Develop Bugs

Replacing the digitizer on the TP2

Hi,
Just purchased a TP2 with a cracked digitizer. I also have the replacement. I've done a bit of research, and it looks like a ton of steps. I'm pretty confident I can do it, so all I'm really looking for is some tips. Any surprises I might see that may not have been covered in this guide? This is what I have so far:
http://translate.google.co.uk/trans...ka/htc_touch_pro2/&sl=ru&tl=en&hl=en&ie=UTF-8

how did you conclude that your digitizer is cracked?

The LCD is fine. It's the top layer of plastic that is cracked. I haven't received the phone yet, but I inspected it, and that's what I concluded. The person who sold it to me is including a replacement part, but I know I'm looking at a lengthy process to dismantle the device.

Do you have to take apart the entire phone just to change the digitizer? I thought you could just hook something underneath the corner and pry it out.
It seems like such a drag if you have to take the whole phone apart to change an exterior item.

Man you're in for a world of hurt and frustration... Easier to just purchase and replace the LCD and digitizer together...
But hey, good luck.....

have you managed to replace the digitizer only? if its such a mission why are so many people selling them on ebay? a scam maby lol?

i too am interested in your results, just now bought a cracked LCD htc touch pro 2 for $100, touching the screen works, except that the phone is stuck in head-set mode and can't seem to get out of it. also, i want to replace the lcd and use the phone myself. can you pls post your success/educational steps which you followed. also, where did you buy the replacement LCD? how much ? pls help.

ultramag69 said:
Man you're in for a world of hurt and frustration... Easier to just purchase and replace the LCD and digitizer together...
But hey, good luck.....
Click to expand...
Click to collapse
Totally agree here. From what I have read you dont want to mess around with trying to pry the current digitizer off and then reapply a new one on. It's a HUGE pain in the ass. Just purchase a replacement LCD screen/digitizer combo and i's apparently super easy to swap out.

I've taken apart tons of phones, I'm currently waiting on a digitizer to replace for my TP2. If you search this forum you will find instructions how to do it.
While waiting I've been reviewing the instructions.
As always the hardest part is putting it back together.
The only thing I can recommend to you is to don't worry about replacing it. Take pictures with a digital camera as you go so you can know how to put it back together.
Hopefully I will get mine by this weekend. It is for a T-Mobile TP2 and the only shop to have one available was in Hong Kong.
Good luck.

Redman0570 said:
I've taken apart tons of phones, I'm currently waiting on a digitizer to replace for my TP2. If you search this forum you will find instructions how to do it.
While waiting I've been reviewing the instructions.
As always the hardest part is putting it back together.
The only thing I can recommend to you is to don't worry about replacing it. Take pictures with a digital camera as you go so you can know how to put it back together.
Hopefully I will get mine by this weekend. It is for a T-Mobile TP2 and the only shop to have one available was in Hong Kong.
Good luck.
Click to expand...
Click to collapse
Hi, can u post how you go with this e.g. is it easy enough to seperate the lcd and touchscreen. Maby a few pics as well if you can.
Cheers

It can be done but it requires ALOT of patience. Take it slowly and try not to leaver against the LCD in anyway. If you do break the screen when replacing it a replacement isn't expensive.

I replaced the digitizer twice. Taking the phone apart and assembling it back is difficult only when you do it for the first time. Once you know what's going on it just takes some time and precision. The REALLY tough part when replacing JUST the digitizer is putting the lcd and digitizer together without any dust or fingerprints in between. I ended up with dusting and vacuuming the room, putting some super-clean brand new plastic bags around the workplace and putting the cold shower on. Then using super-clean glass polishing microfibre cloth and anti-static glass cleaning liquid under really good lamp I managed to get both parts 100% clean and put them back together. Don't forget latex gloves (the ones that leave no marks) - fingerprints are hundred times worse than dust to get rid of. I have no idea how long did it really take but when I finished my back hurt like hell and water was dripping from the ceiling
Separating lcd and digitizer is not too hard. It was easiest when it was still attached to the bezel. I just pried it out applying easy, firm pressure and taking my time. Try not to damage the sticky layer on the edges or get it excessively dirty - it'll make your life easier later.
I hope it goes easier for you. Gud luck!
EDIT: Make sure that lcd is positioned 100% correctly (there is 1 or 2mm space to move it around). It is a very unpleasant surprise to put the phone back together just to find out that some top or bottom pixel lines are permanently invisible (The Voice of True Experience speaks here:/). And generally - keep the place around you tidy - maybe some containers for screws, parts, tools and that sort of stuff. I am not naturally anal enough to start from this point but found out in the process that this sort of job gets extremely frustrating and exhausting when you get confused, start losing parts etc.

