCD for sure, because silicone is a goop and would make a mess and you don't want a mess between LCD and digitizer. BUT I think it should be fine to use silicone to attach the assembly to the main frame. I plan to try Permatex Adhesive Silicone. I use it for lots of things because when it cures, it's crazy strong, but you'll need some kind of clamp or rubber bands or something like that to hold it firmly together because the adhesive silicone has little strength before it cures.

Not sure of every place that sells it, but auto parts stores usually have it.
[HD2 General] snowcolt17:
yea i know. it will ooze out on the lcd. my brother is like just use it. just a little here and there. im looking for some thin adhesive tape. i already got the silicone. i will take pics later and show the copper back that come off. maybe its still reusable.. i hope so
[HD2 General] GnatGoSplat:
Nah, you want to use the tape on the LCD-to-digitizer also so the gap between digitizer and LCD is uniform and consistent. You also want to make sure there are no gaps in the tape so that dust doesn't get in between digitizer and LCD - if there is a way for dust to get in, it will.

I did take my HD2 apart again yesterday to replace tape holding the assembly to the frame with silicone. The tape was holding really good on one side (very hard to take apart) but not hardly holding on the side that always lifts up. Weird! Anyway, I pulled it off and used that silicone I mentioned. Then wrapped a bunch of rubberbands real tight around the phone and let it cure 24hrs. Just pulled off the rubberbands a few hours ago and looks good, everything still flush and nothing popping up. Sure hope it stays that way!
[HD2 General] snowcolt17:
it should. i dont think the phone will get hot enough to mess with it.. and silicone does hold good. yea i think i am going to go with this http://www.amazon.com/Adhesive-Digitizer-Incredible-Thunderbolt-Sensation/dp/B005GISZ1M just to make sure. and make sure i didnt miss any place. then use the silicone like you did.

and here is the back of the part i was talking about.. i think i messed it up. but i think i can manage to get it to work
[HD2 General] Perlitschke:
Sure you need that Tape ( you can use also good Sticky Clear Tape ). The Original KAPTON Tape is only High-Temp. Resistance Tape. The Reasion to use that Tape is to fix the Position inside the Connector. If you don´t use Tape maybe you get earlier or later a BLACK Screen...

Best Regards,

Michael

---------- Post added at 08:52 PM ---------- Previous post was at 08:50 PM ----------

My Phone-Company use the same. They use this kind of Heat Resistant Tape Universal. And it´s also Cheap if you brought Million Kilometer of that ;-)

Michael
[HD2 General] GnatGoSplat:
Yeah, that tape should work, though it's a ton, you'll be able to do hundreds of phones with that! I'd probably look for a much smaller, much cheaper quantity on eBay.

Ah, that's the copper you were talking about. You might be able to smooth it out by putting the sticky side down on a piece of wax paper (from a sticker or something) and then running over it with something smooth and hard like the back of a screwdriver handle to massage the crinkles out of it.
[HD2 General] Perlitschke:
BINGO, you got it !
[HD2 General] snowcolt17:
yea thought about doing that. and adding just a thin coat of silicone to it. just to make it stick better.

yea i was thinking of finding a smaller qualinty of the tape.. lol

and i ordered some kapton anyways. need to reflow a few xbox 360s anyways. itll be here tomorrow.
[HD2 General] ajosim83:
so that's mean, if my hd2 is the international version,so i can put t-mobile version on my phone too?

curios...
[HD2 General] 2thesound:
muy interesante y practico.....

Gracias!!!
[HD2 General] fras-xda:
Hi,

I have a htc standart hd2 and just buy

a hd2 t-mobile screen+digitizer.

Is there any way to install it on my device?

Thanks
[HD2 General] GnatGoSplat:
If you're replacing LCD+digitizer as a unit, then you don't have to worry about T-Mobile or not. The LCD+digitizer assembly connector to motherboard is the same.

Only if you buy the digitizer alone does it matter, that's because of how the digitizer connects to the LCD.
[HD2 General] fras-xda:
Thanks gnat,

but I thonk do not include the lcd, is just this

http://www.ebay.es/itm/280752274099?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#ht_1130wt_950
[HD2 General] GnatGoSplat:
That's only the digitizer, so if you have a standard international HD2, you can't use that digitizer. You will need to buy the solder type and solder it to the LCD.
[HD2 General] Helz:
Greetings

So there's one thing i couldnt understand, can i use a solder type display and digitizer on a phone that originaly had a display and digitizer with the strap in conector.

