Database Info

[Q] Why does my touch screen randomly stop working?

Hi folks, running CM7 with Faux's kernel and the entire front of the phone becomes unresponsive at times, seemingly randomly. Side buttons still work, turning the screen off and then back on fixes the issues. Capacitive buttons stop responding too.
Is there any reason for this to happen? It seems to occur on every nightly I've ever used, and I believe on several kernels.

Updated with logcat taken from right after I turned the screen back on.

Old bump, but still looking for help on this matter.
I've narrowed it down to being a hardware issue. Before cutting out, the touchscreen will often make seemingly random presses (hitting random keys onscreen, for example) for a second, and then crap out.
Applying higher than comfortable force to the top third of the screen restores touch temporarily, but hitting the power button on and off is the only way to reliably fix it (if only for a minute or 2). I'm ready to shell out $40 for a new digitizer, but can anyone else suggest what might be up or alternate methods of fixing it?

If it's still under warranty then try to get a warranty replacement.

Волк said:
If it's still under warranty then try to get a warranty replacement.
Click to expand...
Click to collapse
Alas, I'm using a T-Mobile USA phone in Canada, so no warranty for me.

What are your frequency settings via setcpu? Maybe your min to max is too high of a jump causing instability.

dylyxcore said:
What are your frequency settings via setcpu? Maybe your min to max is too high of a jump causing instability.
Click to expand...
Click to collapse
816 - 216 on Faux's kernel. Happens on stock and UV.
I still think it's the touch module itself since physically squeezing the phone gets a response.
Sent from my LG-P999 using XDA App

Bring it up to 389(or 4-whatever, whatever's next) and see how that works.
Or try another kernel?
Although I'm sure these were things you've tried. I give basic possible solutions.

SefEXE said:
Bring it up to 389(or 4-whatever, whatever's next) and see how that works.
Or try another kernel?
Although I'm sure these were things you've tried. I give basic possible solutions.
Click to expand...
Click to collapse
Thanks, but I've already covered those bases :-(
Sent from my LG-P999 using XDA App

You need a new digitizer. Mine would do something similar. After replacing it, everything worked fine.

buru898 said:
You need a new digitizer. Mine would do something similar. After replacing it, everything worked fine.
Click to expand...
Click to collapse
Thank you. Will this do the job?

g2x touch screen keys not working!.

okay, so the tittle says it itself. but the normal screen works. :\ is the keys that don't do anything. "home, Back, search and menu" everything works flawlessly, but this keys just wont respond. the light turns on every time i touch the screen but when i touch any of the bottom keys. it just doesn't do anything. any one have any suggestions? that could help me .. ive done factory resets twice and the hard reset also. would flashing a rom fix this problem?

Doesn't hurt to try. Do a backup and re flash rom or a different rom if problem is consistent than it might be hardware
Sent from my LG-P999

Thanks for your quick reply tomorrow morning i'll do that. I have to figure out,how to flash a rom. I have not yetrooted the phone or Flashed any rom. If flashing rooms don't work, would replacing the screen, lens or digitizer do anything??
Sent from my MB525 using XDA

Forgot to mention, did you try rebooting and/or hard reset?? Well before you start messing with it, is it still under warranty? If so send it in. Wait till tomorrow like you said maybe another person might have a better answer. If you haven't rooted your phone then you should Imo. Best thing a g2x can get is a custom rom! You will be very impressed. It may be
Sent from my LG-P999

i think i mentioned it on the first post. yes i have done a hard reset and I've done the "pull out the battery, take the sim card out and the Sd card and just turn it on with just the battery. and i believe is not. this phone has been around for a while and like i said is my friends. I wouldn't know if it is but I'll ask him when i get a chance.

It may be the digitizer I don't know for sure I'll actually do some research cause kinda interesting...

I want to go with you needing a new digitizer.

if not find an ICS launcher type thing it'll put the onscreen keys lol. I couldn't much especially on either the G2X nor European variant O2X... and I got bored reading about people spilling water, so make sure it doesn't have water damage other then that... new digitizer.

any suggestion would be appreciated!! I'm sure this phone is not under warranty, so replacing the digitizer wouldn't be a problem for me. at this moment I'm installing ClockworkMod, do any of you know which Rom is the best, as of in "stable/No Problems/Fast"?
Edit: Just Flashed CM7.1.0.1 to my phone and no luck at all. seems like I'm going to have to buy a new digitizer. Hopefully that solves the problem.

You can use the app, Button Saviour.
Sent from my LG-P999 using Tapatalk 2 Beta-5

dw9906 said:
You can use the app, Button Saviour.
Sent from my LG-P999 using Tapatalk 2 Beta-5
Click to expand...
Click to collapse
I saw after Googling the issue,
that it was for rooted phones only, so I didn't say anything lol.
Sent from my LG-P999 using xda premium

my phone is rooted, lol I just installed CM7 on this phone so I will try that app, its only temporary though, until I get the digitizer of course thank you everyone for all your help.