It is major hurt! The TP2 is really not user serviceable! Anyway after reading all instructions I still screwed it up. I should have sent it in to HTC. I would not recommend changing the digitizer on your own.
Everything went well until it came to removing the LCD & replacing the digitizer. I cut the speaker cable, and the LCD just came apart. Luckily I have another LCD, looking for a speaker cable now.

has anyone found any places that sell the lcd and digitizer together for the T-Mobile TP2?

Thanks to these instructions I was able to replace the broken digitizer (glass) on my TP2. Unfortunately the Russian instructions stop short of replacing the glass.
Tools required: T5 torx mini screwdriver, letter opener, mini philips, a mini straight screwdriver and I found a very mini (1mm ) straight screwdriver handy for getthing the keyboard and screen back loose. The letter openner and two straight screwdrivers are only for prying
Here is what I did from the last spot on the Russian instructions: (yes you have to do every step)
Note: Be very careful removing the ribbon taped to the back of the LCD. You have to pry the speaker out ot the case up at the top; don't attempt to remove it by pulling on the ribbon. Once the speaker is loose (it's attached to the riboon, you are ok to remove it.
1. Take a small straight screwdriver and pry all around the LCD (metal back with handwriting on it in the last photo.) There are plastic tabs all around it centering it. You can pry gently against them. The LCD is only adhered with a small gasket around the edge of the glass. It is not glued to the screen as was posted by someone else. It comes out fairly easily.
2. Remove the black tape holding down the ribbon connected to the digitizer. I wasn't able to save the tape but not a big deal. Below the tape is one of three screws holding the buttons on. Remove those three screws.
3. Now you should be able to remove the digitizer. Go slow starting at the bottom. It is glued all around at heavily glued at the top. I had the pry the top away with small flat screwdriver and a letter opener. Go slowly and eventually it will release. At the top of the glass is the speaker for your ear. It will likely come off with the glass. Remove it and return it to the now empty case centering it in top.
4. Using gloves to prevent prints remove the protective film form your new digitizer. There is a lot of static generated when you do this so keep it away from everything for a minute while it neutralizes. Then place the digitizer in from the top, feed the ribbon through the slot and press the plastic all the way around.
5. Replace the buttons and the screws that retain them.
6. Replace the LCD; you can't screw it up the plastic tabs center the LCD. Just make sure the ribbon is at the bottom.
7. Reverse the instructions in the Russian link at the beginning of the post.
All told it took one hour the first time. I got it all together and then screen didn't light it. I had trouble reconnecting the screen ribbon during assembly so I figured the problem was there. I took the phone apart (to the end of the Russian instructions) and reinserted the screen ribbon into the connecter and then reassembled the phone. It took 10 min to disassemble and reassemble the phone the second time although I didn't have to take apart the screen.
So that's it. It cost me $22.00 for a new digitizer and $10.00 shipping, which is a lot better than a new phone if you don't have insurance and the phone looks like new. If you look very hard you can make out one tiny speck of dust under the glass but it's barely visible; much better than looking at the large V shaped crack I had before.

Hello!
I ordered (and received) a screen AND a digitizer. But there's a thin scotch tape that make the screen+digitizer (in one piece) get stick to the phone. OK, I teared it off.
But, how can I replace this scotch tape??? Much less of 1 mm thick, it seems to be made of foam...
Anyone can help me???????????
Please....

Coucou !
Is there anybody out there?
(Pink Floyd, The Wall, 1979 )

I was sent a Digitizer from Ebay (without LCD). Just for everyone elses benefit, there is no way you can remove the digitizer from the LCD Screen. It's glued down. Maybe it wasn't the case with the older ones, but mine can not be separated, no way!
Taking the phone apart is not too hard, the video instructions are pretty good, but seriously, forget trying to replace the digitizer only.
Here is the video:
http://www.youtube.com/watch?v=MrTRPTmoxpw&feature=player_embedded
Cheers, Mal.

