[Q] Replaced digitizer, now NOTHING. Assistance requested - myTouch 4G Q&A, Help & Troubleshooting

little history here... buddy cracked his MT4G screen and bought an iPhone 3GS. b/c i jailbroke and unlocked it for him, he gave me his MT4G. everything was FULLY FUNCTIONAL only with a spider-webbed cracked screen. i replaced the digitizer to the "T", being extremely careful of ALL flex-cables and heating all adhesive... except, the power button. i damaged it beyond initial repair but have the pieces. regardless of searching all posts abt "bypasses" (this fails alot i guess) i have yet to be able to power on the phone.
i have tried everything within a google search... "remove battery, plug in, replace battery" "wait for charging light and hold home button for 5-10 secs" "remove sim/sd card/ wait 10 mics" yada... still nothing.
has anyone fixed this?? is there a way to replace the "void" stickers and replace the phone since it is a known issue? ANY help at all is greatly appreciated! thanks yall

also... phone was STOCK and everything working, only a shattered digitizer. digitizer was changed and nothing else.

Send it to t-mobile and tell them it won't turn on
Sent from my HTC Glacier using XDA App

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White screen - is my Wizard dead.

my first for ages.
I recently purchased a wizard which looks to be virtually brand new.
now the other day I updated it the the o2 uk latest rom as it was running a really old rom.
and it has been running perfectly, i have not looked into running any other rom or performance upgrades etc.
now I was using the device in landscape and after closing the unit my screen went bright white and my pride and joy is now not usable.
I can still acept calls, the touch screen still works but the screen is pure white.
Ive contact a few places and they all say the screen has died and needs replacing
Does this sound right.
its a £80 fix if this is right. im so gutted.
any advice is great before i pack it up and send it off.
anyone please....
Can you put it into bootloader mode? If not i would say you have a loose connection on the screen to the mainboard i had the same problem with my old phone the screen disconnected for the main board so no display! If you cant get it replaced take it apart and carefully check the connections if still doesnt work i would try another screen or buy one.
even when i reset it, it stays whits so cant see anyhting on screen,
ive had someone take it apart and re-seat the cables and still just a white screen
so im off to purchase another one in hope this is all thats gone
as your phone is booting up press and hold the camera button, is the screen still white?
cant tell now. ive sent if off for repair.
Im gutted.
bleep said:
cant tell now. ive sent if off for repair.
Im gutted.
Click to expand...
Click to collapse
I had a similar issue, the keyboard sliding in and out must have worn out the switch that detects when it is open/closed. I had had my wizard a year and the screen started flickering, i dealt with it for a while, then the scree was stuck blank white unless if i pressed on the area of the phone that had the contact.
I had to send it back and got a refurb.
sounds like thats what happened to you too. Hopefully when you get it back it will be good as new
ive sent mine for a screen replacement tho not a repair.
now im worrying that its gonna come back in the same state.
Gulp
got my wizard back after having the screen replaced.
2 days later when ever i touch the bottom of the screen with pen, finger or even breath on it.
the screen goes off and the phone locks up and dies.
I have to take battery out and restart it and it then works great till i touch the bottom again.
Sound like a dodgy screen or something else.
Seems like a flexi strip(The one conecying the display to the mother board) sometimes if the strip develops a tear or is not properly connected this issue usually happens.
the shop doing the repair have said there is the following issues
1- padding issue on the screen (either too much or not enough)
2- Problems with the main board. (something on there is failling, hardware wise)
How the hell could this be happening on a device that was working perfectly
apart from the screen had died.
have they done more damage attempting the repair... I think so .!
I had the white screen 6 months ago. Luckily still under warranty period so got it repaired. It was the flexo-cable. since the fix no problem so far despites using the phone (also in landscape mode) daily.
when i got it back after the screen was replaced my xda worked great but as stated as soon as some preasure was applied to the bottom of the screen it would just die there and then.
I would have to take the battery out and then it would power on as normal
but again if i put presure on the bottom of the screen.. bang DEAD !
so sent it back to them and they told me what I stated above !
now waiting 2wks to hear what they are gonna do about it
not a happy bunny
still nothing back from the company thats doing the repair.
i dont know why they do this.
Im now thinking of getting my Xda back, selling it either on here or ebay and purchasing a new one.
Should i quit now or wait out for the miracle that they fix it completly.
Anyone in the uk reconmend a good repair company please im pulling my hair out.
http://forum.xda-developers.com/showthread.php?t=303872
theres your answer

