Touch Screen Problem on HTC Desire Z - G2 and Desire Z Q&A, Help & Troubleshooting

Hi All
For the last couple of months my desire has had an intermittent problem with the touch screen. All of a sudden it decides you're trying to pull down the "notifications" screen when you're just touching the touch screen, sometimes it also decides you're trying to hold and drag when you're just tapping the screen, sometimes it simply stops responding. These problems are usually solved by tapping the top button and putting the phone on standby then tapping it again and waking it up - although sometimes it then won't let you drag down the screen unlock until you repeat the on/off standby procedure a couple of times. The problem varies on connecting my phone to my computer.
Given that in between these instances the touch screen works as normal I'm guessing it shouldn't be a hardware issue, but the intervals between these problems appear to be getting shorter (either that or I'm just getting more annoyed by it recently). I've had a quick search of the forums and haven't immediately found anyone having this precise problem. Is it likely a question of trying factory reset and if that fails sending it for repair?
Thanks in advance

Similar issues. Don't think this is hardware.
Sent from my HTC Vision using xda premium

Gotta know more about the phone first. Is there a custom rom? Have you tried flashing to stock?

Dukenukemx said:
Gotta know more about the phone first. Is there a custom rom? Have you tried flashing to stock?
Click to expand...
Click to collapse
I'm having same problem, mine started couple weeks after I installed cm7.2, I tried another rom, no luck

Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium

Well since the OP didn't respond here's my suggestions. If you think it's software then just flash to a stock rom. You should find a number of them lying around the forums, and instructions on how to flash. This will mean your phone is unrooted and will need to be rooted, as well as taking care of installing a recovery and etc. This should correct anything wrong with the software.
Otherwise you busted the digitizer, which is actually very cheap to buy on Ebay. You will have to take the phone apart which can be time consuming.

strawmetal said:
Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Hello,
Any luck with the Tocuh Input, is your phone back from service? I am also facing the same issue....

I had this problem on my G2 a while back. It was a hardware problem so I ordered a new touchscreen and replaced it myself.
Sent from my Nexus 7 using xda app-developers app

htc desire z touchscreen details
Whiskey_Tango said:
I had this problem on my G2 a while back. It was a hardware problem so I ordered a new touchscreen and replaced it myself.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Hello Whiskey_Tango / Others,
Can you please let me know the details of the touchscreen component that you ordered for your G2? My HTC desire Z touch screen has also gone bad (unresponsive at multiple points) and I feel that changing the hardwre should do the trick.
If possible, let me know the touchscreen specs (model / part number) as well as any online website from where I can order it !
Many Thanks !!

From eBay search for HTC g2 digitizer
Be careful to get the one for the vision not for the magic
should be about $20
Sent from my Nexus 7 using xda premium

demkantor said:
From eBay search for HTC g2 digitizer
Be careful to get the one for the vision not for the magic
should be about $20
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Thanks for the quick response. Before coming here, I had a mobile service shop take a look at my handset and he had mentioned that for HTC desire z, the "touch screen" comes with the "display" attached to it. Did he meant the digitizer only or (digitzer + LCD screen) or he was simply trying to rip me off ?
I am very sure that there is nothing wrong with the display on my handset, its only the touch functionality that is not working properly.
Which one of the following do I need to search on EBay?
gultek.eu/htc-spare-parts/digitizer-touchpad/desire-z.html
or gultek.eu/genuine-parts/lcd-modules/htc/desire-z-hd3.html
or both?
Thanks again in advance !!