If it has the same construction as the HD2, you can put the LCD + digitizer in the oven for 5 minutes at 50 degrees celcius. This was shown in instructions by HTC. Then you can seperate them.

Maybe, but my LCD was glued across the whole screen not just the edges. I'd suggest only buying the Digitizer/LCD combo if you want to do this yourself. If you buy both (as a single piece) the job would be pretty easy.

*** Need help with cracked screen***

***Need help*** with broken/ cracked screen on my vibrant. Anyone here know how to replace and where to buy a screen. Touchscreen still works fine, but I have 2 vertical cracks down the phone and 2 across horizontally. Please help.
Vibrant ROOTED and on TOXIC CRACK

try repairs universe
also there is a youtube video on how to do it

I also cracked mine some time ago. The kits sold on ebay is fine. It includes amoled+gorilla glass, because amoled is so thin that it is impossible to sell it independently. There are several videos on youtube. It is not a hard replacement, I'm sure you can do it yourself. Just disassemble it and after removing mainboard, you remove data bus of the screen, then connect the new screen's data bus. Mine works perfect

I replaced my broken screen but it is not easy. The youtube videos make it look easier than it is. Besides a 2 mm phillips and a pry tool, you will need tweezers, strong reading glasses, something like rubber cement because the screen is really just glued in there, good lighting, and a lot of patience. I have worked on laptops and this is harder.
Once you figure out that the front bezel isn't designed to hold the screen in, it becomes a bit less frustrating but it took me about three hours and lots of scraping of little pieces of broken screen glass out of the front bezel frame. It's back together but I must have gotten the microphone in backwards because it doesn't work, or maybe a wire pulled off the mic. The supplemental menu button in the lower left hand corner does not work either. .

Do yourself a favor and buy a new phone, the AMOLED+Gorilla glass is like 75% of the total cost. Gorilla glass is cheap about $25 but it is extremly hard to replace. at least it is very difficult to remove without inflicting any damage to the phone or the AMOLED. If you go for it. you can use heat to soften the adhesive but be careful that AMOLED is extremly fragile on its own and the touch screen can get easily burned.

After looking on Global Direct, it seems the eBay screen replacement kits don't include everything you need. The phone originally uses die cut adhesive stickers instead of glue to keep the screen in. Screens can be had for $100-$120, less than the phone, but the lower button - mic assembly flex-pcb seems prone to being screwed up 'cause my lower left button and mic won't work now. My screen was pretty well crumbled especially around the lower buttons and perhaps it was just unavoidable that I damaged the lower button mic pcb trying to scrape the glass off.. A new pcb costs around $40 and that is getting up to the price of the phone. Still, being able to successfully disassemble the phone and know how it works could be useful. Some people might be clever enough to upgrade stock parts like putting in a better mic, arctic-silver-epoxying a thin sheet heatsink to the cpu to aid in ocing, etc. The new screen did not break and looks pristine, though, it's just that I f**ked up something else putting it in.

[Q] S3 screen/led replacement issue

I recently bought a galaxy s3 off ebay that just needed a glass screen repair. Having done several of these with other models I thought no biggie ill ju st change out the digitizer and have a heck of a deal lol until I started looking into how the phone was made and the screens being fused together like they are. I followed a youtube video and heated the screen with a hairdryer and proceeded to try and carefully tried to remove the outer glass without harming the digitizer or lcd screens fused behind it. Unfortunately when I removed the glass screen the digitizer came with it. I thought id ripped the digitizer's flex cable til I read this phones digitizer doesnt connect that way. It didnt crack the lcd screen in any way tho, so Im pretty sure I can just clean the lcd rly well and make sure all the adhesive and glass is cleaned off and use new 3m adhesive to install a new digitizer then the glass screen over it.
The only thing im questionable about is a thin brown ribbon/wire that was pulled out of its original place iand tore a little while doimg this removal. Some of the adhesive from the factory apparently stuck to it while I was heating the glass and attatched itself to the digitizer somewhat or enough to work its way out and initially tear as I was pulling the glass off. Its not the buttons or the small cable that attatches them but it is right beside them. Can anyone with some experience working on these galaxy 3s please tell me what this hooks up, controls, or what other replacement part I would have to buy that would have this ribbon included in it? Or with this ribbon being the way it is, am I going to have to buy the lcd,digitizer, &glass screen replacement that comes preassembled? I know its not the lcd flex cable amd doesnt go to the digitizer so im at a loss.
Im attatching pics so u will know what im referring to. Thanks for any help its greatly appreciated.