Device HTC HD2 International
[HD2 General] arthasz:
Thanx!! though i hope i will never need it!
[HD2 General] GnatGoSplat:
Yes. Digitizer attaches to display, so it will work as long as display and digitizer's connection matches.
[HD2 General] Moe747:
My T-MO HD2's touch screen is not always working and I know its the problem with the power button and ribbon cable. Anyways I plan on replacing the digitizer in my unit with another digitizer or should I buy a digitizer+lcd combo for it? Is there anything else I should buy to help fix it? Also it seems that someone before has fiddled inside with it or repaired it, I notice these pieces of copper tape and electrical tape put in there.
[HD2 General] Moe747:
Okay after reading throughout the thread I decided to buy a digitizer+Lcd combo as it seems easier and less pain, higher success rate. Here it is http://www.ebay.com/itm/New-Full-LC...ltDomain_0&hash=item2c5d225f29#ht_4087wt_1164

Anyways is that all I need to repair my phone for use? I noticed that there was the tape over the connections, does it have to be a certain type of tape, is it required? Is there anything else I should know?
[HD2 General] neil522:
great guide
[HD2 General] bbbbqq:
Best tip I can give is that there is a small spot, around 1/3 from the top of the screen on the right side, where there is NO adhesive. Use that, slip a small piece of cardboard (cut up a business card) into there and work it around. Should have no difficulty.

As for my hd2, The screen turns on, but doesn't display anything. What did I do wrong ?
[HD2 General] xterminater07:
guys, I bought the HD2 used from someone who dropped the phone and cracked the screen, the touch function and everything work so does that mean I just need to get the outer lcd screen or the digitizer as well? I saw on amazon they sell the lcd screen pretty cheap. Please point me in the right direction.
[HD2 General] GnatGoSplat:
Looks like you just need the glass digitizer if the display on the LCD is fine, but it's definitely easier to replace the entire digitizer+LCD as an assembly.
[HD2 General] xterminater07:
the entire digitizer + lcd is expensive isn't it? If I did that I might as well spent the $140 to buy a used one instead of only $60 to fix this :D The digitizer is only $30 on eBay for oem t-mobile branded.
[HD2 General] GnatGoSplat:
Yes, entire assembly is definitely expensive. I also took the less easy way by replacing digitizer by itself. I got lucky and found it for $18 shipped for a brand new one. If cost matters to you as it did to me, I'd just go the hard way and replace digitizer by itself. The most difficult part is getting every itty bitty piece of dust out and keeping them out during reassembly, but I am really, really picky about dust in the screen. I know some people don't care, I got a used Nexus One once that someone replaced the digitizer on, and it not only had a crapload of dust in the screen, but fingerprints all over inside too!

A tip if you are as picky as me - use a piece of tape to clean LCD and digitizer before assembling. It works great to remove dust particles. Trying to wipe them away with a cloth only makes things worse.
[HD2 General] xterminater07:
Thanks for the tip... that's what I plan to do just right before I install the lcd assembly to the hd2 :) I found a oem branded t-mobile digitizer on ebay for 30 shipped and about 25 on amazon, where did you get yours? Also I will be following the guide on ifixit.com because they seem to be the most professional at it. Do you have a better guide then them?

this is the guide I will be following, does it seems to be right?
[HD2 General] GnatGoSplat:
I also got mine from eBay, but the guy only had the one.

The guide on ifixit and the video by OP has you remove way, Way, WAY more than is necessary just to replace the screen and digitizer. I was able to go from step 7 and jump to step 26, skipping steps 8 thru 25. I did remove the 3 screws on the lower circuit board in step 15, but I simply loosened it for access to the flex connector without removing it, and that also required doing step 19. Most people tend to make this a significantly more difficult project than it needs to be. To do it without removing any unnecessary parts only requires that you know where the flex for the LCD module is so you don't accidentally tear or damage it while pulling the LCD away from the frame. I think I posted pics of how I did it earlier in the thread.

EDIT: Here's a link to the post with the pic. Shows how you can separate LCD and chassis without removing anything.

http://xdaforums.com/showpost.php?p=16718344&postcount=16
[HD2 General] xterminater07:
Hmm.. so do I just follow what you said earlier? I saw the pic you posted, but is that the pic of the lcd plus digitizer once it's off? I'm a total n00b at this but can you put together a step by step guide of how you did yours so I don't have to take more parts out and then later on have extra screws :D :p if you know what I mean :) Also do I get those 3M double sided tape for "iphone" that I see on amazon to tape it together? It doesn't mention anything about that on ifixit
[HD2 General] MarioWaza:
hmm, maybe i'm going to try this. My screen is nog 100% oké
[HD2 General] xterminater07:
Thank you so much for that thorough write up.. I will definitely take my time and follow your directions along with the ifixit and skipping those extra steps that they did. You're right, I don't even know why they removed so many components just to get the lcd off! Will keep you updated on what happened :) Now I got to find a proper digitizer and screen, maybe skipping out on the branded "t-mobile" logo to save a couple bucks :p
[HD2 General] GnatGoSplat:
I'm afraid if you buy the digitizer by itself, you'll have to get a T-Mobile one if you have a T-Mobile HD2 because the digitizer-to-LCD connection is different than the unbranded European digitizer.