HELP> Flashed Desire Rom, now screen wont light up

I have a serious problem. I noticed a bug in the Desire alphas where sometimes when the backlight went off during a call it would not come back on when the i took the phone away from my face. It always came back on eventually.
Ok now yesterday I flash alpha 8 and it worked fine. Now all of a sudden I reboot my phone bc the battery dies and the backlight won't come on at all! I know the phone is on because the haptic feedback and cap buttons are on and if I leave it on I can tell it's getting notifications.
How am I supposed to fix this?! I can't even see anything to get into recovery! My phone is unusable.
Find out every step to do a backup in recovery... see if that works
BlackHawk6 said:
Find out every step to do a backup in recovery... see if that works
Click to expand...
Click to collapse
Load into bootloader
Press power button once and wait about 20 seconds
press volume down once then hit power button once
Wait about a minute and move the trackball down slowly 3 time and press it
Scroll it down once and press it four times
trevorwhopkins said:
I have a serious problem. I noticed a bug in the Desire alphas where sometimes when the backlight went off during a call it would not come back on when the i took the phone away from my face. It always came back on eventually.
Ok now yesterday I flash alpha 8 and it worked fine. Now all of a sudden I reboot my phone bc the battery dies and the backlight won't come on at all! I know the phone is on because the haptic feedback and cap buttons are on and if I leave it on I can tell it's getting notifications.
How am I supposed to fix this?! I can't even see anything to get into recovery! My phone is unusable.
Click to expand...
Click to collapse
Unless your screen is broken you can always boot into recovery.
Take out the battery, then put it back in.
Hold the trackball down as you power on, this will boot you into fast boot.
Select bootloader, then select recovery. and bam your in recovery and can reflash.
I can get my phone into recovery. When I adb in i can push the phone into recovery, then when i hit adb devices it shows my phone and says recovery.
the problem is the backlight is not on even when i am in recovery. i would say the screen broke, but it seemed like a software problem, because it was just slow to come back on. It still always came back on. then I left it in my car chargine and it never came on again. The phone seems to be working fine though.
Kind of off topic, but did your call screen do this before flashing to Desire at all? Did you recently install a screen protector? I had problems with the PhantomSkinz screen protector making the proximity sensor less sensitive and behaved exactly how you're describing...as soon as I took it off it started working again. I'm now using a dcmugen88 screen protector and it works great.
interesting. i have one of those bodyglove or whatever protectors. best buy glued it onto my lcd. i suppose it could have started around that time. but would the proximity sensor still be deactivating the lcd even when its booting up or in recovery?
Oh, I must have overlooked that. The screen protector wouldn't cause any issues on startup or in recovery... guess it must be the rom then.
well, figured it out.
warning to n1 users: watch that lcd screen under the glass. its not nearly as sturdy as the glass cover.
the lcd/digitizer screen under my glass got cracked and stopped working. no drop, no warning, no funny colors. htc does not cover this in the warranty no matter how good the actual phones condition is.
i almost didnt get another n1, a phone thats inherantly weak (i found dozens of similar reports over the web) is not exactly a good case for a system with no insurance, no store to walk into, and very unhelpful support. they try to be very nice, but the rep i talked to couldnt even tell me whats covered and not. he just said let us charge 500 bucks to your card and we will ship a replacement, then decide if we think you have to buy it once we get your old phone. i demanded to talk to someone who did know. his manager denied hearing about lcd screen problems... after the original rep said he and htc knew this was a common problem. google didnt even return my email when i first contacted them saying my backlight was broken.
so again, be careful and get a good case.
trevorwhopkins said:
well, figured it out.
warning to n1 users: watch that lcd screen under the glass. its not nearly as sturdy as the glass cover.
the lcd/digitizer screen under my glass got cracked and stopped working. no drop, no warning, no funny colors. htc does not cover this in the warranty no matter how good the actual phones condition is.
i almost didnt get another n1, a phone thats inherantly weak (i found dozens of similar reports over the web) is not exactly a good case for a system with no insurance, no store to walk into, and very unhelpful support. they try to be very nice, but the rep i talked to couldnt even tell me whats covered and not. he just said let us charge 500 bucks to your card and we will ship a replacement, then decide if we think you have to buy it once we get your old phone. i demanded to talk to someone who did know. his manager denied hearing about lcd screen problems... after the original rep said he and htc knew this was a common problem. google didnt even return my email when i first contacted them saying my backlight was broken.
so again, be careful and get a good case.
Click to expand...
Click to collapse
ive got 5 bux that says the power connector to your lcd came lose so now the screen just doesnt turn on ... i have heard this issue before... send it in and get it fixed if its going to cost you then tell them to **** off and send their phone they just sent you back
Whatever rom you are running ask the developer of rom in his thread. That's where you will get the best information and help.

