Develop Bugs

Can't allign my screen.

Hey guys!
I'm experiencing a very strange and annoying issue with my BA, and I was wondering if I could get some input from you.
So, here goes:
The touchscreen (not LCD) in my unit was broken, and thus I decided to fix it. I purchased a new one off eBay a few weeks ago, and just yesteday I proceeded to install it. To my surprise, something seems to have gone wrong.
I power up the unit, make my way into "Allign screen", and then the last "cross" that I have to touch rarely clicks in. On the other hand, when it does get detected, it simply restarts the alligning process.
What I've tried so far:
- allign right after installation -> no luck
- hard reset (on WM2k5_v4_R2.1) -> no luck again
- opened up the unit again, repositioned the screen -> nothing
- upgraded to Logout_WM2K5_5.4.03_HN -> still nothing
Right now I'm out of ideas, and I was hoping somebody here has some. Do you think the new touchscreen might be flawed ? I'm already discussing this issue with the seller.
Thanks for reading

New touchscreen or a refurb? Same type? (toppolly / sony) Sounds like it's been stripped from an old unit to me as it's not recognising the taps in the right places - can you see somehting like a liquid spill anywhere on the panel? This is what it looks like when the overlay touches the glass.
Richard

http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=9720199180&rd=1&sspagename=STRK:MEWN:IT&rd=1
That was in fact my auction. Looked like brand spanking new to me, not one single stylus mark, and also had the protective sheet on. Of course, I might be wrong
Also, no liquid spill visible anywhere.

NSD said:
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=9720199180&rd=1&sspagename=STRK%3AMEWN%3AIT&rd=1
That was in fact my auction. Looked like brand spanking new to me, not one single stylus mark, and also had the protective sheet on. Of course, I might be wrong
Also, no liquid spill visible anywhere.
Click to expand...
Click to collapse
I bought from him also and am yet to fit - I got the completley wrong module :-(
Richard

What do you mean wrong module ? The "tip" of the flex cable ? Mine seems to match with what was already there ...

Hey NSD!
I purchased the exact same module for my Himalaya device, after the touchscreen being cracked.
My father, who is an electronic engineer, soldered the flat wire from the touchscreen onto the rear side of the LCD with normal copper wires. Unfortunately I have the exact same problem a you!
After attaching the entire LCD (+touchscreen) onto the mainboard, and supplying power from the battery, I'm not able to go past the Align Screen section!!!
The touchscreen is from the manufacture 'Asian Media' (I think so...).
It can't be a coincidence, that both of our touchscreens don't respond to tapping!!!
Anybody been able to get this problem fixed??
Any help would be appreciated!!!
Kind Regards,
Tony Schattat

I never replaced the touchscreen of my BA but I have replaced the screen of my ex ipaq 6315 once.
And one thing that I know is that sometimes the screen align process is different from the normal, I mean, it keeps repeating and repeating again many times....until the unit finally passes the align step and finishes the configuration. Actually I´ve "aligned" the screen more than 30 x (when I replaced the screen).
It happened just once and then I had a completely normal unit.

[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

Touch screen only works for a few seconds after reconnecting internal cable

Hi,
I have two Samsung galaxy tab 3 7 inch (T215). The have worked perfectly for a couple of years and then suddenly the touchscreens on both stopped working within a few days.
Since this happened to both units at the same time I suspect a software update is the cause.
One of the screens had a crack, so just to eliminate the screens I bought two replacement screens and replaced, but these did not work either. Both the earlier screens were also replacement screens, the original screens have broken earlier. The earlier replacement screens had been in daily use for more than a year.
I have tried factory reset, and I have booted with TWRP without getting the touchscreen to work. I then found out that if I take off the backshell, remove the touchscreen cable and reattach it, the touchscreen will work for a few seconds, both in TWRP and in stock Android.
Any suggestions to fix this?

Touchscreen problem - hardware or software related?