You need just the digitizer, if you're doing it yourself it takes about an hour if you've never done it before, don't buy the lcd if you don't see a flaw in it.
Some people sell the whole front chasis with lcd, digitizer, front bezel all connected for ease of replacement. May be easier but you will only shave of 30min tops and spend 3x as much
Sent from my HTC Vision using Tapatalk 2

yeah this happens to my G2 a lot. I got my phone fixed a while back (2-3 months ago) becuase the colors on my screen were screwed up and the ear piece was broken. i took it in and he replaced a couple of cables. it worked fine but now sometimes the screen is just having a straight up seizure. it flips through pages so fast and it goes from page 1-2 and back and forth and then the virtual keyboard presses multiple keys and just its crazy. i feel like the guy that fixed my phone didnt plug in a cable all the way. but yeah thats my problem. i dropped my phone the other day and ever since my phone hasn't gone into a seizure lol

Hi, did you solve your problem? I have the same with my desire Z. It click alone in several place on my screen.
And I ask me if the problem don't come from the lcd digitizer control instead of the touch screen digitizer

strawmetal said:
Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Hi, did u fixed your phone? can you tell me what was the problem.. even my phone is acting crazy.. wil that be fixed if i change the screen digitizer?

ahmedrzvi said:
Hi, did u fixed your phone? can you tell me what was the problem.. even my phone is acting crazy.. wil that be fixed if i change the screen digitizer?
Click to expand...
Click to collapse
Yes replacing the digitizer did fix my problem. And a year later the replaced digitizer started giving problems. So I ordered 2 extra digitizers off ebay. Both of them turned out to be duds. Surprisingly the second digitizer(which I replaced a year ago) fixed itself.

I think Im having the same problem,
bottom part of screen (including the home, menu, back, search buttons) aren't functioning half the time,
is there any service manual, or link to information as to what I need to tear apart on my DZ?
should this be enough? EBAYLINK
what do I need to replace the digitizer?

Related

Display problem!! Please help!

display does not always work. The phone is not rooted. So I don't use set cpu or anything like that. The problem that I am having is when I turn the phone on (after it is shut down) it does not display the htc logo, then when it gets to the g2 it does not display that either. When the finishes turning on the screen is still black. I can press the digitizer where I know the unlock is and I can feel it vibrate then when I unlock it I can still feel it vibrate when it unlocks and it takes about 2 to get the screen on from this just pressing the on and off power button. Some1 please help. PLEASE HELP!!! Any Ideas?
Sent from my T-Mobile G2 using XDA Premium App
Sounds like a dead LCD unit. How/when did this start happening?
Dang so the lcd is not even turning on? Since your not rooted you should get a replacment phone
Sent from my HTC Vision using XDA Premium App
masroorkhan said:
I searched other forums and seems like I am not the only one with this problem. All they suggested was to take out the battery, mem card, sim and leave it for a while and then put everything back in, the display was working fine again. Unfortunately, it didn't work for me, not even restoring factory default, not to mention going through that painful "shooting in dark" process.
I am already aware that if all things fail, LCD has to be replaced. Other than that if anyone has any other suggestion(s), it'd be much appreciated. Otherwise thanks anyways
Click to expand...
Click to collapse
I am going through same problem. Haven't found a 'non-LCD replacement' solution yet. Maybe the above will make things work for you. There was one guy who said he turned on the phone without the mem card. So you can try this as well.
If you find anything else, please share.
Good luck.
I didn't think it was a dead lcd because after about 2 minutes of the phone already running the lcd will turn on again. and I saw your thread that said to take everything out I did try that and it did not help. any other ideas?
Does the screen flicker? If you open it up halfway and gently nudge the flex cable, does it do anything?
I juat tried and it does not flicker at all. Once the screen in on there are no problems, its getting the screen on that's hard. Its realy weird. And it started about a week ago and the phone is out of warenty.
Sent from my T-Mobile G2 using XDA Premium App
It doesn't sound like it should be a problem but I want to root it. And install a custom rom, and I am scrared to do that because when I boot into recovery I cant see the screen.
Sent from my T-Mobile G2 using XDA Premium App
How can it be out of warranty? G2 wasn't released until October 2010 and HTC provides a 1 year defect warranty. Here is the link. http://www.htc.com/www/support/warranty.html. I didn't look at anything outside the US though.
This is not a caused by physical damage so should be covered??
Also, Tmo, if that's who you're with might just send you a new one?
I'm assuming you don't have the Asurion 5.99 plan? That would cover it for $130 last resort.
Oh, also, Visa or Mastercard will sometimes take care of you if you used it to purchase the phone so check with them in a pinch.