It's only if you buy the entire assembly of digitizer+LCD pre-assembled that it doesn't matter.
[HD2 General] xterminater07:
Well I agree that I have to buy the t-mobile digitizer with the solderless connector, which they have on ebay and amazon. They also have the one that is solderless but have the word "T-mobile" on it. I wonder why, and does it matter?
[HD2 General] GnatGoSplat:
Oh, I didn't realize there were solderless ones that don't say "T-Mobile" on them. If it has the same connector, I'm sure it doesn't matter.
[HD2 General] I'm A Dork Fish:
Okay, I am officially scared. LOL I have made it to the part where you detach the old screen. I got all of my tape (RadioShack: Supermount tape, it is like a foam tape) on the new LCD/digitized assembly and the tape appears to be too thick. How thick is the tape from ebay? Is it a foam tape or no? Radioshack is next door, i wonder if they have something else? Do you have to remove all of the old tape? Also, i tried a couple of times to connect the flex cable to the new assembly and wasn't having any luck. Is there a tool that works better than others? Did you reattach the lower circuit board before attaching the new flex connector? I am really starting to sike myself out here. I already have about $80.00 invested into this repair. I am afraid that I am going to screw it up... helpppp

...just noticed that you used Permatex adhesive silicone instead of the tape. Should I skip the tape and use this instead?

Update: I managed to get the new assembly flex cable connected... Can you find out if it works before putting it back together?
[HD2 General] GnatGoSplat:
You're using the complete assembly? My tape is quite thin, I measured a total thickness of 0.36mm using my digital calipers. Minus wax paper backings, that puts it at about 0.16mm. I think that Radio Shack stuff will be too thick. Yes, if you didn't take your phone completely apart and all the electrical stuff is still hooked up, you can just hold the battery to the terminals to test it, but be sure to hook the keypad flex back up so you can press the POWER button. I tested mine before applying final adhesive as well.

Yes, I originally used the 3000 LSE tape to hold the LCD+digitizer assembly onto the phone, but then I noticed over night, a corner of the glass would rise up about 1-2 mm. Maybe heat would have gotten the tape sticking better? I don't know why, it stuck really well in some spots, but not others despite having cleaned both surfaces thoroughly with alcohol. Anyway, I got sick of pushing it down all the time, so I took my phone apart AGAIN and cleaned off all the old adhesive and just used Permatex adhesive silicone in the areas where the old tape was. I reassembled while silicone was still "wet" and used rubber bands to hold the phone tightly together while the silicone cured. 24-hours later, it held perfectly and completely flush and has stayed that way for months. I could have just stuck with the tape and pushed it back down every day, but I don't have patience for such annoyances.
[HD2 General] I'm A Dork Fish:
Yes, I purchased the complete assembly.

okay, next issue...

The buttons don't seem right. It is almost like the glass is misaligned. They don't push down like they should. I did press the spot of the circuit board and the phone came on but I can't get the buttons to turn it on??? There is only one piece to the controls buttons correct?

I am stumped...
[HD2 General] GnatGoSplat:
Yes, there's just one piece to the controls buttons. Did you put the buttons into the hole in the glass? The button assembly kind of goes up and over the LCD part of the module so you have to put that on the glass first. I used a piece of tape on top to hold it onto the glass. Everything should line right up that way.
[HD2 General] I'm A Dork Fish:
Okay, phew. I thought i might have lost a piece. I think I might have it right now. I went next door and grabed some of that adhesive from the Auto parts store. LOL They had black or clear. I went with clear. I hope it didn't matter.

I put the adhesive on and put a couple of rubberbands around it. I was able to move it into place while the rubberbands held it. Once it sets then I will put it in the chassis.

Is this okay?

If it doesn't work then "Oh well", I will just have to choke it up as a loss. :( but I am keeping my fingers crossed. I have two of them including the broken one. I thought that I would fix the broken one and use it and then sell my other one that is almost new.
[HD2 General] GnatGoSplat:
I actually put it all back together, because once that silicone cures, it's NOT going to be easy to take apart so you want everything aligned 100%. If it cures even a little bit off, it could be really difficult to correct.

That silicone cures to a REALLY strong bond.
[HD2 General] I'm A Dork Fish:
Okay, I put it together. It came on but I cannot adjust the volume controls. :(

UGH
[HD2 General] GnatGoSplat:
If they're just not clicking, you might just have the plastic switch slightly off. I did have a little trouble getting that thing aligned perfectly as well.
[HD2 General] I'm A Dork Fish:
It looks as though the speaker is not working. :( I think I am about to give up. $80.00 down the drain...

---------- Post added at 04:42 PM ---------- Previous post was at 04:30 PM ----------

$70.00 someone can have the entire phone with the brand new (OEM) LCD/digitizer assembly. :(