Develop Bugs

Capacitive button not working

I dropped my HOX and cracked the digitizer a while ago and i still used my hox since to me it's not really a problem to have a broken glass. A couple of days ago capacitive buttons started to malfunction. Now they are not working anymore. I installed Button Savior to make the phone still usable, but now i am looking forward to solve the problem.
I am asking a simple question because i opened my hox so many times resolving GPS and WIFI malfunctions (my WIFI and GPS now are stronger than Galaxy Nexus', so that's a hardware problem), and played a lot with the connection to antenna pins. There is the remote chance that i actually broke something on the mainboard. The question is: replacing the digitizer+display would 100% solve the problem of capacitive buttons? Are the capacitive buttons totally integrated with screen digitizer?
Maybe it's just a silly question, but i want to be sure before buying a spare display+digitizer.
Picture of the broken glass:
http://imageshack.us/photo/my-images/834/img20121007021243.jpg
http://imageshack.us/photo/my-images/717/img20121007021307.jpg

Bump!
I'm also having troubles with my capacitive buttons..
Opened my HOX to fix the Wi-Fi/Bluetooth issue with a couple solder point, closed it back, connection is now amazingly good, but:
-I have no lights on my capacitive buttons (except for the lights off they work alright).
-I have no sound on my loudspeaker (the one behind the device), tested it with a 1.5v battery (like this: youtube.com/watch?v=xIMHGkxw72o) and the speaker itself is fine, but, no sound.
I'm from Brazil, no HTC presence here, so, no authorized service where I can send it to be fixed.
I'm hoping you guys could give me some help on how to proceed to identify/ fix those issues!
Anything???

rafaumm said:
Bump!
I'm also having troubles with my capacitive buttons..
Opened my HOX to fix the Wi-Fi/Bluetooth issue with a couple solder point, closed it back, connection is now amazingly good, but:
-I have no lights on my capacitive buttons (except for the lights off they work alright).
-I have no sound on my loudspeaker (the one behind the device), tested it with a 1.5v battery (like this: youtube.com/watch?v=xIMHGkxw72o) and the speaker itself is fine, but, no sound.
I'm from Brazil, no HTC presence here, so, no authorized service where I can send it to be fixed.
I'm hoping you guys could give me some help on how to proceed to identify/ fix those issues!
Anything???
Click to expand...
Click to collapse
I went on a rage and FULLY disassembled the phone... putting all back together later on.
Everything is fine now!
For me, I GUESS this cable was disconnected: etradesupply.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/o/e/oem_htc_one_x_navigation_light_flex_cable_ribbon_4_.jpg
It's related to capacitive buttons light and loudspeaker (I don't know if anything else goes trough it)...unfortunately can't use this solution for nonworking buttons...
=/

sorry for bring alive this thread but im very interested on thi issue, im having the exact same problem after "fixing" wifi issue :/ does reaplcing the digitizer fixes this problem?

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eltoffer said:
sorry for bring alive this thread but im very interested on thi issue, im having the exact same problem after "fixing" wifi issue :/ does reaplcing the digitizer fixes this problem?
Click to expand...
Click to collapse
I've also just had an issue with non-working capacitive buttons, they light up but won't actually do anything, the phone hasn't been dropped and is usually left on the sideboard in the bedroom as I mostly use my newer HTC One instead, any reason why it would just suddenly just stop like that? was fine the day before whilst playing a game on it.

[Q] Weird touchscreen behaviour (only works when keyboard is flipped out?)