Hardware buttons starting to fail??

I've been noticing recently that my hardware buttons have been acting up, sometimes it dosent respond or sometimes it registers two presses. My contracts up next April so not in warranty but have insurance. I'm using rcmix s, could it be a rom bug or is my desires hardware buttons malfunctioning
Sent From My HTC sensation (desire with rcmix s )
In my case, I have had problem with back and home keys when the phone gets heated. Tried other roms and even unrooting but didn't work. After replacing mainboard it goes well.
Sent from my HTC Desire
If your in the uk your warranty is 2 years.
Sent from my Motorola Startac running Atari 2600 software!
I notice the same behavior with my hardware buttons. I Bought my HTC Desire in April 2010.
I first thought it was software related, but after flashing different roms with full wipe the problem still exits.
Here in Germany the warranty is 2 years, so I think I will send it to repair soon.
If I send it back for repair would they repair the buttons and send me back the same phone? I'm not keen to have mine replaced with an SLCD screen.
I'll leave it until my summer holidays and then return my phone, in the meanwhile I'll try some different roms, I think it might have been because I took my invisishield off and then dropped my phone face first but that was a week ago it only started acting up yesterday
Sent From My HTC sensation (desire with rcmix s )
my "menu" button is partly dead, it sometimes works and sometimes dont, i just have to push little bit harder :/
Hi,
Search on ebay for
HTC Desire Optical trackball and keypad membrane,
Buy it.
Search for HTC Desire repairs on ebay and watch the guide for taking your Desire to bits.
Take a deep breath and get your tools out and fit the new bit.
Phone back to like when it was new.
Job done!
Sent from my HTC Desire using XDA App
My volume down button is a pain to use, but if I get it right it still works. All the other buttons are ok but the menu and back buttons have lost some coating to them.
Sent from my HTC Desire using XDA App
Jasand said:
My volume down button is a pain to use, but if I get it right it still works. All the other buttons are ok but the menu and back buttons have lost some coating to them.
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Same problem here. I've had mine for about 15 months. I just upgraded to a Sensation, but I'd love to keep that around as a spare phone.
I wonder if it's a "user-fixable" problem...
Hey there Tes (remember you were one of the earliest Desire users on this board)!
I'm also concerned about sending back my beautiful AMOLED desire and getting an SLCD pig back. The other concern is rootability, can the new Desires be easily rooted?
Bump it.Same problem, buttons are failing.
Sent from my HTC Desire using XDA App
two week ago this problem started on my phone. The home button isnt working very good anymore. and the volume down is buggy to. Is it possible to be an software issue? or is this always a hardware fault?
Always a hardware fault
Sent from my HTC Desire using XDA App
Weird, same thing happened to me two weeks ago. Home button and back button fail to respond at times. Thought was a ROM issue ( using insert coin ). Got my phone in April 2010, was the life expectancy of the hardware buttons 15 months ?
Sent from my HTC Desire using XDA App
Aitese said:
If I send it back for repair would they repair the buttons and send me back the same phone? I'm not keen to have mine replaced with an SLCD screen.
Click to expand...
Click to collapse
I wouldn't bet on it, even with a written notice they will somewhat change the LCD.
My volume down button has been dodgy since I got the phone, and recently my home button has become rather temperamental. I've not once thought it was a software problem though, its obviously hardware.
Most of us here use these phones day in day out relentlessly, so obviously the buttons aren't going to be as responsive as we would like!
Its a huge inconvenience though
Dan.
Swyped from my Oxygenated HTC Desire
The 'volume-down'-button started to fail about a month ago. It worked, but often I had to press it twice before it did something. About a week ago it got even worse, and the 'volume-up'-button also fails now!
I sent it for repair three days ago, they said it will take between 3 and 5 weeks
my volume down button started slacking badly, it responded to every third press or to really hard ones...
I removed root and s-off via ruu, sent it on guaranty repair, and got it back 10 days later. its working fine now, paper said they replaced "flex grid".
there is a rule in my country that if they dont repair it in 15 days they have to give you new device, so check your local laws and guaranty papers.
cheers
EU law - all electrical equipment sold in the EU has a 2 year manufactures warranty.

