yashsingh1/xdaforums huggingface dataset:
[HD2 Android Q&A, Help & Troubleshooting and Genera] termignoni:
sir, your solution worked for me.. a hard press on the "END" button woke up the digitizer.. so i do suspect that is in fact, dirt.. so i took my HD2 apart, cleaned in thoroughly, and now it's working fine!!

many thanks to you..:)
[HD2 Android Q&A, Help & Troubleshooting and Genera] mally2:
I am beginning to think this is a HD2 key pad flex issue, i have mine sent to the HTC service center today and have clearly advised them to only replace the flex of the keypad appr 10$, hope the issue will be resolved

will give you guys an update asap.
[HD2 Android Q&A, Help & Troubleshooting and Genera] martynas:
I also had such a problem. There were times 1/50, when digitizer was working when awaking phone with end key.

I have sent for repair (still on guarantee) and few days ago have got back. It's a pity but they did not share information what was changed or repaired.

It looks that the screen now is different, as there are now bruises on the surface (still not sure if there were any when I sent for repair, but after 1 year it should have been) and the screen was covered with protective film (or do they cover all the time sending back from any repair???)...

So anyway the phone now is working perfectly.

OT: during the repair time was using Iphone and checking other possibilities if the HD2 will not be repaired. I can say for sure that, I will not be using Iphone anytime soon. Too much of different limitations (on different data transfer). Most probably it will be Android but not sooner until they will fix all things with MS exchange. WP7 also looks more like Iphone thing with a lot of limits and some bugs of it's own.

At the moment for my needs there is no better system than WM6.5.x. Hope Android in next year will catch up and there will be an alternative to WM when the time will come to change...
[HD2 Android Q&A, Help & Troubleshooting and Genera] arkatis:
Nice post AngelDeath! I used to have the unresponsive screen on certain Roms. :confused:

The back button key is used more times than the End key (obviously) so maybe the press of the back key makes the end key unresponsive.

A friend got a Test HD2 like you are and his Back key is broken (stayed pressed all the way down) and the screen is unresponsive all the time. He press the End Key and the screen is on but he can't unlock the device. Maybe because the back key is pressed and the screen doesn't respond to your touches or is it because the back button is pressed end the End key is not in the right contact place to work.. I dunno!

He purchased a kit from eBay to fix it!

So the the Back button creates all the problems imo.

Be sure to use Button savior from the Market.:cool:
[HD2 Android Q&A, Help & Troubleshooting and Genera] pmbellis:
Note to self ...

... think outside the box.

AAARGHHH, can't believe I didn't try waking up with another button. :o

Tx. Works perfectly. :D :D :D

Now I'll just carry on using it like this until it finally gives up the ghost & then get the keypad replaced before the digitizer.

Tx a lot!!!!! :)
[HD2 Android Q&A, Help & Troubleshooting and Genera] pmbellis:
Thanks button

Hmm ... can't see the Thanks button today ... am I blind?? :confused:

Anyway, [OP], please consider yourself well & truely thanked! :D
[HD2 Android Q&A, Help & Troubleshooting and Genera] mally2:
sorry guys replacing the keypad flex from HTC did not fix the issue, seems like a dodgy digitizer issue, gotta get the digitizer replaced, sad scene
[HD2 Android Q&A, Help & Troubleshooting and Genera] tobiascrystal:
Wow, I nearly messed my pants this morning. I had my hands full walking into work and wasn't paying attention to what I was doing. Once I got in I looked at my phone and some of the sweat from my drink bottle had gotten on the glass of my phone and I wiped it off. The bad thing was I wiped it down towards the buttons. I tried unlocking my phone and nothing it wasn't responding. Luckily I pulled the battery and grabbed a can of air and blew out the keys and after what seemed like a gallon of water (ok not really) came out I restarted and as you can tell by the Sig it is working again :-)
[HD2 Android Q&A, Help & Troubleshooting and Genera] sskoul:
I fixed mine!