Hi everyone,
I've had my Desire Z for little over 2 years now and two months ago (was running CM7.2 at the time) I started getting a weird issue where my touchscreen would only be responsive when the keyboard was slid out (so the opposite problem of what quite a few other people have reported where the touchscreen becomes unresponsive when the keyboard is out). The status LED would also stay off whenever the keyboard was closed, and the keyboard backlight didn't come on anymore at all. Also, I had to make sure that the keyboard was slid out during boot, if the phone booted without the keyboard out the screen would not become responsive at all until after another reboot. My earpiece speaker stopped working around the same time so I was wondering whether it was just an issue with the flex cable becoming a bit loose, but the touchscreen would consistently start working again when I flipped the keyboard out, and also the physical scroll button on the top bit would always work, so I was still hoping it would be some weird software issue.
I then upgraded to Flinny's (amazing) Andromadus ROM (build 22, complete data+dalvik wipe) after which the keyboard backlight started working again, but the rest remained pretty much the same. Since then the touchscreen issues have been getting worse, so that I sometimes have to flip the keyboard in and out again a few times, or turn the screen on or off with the power button several times before it becomes responsive again, but then it tends to work fine until I lock the screen again, with no noticeable dead spots anywhere on the screen. I've had days where it worked all day without problems (except having to flip out the keyboard, that's been a constant for the past two months), and then today I haven't been able to get the screen to do anything at all even after dozens of reboots.
I've already bought a new digitizer and am all ready to put it in (I'll have to replace the broken earpiece anyway), but was wondering whether anyone has any thoughts on whether it could still be a software issue after all, or if anyone has experienced anything similar? The thing with having to flip the keyboard out to get not only the touchscreen but also the status LED to work is just so weird and makes me doubt that it's a pure broken digitizer or lose flex cable issue, so I'm wondering whether it would be better to first try reverting to a stock ROM before taking on the messy sticky glue stuff (I should be fine but still, never done it before)?
Many thanks!

From what you describe my best guess would be the main flex cable is what needs to be replaced. Flash a touch based recovery and see if you have the issue there as well, if so its very unlikely that its anything but a hardware fault
Sent from my Nexus 4 using Tapatalk 2

Thanks for the heads-up, I've been playing around a bit more with software and I do manage to get the screen working again occasionally, typically after the second boot into a newly flashed ROM or restoring a backup, and only until one or two reboots later when it becomes completely unresponsive again. I've tried CM 7.2.0 as well as Flinny's Andromadus 10, and it is only complete flashing that does the trick, cache wipe or factory reset alone does nothing. The two occasions where the touchscreen worked were still limited to when the keyboard was flipped out, and it also had to be flipped out during boot, otherwise nothing would work. I've learned to navigate my way around the phone by just using the hardware navigation button, but I'll have a close look at the flex cable when I take it apart to replace the earpiece speaker tonight...

Hello,
so I took my dear phone apart yesterday to replace the broken earpiece - everything went fine but after reassembly the replacement earpiece isn't working either, which leads me to think that all those little broken bits might actually be related to some contacts being a bit lose, all in the same region. Should've thought about that earlier really since the earpiece and the LED (only works when keyboard flipped out) are both in that top region that the digitiser data presumable also has to run through before passing through the flex cable.
In any case, I also took a picture of the flex cable which is slightly bent but doesn't seem straightforwardly damaged (see attachment, that thing on the right is *not* a rip). Think it's worth trying to replace it anyway?
What was truly bizarre is that after the first boot following reassembly the touchscreen worked quite consistently for the entire evening - I thought I might've fixed a lose contact by un- and replugging the digitiser cable, but then the screen went nonreactive again at some point. I wonder if the working screen was again actually related to some software reset caused by the battery being taken out for so long? In the meantime the actual screen and trackball are still working away perfectly. Bizarre.

Just to let people know the solution to the mystery: the increasingly odd behaviour was actually caused by an initially small rip in the flex ribbon cable that got bigger and bigger - it's actually half-visible in the picture I uploaded above, only that the rip is where the cable comes out from underneath the case, and not where it's wrinkled!
Just in case it could be useful for anyone, here's the (top half of phone) components in the order in which they failed on me, which I guess corresponds to the order of the respective data lines in the ribbon cable (from the top of the phone towards the center):
environment brightness sensor (I thought that the sensor had been broken for almost a year, but as soon as I rebooted with the new flex cable I noticed how my phone stopped shining into my face at full brightness - if your brightness sensor gets stuck reporting the same (low) value this means your flex cable is on its way out!)
earpiece speaker
status led
touchscreen
screen (non-alignment with edge of screen, visual artefacts)
screen (fade to black/power interrupt)