My Nexus 2013 has been experiencing erratic touchscreen behaviour lately.
Here's some videos to indicate what I mean:
Video 1
Video 2
It was running lollipop, which I then upgraded to Marshmallow thinking that would alleviate the problems.
I also cleared the cache and factory restored - no improvement.
I've tried sfhub's touchscreen fixes - also no improvement.
I've also opened it up and tried the ribbon cable fix - no improvement.
The screen only really recognises touches on a small vertical band on the right of the screen. At one point, it only registered touches within the dead zones if I had two fingers on the screen, but then further tests revealed that that was a fluke and then it went back to being erratic.
I was wondering if anyone else had this problem? If so, have you managed to fix it?
Is this more likely a hardware or a software problem?
Any help would be appreciated!
Thanks

I would try cutting power to the tablet and cleaning the digitizer connections with alcohol. Then try parrot mod as well

chkenwing said:
The screen only really recognises touches on a small vertical band on the right of the screen.
Click to expand...
Click to collapse
This sounds like a hardware issue. But still, certainly worth trying the parrotmod fix. As ethanchow suggested try cleaning the ribbon cable contacts. 91% isopropyl alcohol (and of course give it a second to be sure it's fully dry).
I'm assuming it's an original screen.

bad wifi reception due to faulty hardware

Hello community,
due to a water incident I had to replace some hardware parts as microphone and finger print sensor.
The navigation proximity buttons do also not work, but I did not replace them.
After this replacement, the phone worked 3 months fine....then I replaced the main camera because it didnt focus anymore.
Since the camera replacement I have very bad wifi reception. When I am right next to the rooter, it is working but unstable. Thats why I suspect an antenna/hardware problem or another hardware issue. I did replace the black coax cable (also a used cable) next to the battery already, but this did not resolve the problem.
On the software side I did a complete reset. Actually twice because I had to unlock the bootloader and then did a reset. Also not resolving the problem.
- I am now wondering, weather there are more or different wifi antennas in the onplus 3 except the black coax cable.
- Does anyone have experience about the sensitivity of those coax cables? The replacement cable I have is also from a used phone and has some usage marks.
- Anyone another Idea, where the problem can be?
Thanks for any suggestions!

gino.rockt said:
Hello community,
due to a water incident I had to replace some hardware parts as microphone and finger print sensor.
The navigation proximity buttons do also not work, but I did not replace them.
After this replacement, the phone worked 3 months fine....then I replaced the main camera because it didnt focus anymore.
Since the camera replacement I have very bad wifi reception. When I am right next to the rooter, it is working but unstable. Thats why I suspect an antenna/hardware problem or another hardware issue. I did replace the black coax cable (also a used cable) next to the battery already, but this did not resolve the problem.
On the software side I did a complete reset. Actually twice because I had to unlock the bootloader and then did a reset. Also not resolving the problem.
- I am now wondering, weather there are more or different wifi antennas in the onplus 3 except the black coax cable.
- Does anyone have experience about the sensitivity of those coax cables? The replacement cable I have is also from a used phone and has some usage marks.
- Anyone another Idea, where the problem can be?
Thanks for any suggestions!
Click to expand...
Click to collapse
The problem can be the constant opening up of the phone and meddling with it.

gino.rockt said:
Hello community,
due to a water incident I had to replace some hardware parts as microphone and finger print sensor.
The navigation proximity buttons do also not work, but I did not replace them.
After this replacement, the phone worked 3 months fine....then I replaced the main camera because it didnt focus anymore.
Since the camera replacement I have very bad wifi reception. When I am right next to the rooter, it is working but unstable. Thats why I suspect an antenna/hardware problem or another hardware issue. I did replace the black coax cable (also a used cable) next to the battery already, but this did not resolve the problem.
On the software side I did a complete reset. Actually twice because I had to unlock the bootloader and then did a reset. Also not resolving the problem.
- I am now wondering, weather there are more or different wifi antennas in the onplus 3 except the black coax cable.
- Does anyone have experience about the sensitivity of those coax cables? The replacement cable I have is also from a used phone and has some usage marks.
- Anyone another Idea, where the problem can be?
Thanks for any suggestions!
Click to expand...
Click to collapse
I have the same problem with my oneplus 3, i too had to change my back camera because it didn't focus, which after many attempt didn't work and i ended up using a magnet right next to the camera.
I purchased a coax black cable but it didn't solve anything.
I also have switched between a numerous amount of rom and i can tell it's hardware.
So it's either the main board that suffered from the chirurgical operation we had to do or the back's antenna that are faulty, i don't think removing the camera would make any difference.
My wifi reception is really bad and i can't get a decent bandwidth even right next to the wifi...
I'll have to re-open it to change the amoled that just broked so i'll keep you updated.

Changing the back of the phone can make any difference?
Thanks!