I have been using it for a day and it is going strong. I applied pressure using my nail on area just above my end key button and voila!!! Its working flawlessly!! No hang ups. I am attaching a diagram for you guys to understand what I did.
[HD2 Android Q&A, Help & Troubleshooting and Genera] arkatis:
Pretty weird nails you have there mate and pretty weird fix! lol :D

I might give it a bash when my screen stop working. Everyday i have this problem and it's a pain in the ass!
[HD2 Android Q&A, Help & Troubleshooting and Genera] Mafioso:
Whoaa :eek: i've been struck by same issue :( Touch screen not working...it works if I push end button at its sides many times but it stops working again if I press it normally :(

I have squaretrade warranty, lets hope they can fix it otherwise goodbye hd2 :rolleyes:
[HD2 Android Q&A, Help & Troubleshooting and Genera] arkatis:
I tried the method with the nail! Actually i don't have nails because i cut them but i try with something "nail" like such as a hard paper! It works just fine! And saved me for a lot of troubles! Thanks "Nail man"! :D:rolleyes:
[HD2 Android Q&A, Help & Troubleshooting and Genera] ocatapano:
I can confirm, follow the advice in this post because my htc hd2 had exactly the problems described by the author and change the Keypad flex buyed on amazon and the problem was solved, and no failure now.

Thi is was i buyed

http://www.amazon.com/gp/product/B004CTVZ3Q
[HD2 Android Q&A, Help & Troubleshooting and Genera] bojanbl:
I had also problem with unresponsive digitizer, tried everything, but all that was temporarily... If anyone of you disassembled HD2 than you remember where is position of digitizer flat cable? Below end key! Actually below upper part of end key :) Every time we press end key we also press flat cable of digitizer. So if you use that key alot it could end with unresponsive digitizer because you will damage flat cable...
[HD2 Android Q&A, Help & Troubleshooting and Genera] Shadowlux:
Proximity screen off/on

:D You can use this proximity screen off/on also: TAP TAP APP

https://market.android.com/details?id=net.maicas.android.wsleep&feature=search_result

http://www.youtube.com/watch?v=OlJ4ugCpeKc&NR=1
[HD2 Android Q&A, Help & Troubleshooting and Genera] chaxelos:
I discovered something here. yes, it seems that the only culpit is the "red button", i tried to remap the sleep to the windows button and everything seems to be working fine, the only thing i need now is to disable the power button completely. but the "buttonremapped app" wont do the trick, (it wont change its function even if remaped) i hope that our devs will be able to come up with a script or something to permanently diasble the button or atleast remap its fucntion to "NONE" (for future reapair if necessary) as for now, i'll try avoiding pressing the Red Button of Death, or my HD2 will suffer the Long sleep again.

you can still use the "menu function" by having button saviour coz i think its the least used button so i remapped it there and easily accessed rather than choosing the volume down button.

Hope this helps! :)

PS: and the power menu appearing once that has been a known problem in gingerbread has also been fixed. i can launch the power menu option as many times as i can. To Angel Death, hope i made a progress here :)
[HD2 Android Q&A, Help & Troubleshooting and Genera] chaxelos:
I finally got some solution here. It seems that the link to the power button also connects to the End Call button, so by remapping all the "end call" button to "menu" will disable the sleep mode of the power button. That way if you accidentaly pushed it, it will only lunch the rosie menu and avoid the SoD. Now i saved my Hd2 and have the power menu fixed at the same time!
[HD2 Android Q&A, Help & Troubleshooting and Genera] AngelDeath:
Now this I'm interested in. Need details :)
[HD2 Android Q&A, Help & Troubleshooting and Genera] chaxelos:
@angeldeath, i just remapped "POWER" to menu, all of it. Then upon holding the Menu button, the power menu option will appear as if youre holding the power button. And it can be done several times. It will still appear after the first attempt. Haha i dicovered this by accident, since im so freaked out last night that i thought my HD2 is dying. Sorry for my bad explanation, hope you understand :)
[HD2 Android Q&A, Help & Troubleshooting and Genera] AngelDeath:
Yeah thats what I tried to do and failed, so thats the details I want :D

PM me the details, app, how you did it etc, cause I have another HD2 with a bad end key and I would rather disable it then use it.

If you dont mind.
[HD2 Android Q&A, Help & Troubleshooting and Genera] chaxelos:
sorry for a very late reply. my hD2 is stuck again, turning on the device still need to push the power button so upon boot up the lockscreen will not unlock. its really bad since im selling it tomorrow and the problem came back. im satill trying my luck to have it remedied. I'll keep you guys posted if i find anything useful.
[HD2 Android Q&A, Help & Troubleshooting and Genera] dmunseyautotech:
Thanks...