Pics after screen removal.

That's why I paid more and got the LCD+Digitizer. Cost more but made it a million times faster.
Sent from my Freeza MD4 Stock Rooted Galaxy S3

Yeah i understand i was just tryin to save a few. I can still do that and not lose but 10 bucks so notjhing hurt if i cant find a solution to this or just make double certain that ribbon being the way it is in the pic isnt going to hurt anything.

rbroyles528 said:
I recently bought a galaxy s3 off ebay that just needed a glass screen repair. Having done several of these with other models I thought no biggie ill ju st change out the digitizer and have a heck of a deal lol until I started looking into how the phone was made and the screens being fused together like they are. I followed a youtube video and heated the screen with a hairdryer and proceeded to try and carefully tried to remove the outer glass without harming the digitizer or lcd screens fused behind it. Unfortunately when I removed the glass screen the digitizer came with it. I thought id ripped the digitizer's flex cable til I read this phones digitizer doesnt connect that way. It didnt crack the lcd screen in any way tho, so Im pretty sure I can just clean the lcd rly well and make sure all the adhesive and glass is cleaned off and use new 3m adhesive to install a new digitizer then the glass screen over it.
The only thing im questionable about is a thin brown ribbon/wire that was pulled out of its original place iand tore a little while doimg this removal. Some of the adhesive from the factory apparently stuck to it while I was heating the glass and attatched itself to the digitizer somewhat or enough to work its way out and initially tear as I was pulling the glass off. Its not the buttons or the small cable that attatches them but it is right beside them. Can anyone with some experience working on these galaxy 3s please tell me what this hooks up, controls, or what other replacement part I would have to buy that would have this ribbon included in it? Or with this ribbon being the way it is, am I going to have to buy the lcd,digitizer, &glass screen replacement that comes preassembled? I know its not the lcd flex cable amd doesnt go to the digitizer so im at a loss.
Im attatching pics so u will know what im referring to. Thanks for any help its greatly appreciated.
Click to expand...
Click to collapse
I'd go check out this thread and ask some of these guys. A lot of them seem to have attempted repairs already, and many of them have had to troubleshoot different issues. http://forum.xda-developers.com/showthread.php?t=1890708&page=78

[Q] Shattered glass

So, I shattered the glass on my Galaxy S3 today. It's pretty messed up (see the attached picture), but the touch works, even in the damaged areas. So it seems it's only the glass that needs to be replaced, with something like this:
http://www.ebay.co.uk/itm/Blue-Fron...K_Replacement_Parts_Tools&hash=item417515ee67
Correct?

Yep, goodluck. Replaced the same on my Galaxy Note 2. all good now.

Yeah.... if i were you and have the funds, I would replace the complete assembly ($100-$150 on ebay) and be happy.
I shattered the screen on mine and replaced the digitizer alone and now the screen has freezing/unresponsive issues. I should of known better and replaced the complete assembly, I got what i payed for, literally less than that actually. Now i have a semi-new gs3 collecting dust until i save up for a complete lcd.

1slow4G said:
Yeah.... if i were you and have the funds, I would replace the complete assembly ($100-$150 on ebay) and be happy.
I shattered the screen on mine and replaced the digitizer alone and now the screen has freezing/unresponsive issues. I should of known better and replaced the complete assembly, I got what i payed for, literally less than that actually. Now i have a semi-new gs3 collecting dust until i save up for a complete lcd.
Click to expand...
Click to collapse
The screen seems to work fine, touch/responsiveness is working fine in the areas. I have no intention of spending the £100-120 on a complete new screen (again...). I'd rather save that for a Nexus 5.
I'll post again when I receive the part and it's been replaced.

