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.

help with power button parts

I was having trouble with my touchscreen - it kept registering presses in the middle when I wasn't even touching it. I've been out of warranty for 6 or so months so I decided to repair it myself. there was probably dust or hair stuck under the digitizer.
I took apart my phone, wiggled stuff around, and put it back together. that did the trick and my touchscreen is no longer an issue. however, I may have lost some parts for my power button. I don't have any detailed reference material / images to go by, so I don't know what's wrong. I _do_ have the long black piece that is the cover and the silver metal housing that goes over the microswitch. is there a third piece?
tl;dr - can someone take photos of their power switch for me? not the button on the top but the internals?

No there's not you may just need to open back up and make sure the parts are facing the right way.
I dropped my phone in water and put it in rice then rice got into it so I had to open to get it out
Sent from my PC36100 using XDA

if there's no third part, can someone post a photo to show how the parts align? I'm not sure how it's supposed to go together.

[Q] Back light only comes on after replacing LCD and Digitizer

Hello, and I appreciate everyone who has taken a look at this post.
I recently replaced my LCD and Digitizer. A couple of months ago I dropped my phone into the bilge(bottom of a boat) filled with oil. When this happened the digitizer had a crack in the corner and the LCD got flooded with oil, not to mention the phone. I took of the back cover and let the oil drain out. I didn't open up the housing or anything. I soaked up as much oil as possible. Still though, half of the screen was a few shades darker and difficult to read text messages and playing games were out of the question. Everything else was fine, the OS didn't slow down and I saw no signs of rust anywhere.
During the holidays, I got the digitizer and LCD. So I followed the video on youtube from this website on how to take apart the Xperia Play. I replaced the LCD and I used the same adhesive strip over again with the digitizer. Now when I turn on my phone, it vibrates, but the back light comes on periodically for about 2-3 seconds and then turns of. And then a few minutes later the back light will turn on and turn off again. i get no picture from the LCD. I have turned it off and on a few times. Same thing. I have also tried turning it on while holding the power button and random combinations of the other buttons. I plugged it into my pc and when the back light goes off, my computer detects a device but shortly after losses it.
I have read through other threads to see for similar stories. The only thing i can think of is maybe, I damaged the strip of the LCD or i fried my mother board. I just would like to know if it is another problem or if anyone has some good solutions for this.
If anyone can help me, it would be greatly appreciated. I love this phone and this n00b needs some help. Lol.

If it was just oil you dropped it in then the electronics will probably be fine as it is non conductive so the problem probably lies somewhere else. I do many phone repairs, mainly to iPhones, HTC's etc, but I have never done an XP so not too sure on specifics but what you describe would probably be ribbon cable related, either not a perfect connection or slightly damaged. It only takes a slight nick on the ribbon to render it useless. I replaced a digitizer on an HTC sensation once and the phone did exactly the same as what you describe. I took the new one off and put the old cracked one back on and the phone was normal again.
Dunno how much that helps but hope it's of some use
Sent from my R800i using xda app-developers app

[Resolved] Digitizer Dead-zone...?

So I got this nice (albeit beat-up, but 100% functional) G2 from a friend, and for about 3 weeks it had no problems. I rooted it, put CyanogenMod 7.2 on it, worked fine.
About 3 days ago, it started behaving really weird while I was using it. Interfaces not responding, at times opening things when I didn't have my finger on the screen, usual possessed phone behavior) I did some investigating with the Developer Tools' Pointer Location display, and there's this massive dead-zone on my digitizer! The dead-zone (while holding the phone in landscape) goes from X=255.1 to X=401.1, and covers all the Y-values in that range. if I move my finger slowly enough through the deadzone from one fo the sides of it, it will register as being directly in the center of it. Other times it will show a very light touch on the right side of the zone, activating interface elements and the like.
What happened? Do I have to replace the digitizer? I don't have a warranty on it, seeing as I got it second-hand. Possible fixes, if it's not a serious hardware issue?
I don't have money to spare, so buying things to fix it might take a lot of saving.
EDIT: Got it in the mail finally, replaced it in 45 minutes. I had to use the dorm's heated-air hand-dryer to get it off, and I kinda messed up the glue a bit, but it's working just fine.

If you have to replace the digitizer, I would not worry. I just got done replacing the lcd on my G2, and it works. I bought the lcd (in your case it would be a digitizer) off ebay and my purchased also included the screw drivers and plastic tip thingy to open the phone. For the digitizer you might need to also get double sided tape.
There is a youtube video showing how to take a part and put back the phone. I think the video was like 30min, but when I did it, the time was 1.5hrs totally.
good luck if you go that route.