Screen problem?

Hi there, lately I got a strange issue:
Sometimes my screen vould go unresponsive, the phone vibrates twice and It will show the recent apps. The capacitive buttons from the bortom do not work either. Wherever I touch the sxreen the recenr apps list would dissapear, if I touch rhe screen again, they reappear, but otherwise rhe screen is unresponsive. I can switch the phone off, then back on, and also unlock the screen, but then it becomes uresponsive again. This is happening randomly, for intane right now my phone works great. This was hapening on Andromadus audacity b 5 and alsi on sensewich b 7. Anyone else experiencing this or has a solution? Rhanks in advance.
Sent from my HTC Desire Z
I'm experiencing similar issues on mimicry. Specifically my capacitative buttons are giving me a headache. I'm currently on elite mod with ics touch buttons enabled for safety. Haven't faced the capacitative buttons issue yet since 2days but my entire screen stopped responding to touch(tested with keyboard to make sure the phone didn't hang) randomly...
Sent from my HTC Vision using xda premium
The phone isn't hanging, on sensewich beta 7 when I press the trackpad I get the mouse pointer wich I can move, just the touchscreen and the capacitive buttons are playing crazy. It is also very hard to replicate the issue, so sendig the phone in for repair wouldn't do much good, because there is a good chance for it to behave normally...
Sent from my HTC Desire Z using Tapatalk 2
Same with me dude. I'm able to use the menu button on the keypad to confirm that the phone didn't hang. At times there are only random areas of the screen which won't repond to touch. Guys please help us confirm as to whether this is a hardware or software issue..
Sent from my HTC Vision using xda premium
Edit: Flashed EliteMod CM7 only to find out that this issue remains to persist. Looks like i'll have to get it repaired.
I am very curious how you would replicate the issue for the service tech. If you just send it in, most probably they would send it back to you saying it's all good. If you do send it for repair, please update this post with the findings.
Thanks,
Sent from my HTC Desire Z using Tapatalk 2
Nobody else experiencing same issues?
Sent from my HTC Desire Z using Tapatalk 2
Definitely not an underclock issue?
wileykat said:
Definitely not an underclock issue?
Click to expand...
Click to collapse
I was thinking about that as well, and I have set min speed to 844 mhz (stock) and I have the same issue, so I don't think it is that.
Sent from my HTC Desire Z using Tapatalk 2
+ setting to performance doesnt change a thing either? Sorry, i'm all out of any other suggestions.
Hey i returned my phone to stock froyo 1.34 with s-on.. First day capacitative buttons started working. Second day the non functional horzontal strip in the middle of my screen started working. I'll stay on this stock for a week to test my screen thoroughly and then decide whether its a software issue or hardware. By the way i actually opened up the phone to every part and then put it back together, maybe this is what helped me.
wileykat said:
+ setting to performance doesnt change a thing either? Sorry, i'm all out of any other suggestions.
Click to expand...
Click to collapse
Unfortunately not, I set the governor on performance, but to no avail. I have no idea what's causing it, as it is very random. And it happened to me on both andromadus and sensewich roms, so I doubt it is rom related. I am just too lazy to return to stock and see if the problem persists...
Sent from my HTC Desire Z using Tapatalk 2
I see that lately a lot of "screen not working" issues appeared. Could it be kernel or ICS related?
Anyone sent it in for repair and already got it back. What was fixed?
Sent from my GT-P6800 using Tapatalk 2
Whether I'm on froyo stock or gingerbread stock my capacitative buttons aren't working. Even parts of the screen take random inputs without my interaction. Areas which have the issue respond perfertly to my touch on the lockscreen(lockscreen always works perfectly). I'm giving my dz for service tomorrow. Let's hope. It gets fixed.
Sent from my HTC Vision using xda premium
strawmetal said:
Whether I'm on froyo stock or gingerbread stock my capacitative buttons aren't working. Even parts of the screen take random inputs without my interaction. Areas which have the issue respond perfertly to my touch on the lockscreen(lockscreen always works perfectly). I'm giving my dz for service tomorrow. Let's hope. It gets fixed.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Please keep us updated. If u can find out what was fixed it would be great. Thanks.
Sent from my GT-P6800 using Tapatalk 2
Ok, yesterday I unrooted and returned to stock completely and since then my phone is working fine. Will do som more testing before returningfor warranty