HD2 Screen Backlight Problem?

Hey guys! I have searched the forums and haven't found a problem quite like this yet. Recently, I got some water on my phone, but was able to wipe it off, and it worked fine, and the water damage indicators on the phone are still white. During that day though, after rebooting the phone, the screen appeared to not turn on, so i thought it WAS water related damage, of course.
I put the phone in rice for a few days, and NOTHING, till one day i looked at the phones screen under intense light.
The phone vibrates after you power it on, but then that's all you get, but upon further inspection under a bright light you can see the MAGLDR boot screen come up, and load all the way to the GO GO GO part, then it freezes and stops.
The screen is still black, and there's no light at all, you have to hold it DIRECTLY under bright light to see it.
I am ..or was...running the android NexusHD2 gingerbread 2.2 NAND (2.3.2) rom with MAGLDR 1.12 installed.
I can get into the boot menu, and all the hard buttons work. I can even play tetris, when i can see it. >.>
The MAGLDR seems to work fine, the android doesnt work, or load anyway.. I an go into USB flasher, option 5 on the boot menu, and reload android, but it does not resolve the problem.
Any suggestions oh wise XDA members?
I am not an expert when it comes to the hardware side of tbe HD2, bjt I am learning. It kinda sounds like you may have got some water inside the unit either through the speaker opening t the top of the front of the phone or in around the small openimgs around the buttons at the bottom of the front of the phone. My bet is it was the buttons cuase this is close to the digitizer. And it sort of sounds like the digitizer is malfuncting.
Seeing as you have tried reflashing the ROM the only real sugestion I got is maybe get you a small hex head screwdriver and open up your HD2. Take the mainboard out and the digitizer out and very lightly use a hair dryer on the low setting to try and dry them out. make sure to bold the dryer a good distance from them cause you do not want to get them hot just dry them out.
Now you still have a waranty I would just do a warranty exchange or have them repair it. If you don't have a warranty and don't want to try this I do not blame you. It is just the only idea I have. You can always find a cell phone repair shop and have them do it.
Best of luck.
This happened to me too. My HD2 was completely submerged, but luckily for me I had the torx needed to immediately open it up. I didn't use a dryer, but I did towel it off. Then I just left it off and apart for 5 days before I actually put in the battery and turned it on. I did have to replace the screen because it cracked to hell, but my main concern was knowing that it would still function. Good Luck.
Okay, I contacted HTC today after reinstalling winmo 6.5 stock for the HD2, A guy named bob told me I could send it in and have it repaired covered by HTC. My guess is that because the water damage indicators are white, they shouldn't void me, right?
I am guessing it IS the digitizer because of the following reasons.
Winmo works fine, though the sim card will need to be replaced, which is no problem. the touch screen does not function and the screen is still black and wont light up, but winmo boots successfully, like I said, viewing under bright light.
I think I am going to try and send it to HTC, if they say its void, then I am going to try repairing the digitizer, as the tmo digitizers are readily available now. Before that though, I will try your suggestion T-Macgnolia.
I'll post my results soon!