MadsBen said:
The screen seems to work fine, touch/responsiveness is working fine in the areas. I have no intention of spending the £100-120 on a complete new screen (again...). I'd rather save that for a Nexus 5.
I'll post again when I receive the part and it's been replaced.
Click to expand...
Click to collapse
Mine was working fine with cracked digitizer as well. The problems started with new digitizer. Seems that when typing hard enough the digitizer touches LCD and causes to freeze up. Anyways, Good luck.
Sent from my neXus⁴ using Tapatalk 2

Actually the glass on an s3 is just that, glass. The digitizer is fused together with the LCD. However glass is glued to the LCD which can make it very difficult to replace. If you've never taken on the repair of a screen before then I would say you'll be more likely to break the LCD than not in your replacement of the glass. But again it is possible if you are very slow and very careful. As someone else mentioned though it's much easier to replace the whole assembly.

It didn't went well. I wasn't too carefull. In the bottom, the glass was too shattered, so when I tried to lift it, a piece with glue got stock and lifted the digitizer. So now that don't work. I'm not gonna spend £100-120 on a new digitizer, I'm gonna settle for my good old Nokia 6300i (and Nexus 7...) and wait for the Nexus 5.

I would wait for the n5.. gs3 is a dying trend already.

Its hard like everyone said , if your really gunna do it watch videos online and be prepared. If you know anyone that has done it successfully ask for help or tips
ouch didnt see u tried it already

the same happened to me on my wife's white sgs3 trying to be the savior of the day turned out to be an expensive digitizer replacement of $200 instead of the $8 glass replacement. I rushed the glass removal and cracked the lcd screen. I could have ordered one on ebay for $100 but wife needs the phone the next day so i decided to get it repaired locally.

Just replace the glass. A lot of care for changing it, but it is not so hard to do. I did it 2 weeks ago, and all is all right.

My 2 cents
bidibull14 said:
Just replace the glass. A lot of care for changing it, but it is not so hard to do. I did it 2 weeks ago, and all is all right.
Click to expand...
Click to collapse
Wanted to warn that changing the glass is not for everyone. It takes patience and zen. If you rush it, you will likely break LCD and spend even more $$$ that you would have otherwise. Also following notes:
1. Watch at least a couple of youtube videos before starting.
2. Heavy duty heat blower works much better than a hair dryer. Of course, don't go crazy, as it's possible to melt the phone with it
3. S III has a wire at the bottom (the one which goes to the buttons). If you damage it, you will need to replace whole LCD, there is [almost] no chance you will be able to fix this wire. So, always start removing glass starting with the top of the phone
4. Heavily cracked glass is hard to remove, as it crumbles. To make it easier, a) put a scotch tape on top of glass, so that the small pieces stick to it, and b) use a lot of heat
5. Everybody advises to use plastic tools, personally I used swiss army knife with high level of success, and never had a problem scratching LCD. Your mileage may vary, but using metal blade certainly makes life much easier, especially in heavily cracked glass situation.
6. If you do use blade, it often is enough to get blade just a little bit under a glass, and then simply apply heat. Big chunks will unglue all by themselves.
7. Remember, that failure is always an option. Don't use it on the phone, if you know that you desperately need it working right this day, if you don't have a plan B.

1slow4G said:
Mine was working fine with cracked digitizer as well. The problems started with new digitizer. Seems that when typing hard enough the digitizer touches LCD and causes to freeze up. Anyways, Good luck.
Sent from my neXus⁴ using Tapatalk 2
Click to expand...
Click to collapse
same freezing issue on mine... apparently the hardness of Gorilla2 is much greater than the knockoff glass replacements. The replacement glass on ebay and kijiji may not be authentic and that is why it bends slightly when pressed harder (in fact mine cracked completely when I applied too much pressure)

i replaced my glass too (about month ago), and discovered that , the "freezing issue" come's when you press too hard.. that the glass touches lcd.
after quick google-ing , i've found that they suggest to apply uv glue (octa glue) , to fix that.
have somebody tried that ? is it worth that much effort to mess with liquid glue ?

hani93 said:
i replaced my glass too (about month ago), and discovered that , the "freezing issue" come's when you press too hard.. that the glass touches lcd.
after quick google-ing , i've found that they suggest to apply uv glue (octa glue) , to fix that.
have somebody tried that ? is it worth that much effort to mess with liquid glue ?
Click to expand...
Click to collapse
I've heard about that glue too. I'm considering switching mine, because when I repaired I reused the glue of the original glass, and know I had dust between the glass and the lcd -.-
My concern is about the uv light, don't know if we could put in the sun to substitute it.