Sent from my HTC Vision using Tapatalk 2
Hi,
I'm facing a similar issue ever since I rooted my device. The touch screen behaves strangely at times (becoming totally unresponsive in morning when I use it after around 6 hours of inactivity), the hardware buttons don't respond either. I keep on rebooting the devices, fixing the permissions etc. and then after some time, life comes back to the touch screen and the buttons. They also become unresponsive at random and it is very irritating when you pull your device to call someone or receive a call and then it does not respond .
Also there is a horizontal strip in the touchscreen that doesn't resister any touch (I cannot play 'Frontline Commando' due to this). Strawmetal! is your device still behaving properly after all the fixes you did? Have you reverted to ICS yet and found the phone working properly? This issue is draining all the charm of having a rooted mobile away :crying:
I do not think rooting is the problem here. My phone was rooted and my problem started only a few weeks ago after my son dropped it on the kitchen tiles... Now I reverted to GB stock and this moening I had the freeze once or twice. However, I don't need to restart the phone, power button does the trick for me. All I do is switch off and back on. And the screen and capacitive buttons are responsive again
Sent from my HTC Vision using Tapatalk 2
Hi Regius,
I agree rooting may not be the problem but there are chances, though slim, the roms we are using they have some problem. In my case, I have another probable culprit: I was caught in heavy rain. Though I protected my device but I doubt that some moisture seeped in. I rooted it after that so cannot say clearly what is behind the issue. Since I saw that Strawmetal is also facing similar issue, I made a wild guess. Now I'm trying to muster enough courage to dismantle the device and reassemble it. I can also notice a small smudge inside the screen at the top-right corner (perhaps this is a proof that moisture seeped in).
Coincidentally, I used Strawmetal's directions for rooting that he has put at one place. Wonderful effort on his part.
Sent from my HTC Vision using xda app-developers app
---------- Post added at 07:42 PM ---------- Previous post was at 07:19 PM ----------
One more issue that I forgot to mention: I cannot pull down the notification bar directly (as we did in gingerbread) but have to manage it via launcher settings. I remember this issue got corrected occasionally when I used sense based roms initially.
Sent from my HTC Vision using xda app-developers app
Well guys returning to stock seemed to work for an hour. But then it started all over again. So fearing i would lose all control of the capacitative buttons i rooted back and am using Elitemod with the on screen buttons enabled. My capacitative buttons have comepletely gone out( no amount of reboots, kernels would fix it). So 2 weeks ago i took it to a htc service center. Heads up*(I'm living in a metropolitan city). The guy there says that they are not *authorized* to open the hardware of the phone. They only look into the *software issues* which I guess is just flashing an RUU (F*** you HTC). He says they haven't received replacement parts for many phones since 3 months and he recommended me to leave my phone with him so that he could contact me when and if the parts arrive(facepalm). I quietly walked out and went to another service center where they told me the same thing, but that they would send my phone out of the country and I would have to pay $30 for the shipping whether or not my phone is fixed. Charges for repairs would be extra. So all I did was hit up ebay and ordered a digitizer for $40 on August 1st. I got shipped by the seller today. I'll be receiving it by 24th of this month.
In the meanwhile I needed a rock solid phone for my regular use and I knew that if I got an android, it would mostly remain in the recovery mode. So I got myself a Nokia E6($370). This is giving me 6 days of battery backup on heavy usage. Standby is rated at 30 days( I guess it'll give me 20).
Let's hope that I get a working digitizer from that seller and it will fix the issue on my beloved DZ.
Finally HTC go dig your own A**!!
EDIT: Before all these problems started my phone slipped from my lap and slid across the floor without taking a single scratch. This drop might have been the cause.
Hi Strawmetal,
Just one more check: install a sense based rom (4.0 would be better as they are not as heavy as 3.5) and see if the buttons respond! Just a gimmik but I realise by device responds better when one a sense rom.
And HTC is dying its death...they are closing business in some countries, shares are falling
Sent from my HTC Vision using xda app-developers app

Digitiser non-reponsive, need to root.