obstacle3 said:
Just to let people know the solution to the mystery: the increasingly odd behaviour was actually caused by an initially small rip in the flex ribbon cable that got bigger and bigger - it's actually half-visible in the picture I uploaded above, only that the rip is where the cable comes out from underneath the case, and not where it's wrinkled!
Just in case it could be useful for anyone, here's the (top half of phone) components in the order in which they failed on me, which I guess corresponds to the order of the respective data lines in the ribbon cable (from the top of the phone towards the center):
environment brightness sensor (I thought that the sensor had been broken for almost a year, but as soon as I rebooted with the new flex cable I noticed how my phone stopped shining into my face at full brightness - if your brightness sensor gets stuck reporting the same (low) value this means your flex cable is on its way out!)
earpiece speaker
status led
touchscreen
screen (non-alignment with edge of screen, visual artefacts)
screen (fade to black/power interrupt)
Click to expand...
Click to collapse
I'll for sure keep that in mind. Mine is still going strong for the time being, but it's good to know some warning signs if I need to replace parts or if it's time to get a new phone

fireball0093 said:
I'll for sure keep that in mind. Mine is still going strong for the time being, but it's good to know some warning signs if I need to replace parts or if it's time to get a new phone
Click to expand...
Click to collapse
Replacement parts all the way, the repair was 15$ and it feels as good as new! Well, it could do with a new battery but that's just another 5..
Just realised that the proximity sensor should actually be added to the very top of the list - just noticed that faint red light when taking a phone call, don't remember seeing that in almost a year :]

obstacle3 said:
Replacement parts all the way, the repair was 15$ and it feels as good as new! Well, it could do with a new battery but that's just another 5..
Just realised that the proximity sensor should actually be added to the very top of the list - just noticed that faint red light when taking a phone call, don't remember seeing that in almost a year :]
Click to expand...
Click to collapse
That's not a bad cost at all. I know I'm going to have to replace my keyboard in probably 2 months or so (maybe sooner) because some buttons are starting to not work. Other than that fact my phone is currently still going strong for being going on a 3 and a half year old phone

[Q] Touchscreen and sound problems.

Hello.
I'm using my nexus for a couple of months now (device is assembled in november 2013), and there are two issues that really bother.
First of all, response of touchscreen is not always correct: it sometimes misses some touches (press the letter on a keyboard, for example - and nothing happens until 3-4-5th touch) or handles single touch like multitouch (scrolling through the page in browser with one finger suddenly acts like two-finger gesture). It usually happens on the top half of the display and while tablet lies on flat surface, but not always: I have noticed same behavior in hands. There are no exact circumstances that show that bug always and for sure, but it appears once a day or two. Today, though, it didn't respond to touches at top half at all, and when I ran a multitouch test, I saw this: http://youtu.be/XwEDCwUZ8h8
The other thing is upper loudspeaker. While it is on, a weird high-frequency sound is present. I can not describe it exactly, but I have recorded an example: https://dl.dropboxusercontent.com/u/71375852/%D0%B7%D0%B2%D1%83%D0%BA1.mov In fact, it is louder: I can hear it from a distance of 10-15 centimetre, and it is even louder if device is charging. But verdict of service-centre said, that this is a software issue, manufacturer is awared and will fix in oncoming ROMs.
So the questions are:
1) How common are these problems? Are there any fixes yet? Are the any people who had a replacement or moneyback because of the issues?
2) Are there any official feedback from Asus or services that recognise these issues as hardware fault which requires a repair or replacement?
As I said, my service-centre did not confirmed the sound issue as hardware issue and they also did not notice the touchscreen bug. But the device still had a 20 days repair: the battery was replaced because of unstable work. According to our laws, I need 10 more days of repairs to get a replacement of the device or have the money back. But there should be exactly a repair of a fault which is covered by warranty: it won't work if after 10 days service will just return the device, saying it had worked properly. So any information about these issues would be really appreciated.
Thanks for any responce.

Weird touch screen.

Its been some days, I'm experiencing this weird touch screen problem.
My DZ touch screen doesn't respond properly.
For example:
If i see an image and slide just one finger up and down then it would zoom in and out. And then the whole screen becomes unresponsive.
It seems as if, its touched by itself. Even the softkeys would go numb. Only the haptic feedback of my search button works at that moment.
But the trackpad works perfectly.
But, If i lock and unlock the screen using power buttons, it would work properly for some few moment and then again the problem repeats.
At present I'm repeating this process of locking and unlocking screen to use my phone.
One even worst weird thing is that, if the device is connected to a charger and kept on the table or floor. This problem doesn't occur.
I have done system format, restored my nandroids and even changed Roms. The problem still exists.
Please note, i don't use any Casing or covers that would press the device hard for malfunctioning of screen. I have even removed and replaced my screen guard.
I'm sure, its not a software issue.
And even i dont think its a strip issue, because i dont use my physical keyboard always.
Can anyone say what hardware issue it might be..?
Or what i need to do? I'm really out of options.
Do i have to replace my whole screen or the digitizer..?
Thanks...