FIX for HTC HD2 touch screen not responding

After reading several posts to find a cure for my HTC HD2 unresponsive touch screen,( Slider wont slide to open applications), I decided to verify a theory. Software... Digitalizer screen, or power button.
Ok, first I Instelled about six different android versions, and the screen slide still failed. I reverted the cell back to original t-mobile windows software, and still locked screen.
Conclussion: The sofware is not the problem.
After several attempts pressing the red power button, I got the slider to open. Briefly, it locked again. Pressed the red button hard and tried to work the slide on the touch screen. Again briefly worked. After several more attempts I got it to slide and while the phone was awake, everything worked perfect. I played games, oppened applications, texted, made phone calls, and the touch screen worked flawless.
Conclussion: The digitalizer (Thin top glass screen on top of the display that responds to touch) is not the problem.
This led me to belibe that the power button was at fault. I called T-mobile and after explaining the problem, they decided to send me a different type of windows cell. I want my htc. So I declined the offer and decided to void the warranty and take matters in my own hands. Yes, I opened my HTC HD2. This is what I found: After about an hour I had carefully taken my htc apart without braking or scratching the phone or screen. When I finaly got to the buttons on the bottom, I noticed how cheap they where made. A thin copper circle on top of two contacts held in place by tape. Yes you heard right, tape. After a while, beating on the red end key for maybe a year or two, the tape brakes and the metal piece slides to the side, and makes the button to malfunction, that's why the hard pressing to make it work. I tried A bottle of comppressed power air to clean them before disassembling the phone but the way they are installed It's not possible to clean them like that.
Conclussion: The red end key is faulty.
I decided to keep the cell alive so I went on e-bay and ordered the buttons, and just in case I also got a new digitalizer for testing purpose.
The buttons panel was about 4 dollars and some change, and the digitalizer (touch screen) was about 14 dollars for a total of less than 20 bucks. (Worth it)
So here are some pics of my cell buttons, and what it should look like. After I get the parts and assemble it I will conclude and let you know the final and official veredict. As of now, it all leads to the button.
Please do let us know how you got on. I have a HD2 which I'd like to get up and running again so I can play with custom roms and leave my other mobile alone...lol. Any chance you could link to the places you got parts/tape from, and what tools we would need?
Cheers! :good:
Did it worked ??? i am also in the same situation...please share the details,
bijeeshvs said:
Did it worked ??? i am also in the same situation...please share the details,
Click to expand...
Click to collapse
+1
listening in as well
sheesh! my wife's HD2 also stop responding yesterday, seems like clockwork that a lot are having the same problem
first have to find "how to open your HD2" w/o breaking anything in the process :silly:
Damn. The second time I'm hearing about the red button giving problems.... Will be waiting results from you dude!!! +1
still wayting for the parts
Well, I am still wayting for the parts, they are on the way. The parts I found on E-bay. The buttons panel was about five or 6 dollars, I also got the digitalizer which was about 15 dollars. As soon as I get the parts, I will assemble my hd2 with the original digytalizer (the thin top screen) and test to make sure the buttons were the problem. If all goes well, I will post a complete test result with links to how to get the parts, a link on how to dissassemble the hd2 and all info I can to help on this issue. I did a step back in life, and pulled out my trusty 7 years old motorola razr v3 and stuck my sim card so i can talk and text 5 words in 7 minutes. No internet... I need my HD2... Well, I will report back as soon as I can. Thanks for the wait...
@dragonsuicida
will be waiting for your findings & ways to dis-assemble the HD2 :fingers-crossed:
You were lucky to find the buttons' panel for 4bucks. I just checked out Ebay india, and the panel is 40bucks!!! What a robbery!
Wow. Me too!
I have been running Win6.5 still on my HD2, and have found in the last few days, my screen locks and I can't unlock it.
I came here deciding it was a software issue and was going to look into putting Android on my HD2.
I was slowly coming to the conclusion that it was the power button.
If I make an effort to NOT touch it - my phone seems happy.
It's amazing that we're all having the same problem about 2 and a bit years down the track since the HD2 was released - almost a built in expiry!!
And yeah - lots of details on how to fix it would be great.
The HD2 is too good-a-piece of hardware to allow a ****ty hardware button to be the cause of it's death.
New Keypad Button Flex Cable Ribbon For HTC HD2
Copy this:
New Keypad Button Flex Cable Ribbon For HTC HD2 T8585 and paste it on ebay, it will bring the buttons for the htc hd2. I belive they all come from china, but after I test them I will let you all know if they work and if they are worth it.
Copy this: REPLACEMENT DIGITIZER TOUCH SCREEN LENS for HTC HD2 T8585 and paste it on e-bay and it will bring you the digitizer for the hd2.
copy this: http://www.youtube.com/watch?v=YdOC3Xxo_k0 and paste it on your web browser, and it will lead you to a video on How To Replace Repair Disassemble Screen Digitizer. When it gets to a part that say that you have to put the phone in a oven, is just to melt the tape or glue holding the screen to the phone. I just used a hair dryer to war the screen enough to carefully remove the screen and the digitizer from the phone without breaking them, It works. I will be back soon with more info. I believe my digitizer screen is on the mail box now. Will report back...
I have same problem. Today I bought a flex cable ribbon and waiting for the dispatch (estimated in 2 days). I will also report back..
Same problem here!
Hope to hear soon that this is the way to go to fix it
You have to stick back the tape in the housing. The tape is electrically conductive. It connects the ground of the keyboard flex cable with the ground of the housing.
Copy this: REPLACEMENT DIGITIZER TOUCH SCREEN LENS for HTC HD2 T8585 and paste it on e-bay and it will bring you the digitizer for the hd2.
Click to expand...
Click to collapse
Be careful! There are two types of digitizer:
- Solder version http://www.parts4repair.com/htc-touch-hd2-touch-screen-with-digitizer-solder-version/
- Socket version http://www.parts4repair.com/htc-touch-hd2-touch-screen-with-digitizer-socket-version/
Be very careful when ordering parts, specially the digitizer they have several kinds, solder and socket, and different socket sizes. Compare parts with the ones in your cell to make sure, don't just believe the advertisements.
Hi, any updates on this? I'm also having this issue, but in my case, even pressing end call really really hard doesn't solve the problem... snif..
+1 on that
i pressed all the keys even the lower part of the LCD & flashed new roms but no joy :crying:
will bring to shop instead I'm afraid to open it up, it might end up even worse
Just be extremely careful when you try this. That flex cable is so incredible fragile and easy to tear. My roommate tore the volume rocker section right off of his HD2.
Hi dragonsuicida
Were you able to get your touchscreen to work?