Just wanted to say thanks...
[HD2 Android Q&A, Help & Troubleshooting and Genera] adarkn:
Hi,

I am discovering the same issue on my used HD2 (bought a week ago), also the power button seems broken (feels not like the other buttons).

Does your screen also freeze if you end a call with the button?

I just hang up with the end/power button and the screen froze.

Regards
[HD2 Android Q&A, Help & Troubleshooting and Genera] martijnmad:
O no not another thread about this haha LMFAO thank you youre post make me clean my hd2 today
[HD2 Android Q&A, Help & Troubleshooting and Genera] t00tall:
does the button feels same like the back button? If so, then your probably OK, cuz I've noticed that buttons for power and back are completely different from other buttons (other have a "black circle" in the center (on the board), and they click when pressed - unlike the back and power button, which are silent...)

I've fixed my unresponsive screen by opening the phone, and placing couple of pieces of thick double sided tape on the digitalisers flat cable connector (so it's pressed hard against the main board when the phone is closed...
[HD2 Android Q&A, Help & Troubleshooting and Genera] adarkn:
Hmm that's strange, because all of my buttons make the same "click" response except the power button.

Anyway I will send it back to the seller and get a new one.
[HD2 Android Q&A, Help & Troubleshooting and Genera] edyspunstr:
I have this same problem, but I am sure it's related to the "end Call" red button/flex cable. If you just barely touch the red button with your finger, it will "jump" to the Windows Start screen, which is the button function right in the middle of the function keypad. I think this flex cable is being damaged by the pressing too ghard on the end call red key.

Did you get this resolved on your phone?
[HD2 Android Q&A, Help & Troubleshooting and Genera] edyspunstr:
I'm really thinking it's the Flex Cable because just touching end call button

I have this same problem with the freezing, but I am really leaning toward it being related to the "end Call" red button/flex cable. I noteiced that if I just barely run my finger/touch the red button with the tip of the finger the screen - whatever screen I'm in - will "jump" to the Windows Start screen, which is the button function right in the middle of the function keypad. I think this flex cable is being damaged over time by pressing too hard on the end call red key.

Did anyone solve this only by replacing the flex cable? Did replacing the flex cable help in ANY way? Please advise.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Square Eyes:
Some more light on this issue...

Hi

I recently bought a HD Mini off Ebay which was in pristine condition and after installing a new stock rom (1.36.401.1) I started experiencing intermittent problems with the responsiveness of the touch screen. Sometimes there sometimes fine. Ever since I bought the phone I have had a simple numeric code set to unlock the phone.

Don't know whether anybody has any more light to shed on this but the other day I disabled the code required to unlock the phone and "touch wood" all seems to be back to normal. I don't claim that the fix is this easy but it's a strange issue. Anybody come across this?

Thanks for reading.
[HD2 Android Q&A, Help & Troubleshooting and Genera] t00tall:
The story goes like this… I’ve bought a used HD2 couple a weeks ago… the GPS didn’t work… after confirming that is not a ROM issue, I’ve decide it to open it on my own (it’s out of warranty). Didn’t do it in a most graceful way … it was a mess. Anyhow, I’ve was right, the LCD was replaced, and somebody forgot to plug the GPS antenna in the connector… after reassembly the touch started to size up periodically (and I’ve noticed a black – but lit, screen from time to time) :(

I’ve took it to some service shop, and the dude told me that all of the connectors lcd – main board / digitizer – lcd where cool … I was about to shell out around 100Eur for repair, then I’ve ran in to this thread, got me thinking and after some test I’ve started to notice a pattern.

Touch is working as long I don’t use the back and power button … I’m using Screen Off and Lock app for locking the phone, and menu/green and volume rockers for everything else… as long as I’m not pressing the back or power button, the phone seems fine... if I press it, it locks up, and I have to push the buttons hard or multiple times, or sometimes it starts working again if the "green" button is pressed...

From all of that, I'm

hoping

it's the button issue , I don’t see how could a defective digitizer cause the screen going black, and to function as long as the buttons are not pressed …

one of possible reasons for failure could be that I was pressing the power button hard these days, with tip of my finger because the silicone case that I bought is a bit tricky...