Thats no fun,
As you stated it's more than likely a hardware fault, the two most likely culprits would be the digitizer or the main flex cable
Which would be this and this
both relatively easy to replace depending on your experience
in 4.x and up ROMs check the developers setting to show touch or use apps like
z device test
or
yet another multitouch test
these wont help you fix the issue but may show you where the bad points are on the screen
best of luck

I know the problematic spot. Its near Search softkey. Even Yet another multi-touch test would stuck at that spot....
As you can see in the image, that i'm not holding anywhere, still it shows that somewhere around Search softkey its touched by itself.
In second image, If i move my fingers around, it would show the other touch responds, but if i slide near search, it would go and stuck there itself.
So, i guess i would first go with the flex cable.

In actuality I'm leaning toward the digitizer in your case, but its possible to be either.
And if you have a spare phone it may be worth disassembling even without buying anything. On a G1 I once fixed a similar issue just taking out the digitizer and cleaning the contacts on the ribbon and the edges of it as well, when I put it back it worked like new. I think some dust may have gotten into the edges but it may be worth a shot before buying anything... But could make matters worse so if you don't have a spare, buy parts first
Best of luck
Sent from my Nexus 7 using XDA Premium 4 mobile app

I guess i should try disassembling and clean it first. If it still persists then i would go for digitizer.
And thanks for giving a hope.
Thanks...

OP 3 shuts down after I lock it

Hi there,
I recently changed the screen of my OP 3 because it fell on the floor and did not show anything afterwards (I don't know if this only damaged the screen or also other parts of the phone).
Now, the screen works very well and and the phone does turn on as well (I even type this with my OP3). But I now have two problems:
1) My phone shuts down almost immediately after I lock it (after one or two seconds I can still unlock it but after 5 seconds or so it is dead). It does not shut down while the screen is on, though.
2) It heats quite a lot during using and especially during charging. I know, this seems to be a general issue with older OP phones and happened to me as well, but never to that extent (after charging 30 min it gets overheated which never happened before).
Plus, there are two issues that might or might not be related to these to problems so I add them as well: My volume control buttons did not work before the screen replacement, which is quite odd, because the power button works well. And I think I have destroyed the home button/fingerprint scan while changing the screen.
What do you think, is there any hope of solving these problems without having to buy a new phone?
Best, thank you all!
Clemens

Oneplus 3's sides buttons assembly is really fragile. When i was replacing my screen i replaced it too. With my second display, i broke the replacement button ribbon and installed the original one. So you might broke it.
For screen issue, are you using latest OxygenOS? Because some custom roms have issues with third party displays.

clemenssayshi said:
Hi there,
I recently changed the screen of my OP 3 because it fell on the floor and did not show anything afterwards (I don't know if this only damaged the screen or also other parts of the phone).
Now, the screen works very well and and the phone does turn on as well (I even type this with my OP3). But I now have two problems:
1) My phone shuts down almost immediately after I lock it (after one or two seconds I can still unlock it but after 5 seconds or so it is dead). It does not shut down while the screen is on, though.
2) It heats quite a lot during using and especially during charging. I know, this seems to be a general issue with older OP phones and happened to me as well, but never to that extent (after charging 30 min it gets overheated which never happened before).
Plus, there are two issues that might or might not be related to these to problems so I add them as well: My volume control buttons did not work before the screen replacement, which is quite odd, because the power button works well. And I think I have destroyed the home button/fingerprint scan while changing the screen.
What do you think, is there any hope of solving these problems without having to buy a new phone?
Best, thank you all!
Clemens
Click to expand...
Click to collapse
Most likely a hardware issue. To confirm, clean flash OOS latest version (9.0.6 I think) and check. If it is ok, your problem is solved. If not, there are too many variables (screen, volume, home button and any other thing that you disturbed while replacing the screen) to trouble-shoot.