I was researching how to replace the glass on an iPhone not too long ago and watched a video where the guy used the UV bonding agent. Long story short he said you can use sunlight to cure it but it takes substantially longer than using a UV lamp. I don't know exact time for sunlight but apparently it would work.
Also it appeared to be a long delicate process of removing the current glue from the digitizer and LCD without damaging it. But I'm sure anyone who has already replaced the glass knows how tedious the process is.

m1batt1 said:
I was researching how to replace the glass on an iPhone not too long ago and watched a video where the guy used the UV bonding agent. Long story short he said you can use sunlight to cure it but it takes substantially longer than using a UV lamp. I don't know exact time for sunlight but apparently it would work.
Also it appeared to be a long delicate process of removing the current glue from the digitizer and LCD without damaging it. But I'm sure anyone who has already replaced the glass knows how tedious the process is.
Click to expand...
Click to collapse
it's not that hard to remove factory gle there..
for example, i removed mine, by rolling the glue with fingers.
just make sure, that you don't apply too much pressure to lcd.
and after that, clean up lcd form dust/fingerprints, and you are good to go.
and for removing glass, i used usual/ stronger kitchen knife (attached picture).

i replaced my glass 3 months ago.
i use normal hair dryer to remove glass and glass comes out almost as whole except for small broken pieces.
i think my scratch guard help in that.
i didnt use any additional glue or uv light.
nonresponsive screen is issue but only when you press too hard and press of power button resolve this issue.
but whole process of replacing galss took 2hrs

Should I replace touch screen digitizer alone (without LCD)?

I recently shattered the front glass on my Z1C. The display still works, but I get so many random ghost touches that it is unusable. Just wondering if anyone here has replaced the screen digitizer by itself rather than buying the digitizer + LCD screen together. Obviously it would be more difficult, however many posts about replacing both have mentioned the lower quality of the LCD image. Since my LCD still works, it would seem like a better option to use the stock one rather than a cheap knock-off. Not to mention it would be a little bit cheaper (I saw a kit which included glue, UV torch, tools, cleaner, and the digitizer for around $18 US). But on the other hand, with the added complexity comes additional risk that I will screw it up and end up worse off than just living with a duller display.
I’m still on the fence about which way to go here. Quality is subjective, so maybe I’m worrying over nothing and the new LCD would be good enough for me. I’d really appreciate your opinions.
Thanks!

Replace all.
I would suggest you to replace the LCD and digitizer completely. I broke mine in December last year. A small glass crack along the power button side made the top half of the digitizer stopped working. The LCD was fine though. I had to connect a wireless mouse to make a backup, copy some stuffs and use my old phone, while the replacement part came. Bought mine from Witrigs.com for $42 including front housing adhesive and shipping. Repairing was easy. Just heat the front part, lift it carefully. Swap the old part for the new one.
But like you I wanted to separate the glass digitizer from the LCD first. After several attempts removing the glue and the glass, the LCD had burnt spots. Maybe I applied a little too much heat in trying to remove the glass. And the broken glass left some permanent scratch marks on the LCD even after cleaning.
In all, trying to separate the LCD and glass has become very hard since last year. I've been repairing phones and tablets for years, mainly broken LCD or glass or both. From my experience, its better to change the whole part now.
Wish you good luck for the repair. Lets hope your phone lives again!!

same here. its very hard without professional stuff to change the display glass without damaging the touch under it. best way is to buy a new "complete" display module (glass, digitizer, touch) so that u only have to press the felx ribbon to ur phone. then using the glue stripes to fix it (using a hair dryer makes it easier to press it in).
Before the installation test the functionality

Hi there!
Can someone trustfully confirm, that witrigs.com is a good source for parts?