So I’m gonna try to change the button board on my phone first … and keep you posted.
[HD2 Android Q&A, Help & Troubleshooting and Genera] bojanbl:
Try to touch part of touch screen near power button so you can check is it power button problem or connection problem since just below power button is touch screen flat cable. I had this problem and also screen become unresponsive after touching that part of screen...
[HD2 Android Q&A, Help & Troubleshooting and Genera] t00tall:
Just tried it when i press the part just above the back button the screen freezes ...

also couple of times it opened youtube app thats on the second desktop, about two icons above and one icon to the right o.O, what could it possibly mean... maybe im just pressing it to hard...
[HD2 Android Q&A, Help & Troubleshooting and Genera] bojanbl:
That proves my point... Is is not power button problem, it is flat cable problem which connects Touch Screen with LCD. Position of it is under power button. So every time you press that button you press and flat cable. All of us HD2 users have to be aware that touch screen will stop working some day if we constantly use power button. Flat cable will eventually be worn and stop working...
[HD2 Android Q&A, Help & Troubleshooting and Genera] t00tall:
are you sure about that?

The touchscreen was replaced couple of months ago ... man! :/

I don't know should I even try to replace the flexboard now ... does anybody have a lcd/touch assembly to sell :)
[HD2 Android Q&A, Help & Troubleshooting and Genera] bojanbl:
I cannot be sure 100% but I am 98% sure :)

You can see on this picture how does touch screen looks. Also you can see that power button is above that touch screen flat cable...

In red square picture is mirrored, don't know why :confused:
[HD2 Android Q&A, Help & Troubleshooting and Genera] t00tall:
it's not like that, I've opened the phone, and the flat cable is bent upwards its located behind the LCD panel like so... there is no direct contact between the buttons and the touch flat...
[HD2 Android Q&A, Help & Troubleshooting and Genera] bojanbl:
I have repaired dozens of them and yes you are right that touch screen is bent but it is bent around LCD and connects to LCD. Problem is that lower part of LCD and touch screen flat cable is below power button, you can see it better on this picture:
[HD2 Android Q&A, Help & Troubleshooting and Genera] t00tall:
Damn :/ I was hoping that I wouldn't have to spend so much money on repairs :/ I'll try ordering the whole screen assembly off ebay...

how can I know which is the correct replacement part for my phone (it's not T-mobile model)...
[HD2 Android Q&A, Help & Troubleshooting and Genera] bojanbl:
You have only two types of LCD/digitizer EU (which you have to solder) and TMOUS/T-Mobile (without soldering, click connector)...
[HD2 Android Q&A, Help & Troubleshooting and Genera] :
umm.. in my case, the button "sticking" has nothing to do with the issue (It should not cause any issues unless you somehow dented the metal dome-like contact inside the button?). It is the problem with the flex cable "wearing out" or moving around too much. HTC didn't do such a good job designing the bottom of the screen/digitizer, and since the power button literally rests partially on the flex cable, the flex cable, after having pressure applied onto it so many times, becomes glitchy, and causes the digitizer to randomly fail.

My solution was placing a piece of masking tape on the edge of the lcd, so that it covers the flex cable. It is working perfectly now, and I hope it will help anyone else with the problems (and skills) to disassemble the phone and fix the issue without having to buy another digitizer.
[HD2 Android Q&A, Help & Troubleshooting and Genera] bojanbl:
That's the problem I was also pointing out few posts before... ;) So we agree that problem is in flex cable which becomes damaged after heavy use :D
[HD2 Android Q&A, Help & Troubleshooting and Genera] :
Yeah, basically ;)
[HD2 Android Q&A, Help & Troubleshooting and Genera] topjohn:
would you happen to have pictures of how you taped the flex cable? i'm desperate to get this damn thing working again. thanks either way!

it just occurred to me that you probably wouldn't want to open the thing again for pictures. can you give any more detail on where exactly you taped it? i'm looking at the picture a few posts up to try and figure out where taping it would help. thanks again!
[HD2 Android Q&A, Help & Troubleshooting and Genera] Fadik:
i dissassembled my hd2 before knowing that this is such a common problem and indeed it is clear that the digitizer ribbon is pressed upon each time we press END.

I tried to get a spacer between it and tthe end button but the clearence there is so little it is difficult to get anything to work 100%.