Okay, I haven't actually used this phone in ages, over a year, but a friend of mine is long-suffering with a BlackBerry and I feel obliged to end her suffering. There are two problems:
1) She wants Sense 4.0.
2) The digitiser is smashed and non-responsive. (A replacement has been ordered)
Now, I am sure that there is a few Sense 4.0 ROMs lying around here due to the fact that HTC released the Desire C, which has the same resolution screen.
So, I started to go through the process of unlocking bootloader, flashing recovery etc and fell at the first hurdle. When I had this, I didn't even look at the developer options, which seems to have screwed me over, because USB bugging is disabled.
So, basically, does anybody know how to enable USB debugging without actually using the screen? Or anything that could enable me to get all of this done now, so I can just replace the screen when I get it and give her the phone?
Nope. Gotta have the screen! And there's not a single sense 4 rom and there never will be. Desire C is armv7 the WFS is only armv6; it's not a case of screen size, but processor compatibility
Sent from my Wildfire S A510e using xda app-developers app
Ouch.
Indeed, you're going to have to fix the screen first.
I faced a similar problem some time ago. Unfortunately, the digitizer has to be fixed first
Alrighty then. I've seen many reviews saying the far right side of the screen often does not respond on replacement, is this true? I was looking at one on Amazon, although the seller is "HTC" I don't buy that for a second.
Sent from my HTC One S using xda premium
I'm very curious on how you proceed on this. I got the same phone and exchanged a non-responsive (shattered) digitizer to a new one which also seems like it is totally unresponsive.
I have read that you need to go into diag mode and calibrate the phone after exchanging digitizer, which seems impossible without USB debugging is set to ON. Unfortunately mine is set to OFF and I'm stuck with an unresponsive digitizer...
Did you get it to work?

Touch not working 99% of the time

Hey!
This saturday, I noticed something wrong with mt HTC One X (stock rom). It didn't respond at all when I touched the screen, it was active though but the touch didn't seem to work anymore. After like 50 attempts with reboots and all, it worked, but the problem came back later, and again today. I did a factory reset to no avail, as the furthest I managed to get was the part of the first-time start-up where you select WiFi, so that's pretty much unlock + 1 click until it broke again.
Any idea on what's wrong and how to fix it? I'm guessing it's the digitizer, maybe it could be worth for me to open the phone up and see that it looks alright, if that's somewhat easy to do?
Thanks.
Edit: Oh, and when it works, it works for a few seconds usually until it hangs on a random press (keeps that pressed down).
Looks like a hardware failure, go back to the re-seller. You probably still have warranty.
And if you dont have warranty it's easier to replace the digitizer & screen in once. Separating the display from the digitizer is ..... how do i say it correct ...... CRAP
Sent from my HTC One X using XDA Premium 4 mobile app
Mr Hofs said:
And if you dont have warranty it's easier to replace the digitizer & screen in once. Separating the display from the digitizer is ..... how do i say it correct ...... CRAP
Sent from my HTC One X using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Guess I'll go to the re-seller then and have a chat with them, cause I'm not going to pay anything to fix it to be honest, I'm getting a new phone in 3-4 months so I hope I can survive with my old HTC until then! And if the re-seller isn't keen on doing anything, I'll talk to my insurance company, see if they'd agree to replace it with the HTC One perhaps, fingers crossed.
Okidoki, good luck mate !
Sent from my HTC One X using XDA Premium 4 mobile app

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