Previous post is spot on, for most people I would assume this won't be a hard task, I have opened and repaired dozens of g2s (and many other phones) and although sliders tend to be the most complicated its really straight forward
Find a YouTube video or other instructions online and look at it ahead of time to see if its something you feel comfortable with. Then if so, order the digitizer (90% this is the cause 10% the main flex) for around 15-20$ and all you need is a #0 Philips and a t5 torx and a hairdryer/heat gun
You won't need tape as there is more than enough sticky left after prying of the digitizer. Expect about that hour in half if your new to this, but can be done in less than 20 if you do it a lot Here is a link to info on your phone including repair guides
http://forum.xda-developers.com/showthread.php?p=43195539
Best of luck!
Sent from my Nexus 4 using Tapatalk 2

Aw. Was hoping this wouldn't be the solution.
That sucks. Just went and ordered one, it came with screwdrivers and the prying tool, but I don't have any double-sided tape. Let's hope it's still sticky. Well, it supposedly gets here on the 9th, so I'll read up on replacing from these links. Thanks for the support. Hope I don't break the thing. :/

Completely unresponsive touchscreen

Hello all,
I will preface this by saying that this issue is likely a result of water damage. However, my experience has been a bit odd. So someone bumped my chair, spilled water partially on my phone. I immediately removed the case and battery and let the phone sit for a good half hour before examining it. Looked completely dry so I inserted the battery and booted up. Went perfectly fine until the home screen appeared, at which point the screen did not register any touches and I could not interact with the phone. Removed the battery again and reexamined the phone: upon shaking it I found that some water shook free and was immediately worried. Let it dry for another half hour or so, rebooted it, and it worked perfectly for about half an hour, listened to music and such.
While texting, I noticed that there was some worrisome screen flickering going on so I removed the battery again and let it dry for another hour or two. Now I've reattempted to reboot it, but the screen absolutely refuses to respond to touch input. The phone appears to work perfectly fine and there is no damage to the screen I can see, nor does the flickering appear anymore. But touch input is fully unresponsive.
My current plan is to by a replacement digitizer, screen, and frame combo and replace that but I wanted to check in with the forum first to see if anyone has any ideas as to what the problem is and how I might go about verifying that the digitizer is indeed broken.

ericralph said:
Hello all,
I will preface this by saying that this issue is likely a result of water damage. However, my experience has been a bit odd. So someone bumped my chair, spilled water partially on my phone. I immediately removed the case and battery and let the phone sit for a good half hour before examining it. Looked completely dry so I inserted the battery and booted up. Went perfectly fine until the home screen appeared, at which point the screen did not register any touches and I could not interact with the phone. Removed the battery again and reexamined the phone: upon shaking it I found that some water shook free and was immediately worried. Let it dry for another half hour or so, rebooted it, and it worked perfectly for about half an hour, listened to music and such.
While texting, I noticed that there was some worrisome screen flickering going on so I removed the battery again and let it dry for another hour or two. Now I've reattempted to reboot it, but the screen absolutely refuses to respond to touch input. The phone appears to work perfectly fine and there is no damage to the screen I can see, nor does the flickering appear anymore. But touch input is fully unresponsive.
My current plan is to by a replacement digitizer, screen, and frame combo and replace that but I wanted to check in with the forum first to see if anyone has any ideas as to what the problem is and how I might go about verifying that the digitizer is indeed broken.
Click to expand...
Click to collapse
I've personally not known digitizers to go bad from a little water. Usually it's an internal area where the water is getting too. If you're no longer under warranty I'd take the phone apart from the back by taking out the screws and examining it that way. It may be too late for it if it's caused flickering in the screen. It could have weakened it. Am I saying don't buy a digitizer? No that's up to you. Unfortunately since you used it within a few hours of it getting wet I'm not sure. The best thing to do is to at least let it have a chance to dry overnight since the water gets in places that not much air gets to it takes longer to dry. Some have had luck putting the phone in a baggy of dry rice to extract the moisture. I've never had much luck with that method. I've always taken the phone apart as much as I can and then putting rubbing alcohol on the board to seep in where the water may have gotten and then letting it air dry. Make sure not to get it on the screen though. And with any advice like this I take no responsibility if the phone messes up, becomes unusable or turns into a Ferrari

phonepie said:
I've personally not known digitizers to go bad from a little water. Usually it's an internal area where the water is getting too. If you're no longer under warranty I'd take the phone apart from the back by taking out the screws and examining it that way. It may be too late for it if it's caused flickering in the screen. It could have weakened it. Am I saying don't buy a digitizer? No that's up to you. Unfortunately since you used it within a few hours of it getting wet I'm not sure. The best thing to do is to at least let it have a chance to dry overnight since the water gets in places that not much air gets to it takes longer to dry. Some have had luck putting the phone in a baggy of dry rice to extract the moisture. I've never had much luck with that method. I've always taken the phone apart as much as I can and then putting rubbing alcohol on the board to seep in where the water may have gotten and then letting it air dry. Make sure not to get it on the screen though. And with any advice like this I take no responsibility if the phone messes up, becomes unusable or turns into a Ferrari
Click to expand...
Click to collapse
Thanks a ton for the reply. I have essentially come to the same conclusion. It is quite an absurd issue that EVERYTHING appears to function, but the screen is no longer responsive to touch input. I'm going to try and replace the display body (only $50, can return it within 30 days if no luck). My Verizon contract ends in mid July so I just need a phone that can limp to that point or whenever the next Nexus is released.

Well, I managed to replace the screen/digitizer/body (essentially did a transplant of everything) and now my phone is back in reasonable working order. Had some odd issues with screen flickering again so that is worrisome, but the touch screen now works fine. Only issue is that the screen is absolute trash and is washed out, with major light leakage around the bezels (may have gotten some ****ty knockoff from China ).