My best option would be a new digitizier! unless someone could come up with a better way!
[HD2 Android Q&A, Help & Troubleshooting and Genera] eelpout:
My problem isn't touch responsiveness via the digitizer (yet), but simply the power/end key, it has become ridiculously intermittent. Since I'm using WP7 more and more lately, this is a big problem as there is no way to remap its use like Android (that I know of). Just getting the HD2 to wake from sleep is a a lesson in frustration. :(

I find it incredibly odd that sometimes it works fine and and sometimes it takes multiple long presses to function. Maybe the cable has simply become loose. :confused:

Will replacing the Keypad Flex Cable fix this do people think?
[HD2 Android Q&A, Help & Troubleshooting and Genera] bojanbl:
If only your power button is unresponsive than replacing keypad flex cable will solve your problem ;)
[HD2 Android Q&A, Help & Troubleshooting and Genera] eelpout:
I talked to a local repair shop about it. It is an intensive amount of labor, but they still think it would be under $80. The part is only $15, but I've seen the video and not sure it's something I want to tackle.

Now to decide if that money would be better spent on a new HD2 or another phone...
[HD2 Android Q&A, Help & Troubleshooting and Genera] spyboy:
how did we all end up coming with the same fix.
[HD2 Android Q&A, Help & Troubleshooting and Genera] ayaskant12:
My keypad ie, the red button specifically has become very sensitive, almost like capacitive!!

What should i do?

It's the first day this happened and it's severe!

it just appears suddenly

Touching the end button even slightly wakes up the phone

Please suggest something
[HD2 Android Q&A, Help & Troubleshooting and Genera] pappadj:
I have 2 HD2s that are both having the same problem. I can resolve both by multiple "smashing" the power button and once it's working, it's fine, unless I have to hold the power button down even slightly (like to power cycle the phone). then the screen is unresponsive. I hardly ever can initiate a restart.

So at least I can use the phone but is there any trick to potentially cleaning under the button (toothbrush and alcohol, dry well?) or is the only fix really to go through the whole routine to open the phone and remove the digitizer and try the masking tape trick or something else?

Thanks

http://www.youtube.com/watch?v=YdOC3Xxo_k0

*UPDATE: locked the power button by holding it down and usually the only way to unlock it is to mash the button several times and may have to do it a couple times over but instead, I used an exacto knife and pried up a corner of the power button slightly and the screen responded fine after until I held the power button down again. So it's definitely something causing contact with the digitizer cable or something. I guess I have to figure out how to open this up and use some masking tape right? Time to get to work.*

** Update 2: I decided to play and see how far I can pry the buttons up and was able to completely remove them. Now this is not a great idea as the buttons plate is very flimsy and has edges that likely need to be put in from the inside but I removed the entire button plate pretty easily. I tried to get them back on and now the buttons don't sit perfectly and none of the buttons are easy to press... however... I don't have the locked screen any longer. I'll keep messing with this and try to figure out something to do to engineer a fix. I likely won't have any great ideas on this one but I'll do my best. Anyway, just wanted others to know this if you have given up on your HD2 but want to take a look at removing the buttons without opening it up completely ** and maybe come up with something to fix this a little easier. Hmm
[HD2 Android Q&A, Help & Troubleshooting and Genera] Worbit Jiminage:
I had this problem but I sent it back to HTC who replaced the screen and all of the front buttons:D

I even told them that I was out of warranty but they fixed it free of charge
[HD2 Android Q&A, Help & Troubleshooting and Genera] sokomind:
There is only and onlye one reason for unresponsive digitizer is fatigue of the metals.

http://s446.photobucket.com/albums/qq186/sokomind/hd2%20dokunmatik%20neden%20bozulur/

Ditigizer's flex cable lie just underneath the red power / end call button and every time you press that button, metal connection ways inside the yellow flex ribbon of digitizer got lose just like a paperclip, just like a open clips of a coke can.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Riz000:
very usefull post thanks all i also face this problem and successfuly repair with just cut some plastic for red button from lcd side now my hd 2 tech working smoth and good
[HD2 Android Q&A, Help & Troubleshooting and Genera] P3300tester:
Guys,

I had the problem "The Infamous Unresponsive Digitizier Screen" for a while and put it as a maybe sollution a few minutes (10) in the freezer as somebody else did in this forum...

I did not believe my eyes!!!

IT REALLY WORKS!!! Battery in again and it works perfectly ever since!!

SO before you bring your HD2 back to the repairshop!

PLEASE PLEASE put it in the freezer first!!!!!!

Greetz,

P3300tester....

P.s. Sometimes the unexpected..................
[HD2 Android Q&A, Help & Troubleshooting and Genera] vchigne:
How is it going now?