Some help trying to fix a Motorola Defy?

Hello, I have a Motorola Defy, that I dropped a few times, so the LCD screen got damaged with blue dots on it, I made a mistake and thought that the problem was on the touch Screen, so I purchased a replacement, installed but, it was damaged, the touch did not respond correctly, I wasn't able to type correctly among other problems.
I got a refund, then ordered a LCD screen replacement, now that I have it here, I install it, and it's broken:crying: I know, bad luck and being a rookie while trying to fix my phone, ok, I put back my old (damaged) LCD screen to use it in the meantime, and the old touch screen, but now, the old touch screen that was supposed to being working fine, it doesn't, it has the same problem as the touch screen that I bought.
Question is: the problem with the touch screen, could be related to the damaged LCD screen? or the motherboard of the phone is damaged? the phone works great, the apps, the games, everything but the touch screen and the LCD screen, but, as I said, I went back to the default touch screen after using the damaged one that I received, and it works worse I don't know what's wrong, please help me out, sorry for the long post
Please post questions in the Q&A section. Moved there.
Put it in the freezer for 1-2 hours
Sent from my MB525 using xda app-developers app
ppero196 said:
Put it in the freezer for 1-2 hours
Sent from my MB525 using xda app-developers app
Click to expand...
Click to collapse
Is this true?
true. fix some minor dead pixel if you put in freezer for one day. but your case... im dont hope much.
Try changing LCD + Capacitive Digitizer. (after trying the freezer trick ofcourse)
Well i will tell my story, which is related to your's as well,
i had a phone with resistive touch screen and it got screwed up, that is it does not respond correctly. So, i took it to the service center and they replaced the digitizer (touch screen) saying that previous one is broken. But, luckily the new one didn't responded to any touches they make.So, they replaced it again with the old one quoting that "your phone can't be repaired". So, i took it home with me.
Later i thought to calibrate the screen but the old one is not responding any more, no matter where i press
Later i calibrate it with the help of a software for windows mobile with the help of a PC. It took me to the calibration screen, from where i calibrated it, and voila, it worked... as good as a new one :victory:
long story short,
i think when you disconnected your digitizer, phones default values/drivers got messed up and are unable to find the new or the old digitizer you connect. I suggest you to go to the service center as these screens can not be calibrated.
Is there NO WAY at all to recalibrate the screen from the phone itself? or using an application? the delicalibration might be the problem....I'd like to fix it myself :/ thanks for the tip, never heard about it before!!
saman0suke1 said:
Is there NO WAY at all to recalibrate the screen from the phone itself? or using an application? the delicalibration might be the problem....I'd like to fix it myself :/ thanks for the tip, never heard about it before!!
Click to expand...
Click to collapse
Did you change the LCD and the Digitizer (both of em) again ?
dark_prince said:
Did you change the LCD and the Digitizer (both of em) again ?
Click to expand...
Click to collapse
I replaced my original digitizer screen for the one I ordered it, it gave me problems, so I went back to the original one, which was working fine, and now it's not fully responding, that's why I'm assuming is something calibration related, thanks!
help
my search button back light is not glowing ..i saw it is also not glowing in recovery...any help

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