MxFallen said:
my phone is rooted, lol I just installed CM7 on this phone so I will try that app, its only temporary though, until I get the digitizer of course thank you everyone for all your help.
Click to expand...
Click to collapse
Let us know if after the digitizer if it fixed it.
Sent from my LG-P999 using xda premium

Well the manufacturer I bought it from is in china and I live in the states so its going to take a few weeks to get here. But as soon as I replace the old digitizer with the new one I will post the results here.
Sent from my MB525 using XDA

MxFallen said:
Well the manufacturer I bought it from is in china and I live in the states so its going to take a few weeks to get here. But as soon as I replace the old digitizer with the new one I will post the results here.
Sent from my MB525 using XDA
Click to expand...
Click to collapse
While you're at it, may as well make a video/pic tutorial.

I know the aokp ICS rom has a navigation bar that puts a Home, Back, and Menu button on the screen for people that don't have physical buttons. I'm not sure if other ICS roms for the g2x keep this feature. This may work as a temp solution until your new digitiser arrives.

r4d14n7 said:
While you're at it, may as well make a video/pic tutorial.
Click to expand...
Click to collapse
There are plenty of videos/tutorials how to open the phone and replace the digitizer on YouTube.
@linelock, Thanks for your suggestion. but sadly the phone's digitizer/screen got cracked somehow while it was in my backpack, :\ so now I'm just waiting for the one I ordered since the touchscreen doesn't work at all... For now I'm just using this defy..
Sent from my MB525 using XDA

As far as I know, manufacturer warranties is 1 year, depending on when the phone was first sold...don't know if you'd go that way. I don't think it applies to secondhand phones, but some have tried it and it worked.
As far as tutorials on youtube, I found this was the most comprehensive.
http://www.youtube.com/watch?v=-rXX7Rm4gnA
Tempted to make a white g2x...

digitizer came in just a few hours ago, i managed to replace it and now everything works!!! I AM HAPPY!!!. so to answer some Users questions, yes replacing the digitizer did fix the Issue!!

phone keeps shutting off

In the past month I bought a used mytouch 4g slide off ebay in good working order. Lately though the phone keeps shutting off on me whenever I try to do anything. The phone is rooted with S-ON OFF.
I have installed many different roms but of late they all seem to be shutting off. I had this problem but it only happened every few days beforehand. After install of the rom I am waiting around 7 minutes before using my phone. Right now I'm back to my G2, which in my opinion feels better and battery last longer. I also dislike Sense but the camera is fantastic compared to the G2.
I have used Bulletproof 1.1, DoubleShot Lite 1.2.3, and MikTouch-0.7 and all had the same problem.

montusama said:
In the past month I bought a used mytouch 4g slide off ebay in good working order. Lately though the phone keeps shutting off on me whenever I try to do anything. The phone is rooted with S-ON OFF.
I have installed many different roms but of late they all seem to be shutting off. I had this problem but it only happened every few days beforehand. After install of the rom I am waiting around 7 minutes before using my phone. Right now I'm back to my G2, which in my opinion feels better and battery last longer. I also dislike Sense but the camera is fantastic compared to the G2.
I have used Bulletproof 1.1, DoubleShot Lite 1.2.3, and MikTouch-0.7 and all had the same problem.
Click to expand...
Click to collapse
Are you doing full wipes between ROMS? Sounds like a hardware issue to me because MikTouch has Stock Kernel
Sent from my myTouch_4G_Slide using Tapatalk 2

strapped365 said:
Are you doing full wipes between ROMS? Sounds like a hardware issue to me because MikTouch has Stock Kernel
Sent from my myTouch_4G_Slide using Tapatalk 2
Click to expand...
Click to collapse
Yup, always wipe everything. As I got the phone used that limits my options for hardware issues.

montusama said:
Yup, always wipe everything. As I got the phone used that limits my options for hardware issues.
Click to expand...
Click to collapse
Yep looks like you row the same boat I do and I pay outright for all my devices
Sent from my myTouch_4G_Slide using Tapatalk 2

Definitely a hardware problem. Multiple roms should not all have that same problem. Either your battery, battery connection might be bad. But with such a general problem, it can be nearly anything
(exactly why I don't like buying used phones)

Phone Powering off by itself Solved!
So I have bought several phones over the past year cause of this same problem. I take it to the service provider for troubleshooting and all they keep telling me is its a hardware issue. They do a hard restart and blah blah blah. Long story short. IT NEVER FIXES THE PROBLEM... BUT.... I realized it was the battery slipping loose. every time you place the phone down it gently slips out of place. Of course it doesn't fall out cause the phone has a back. So. I just taped my battery to the inside of my phone. PROBLEM SOLVED!!!! Did this with my Samsung Conquer 4g... and with my friends 4g slide. It stopped the mysterious powering off, Try it and see it if works for you! Hope this helps someone!

kays123 said:
So I have bought several phones over the past year cause of this same problem. I take it to the service provider for troubleshooting and all they keep telling me is its a hardware issue. They do a hard restart and blah blah blah. Long story short. IT NEVER FIXES THE PROBLEM... BUT.... I realized it was the battery slipping loose. every time you place the phone down it gently slips out of place. Of course it doesn't fall out cause the phone has a back. So. I just taped my battery to the inside of my phone. PROBLEM SOLVED!!!! Did this with my Samsung Conquer 4g... and with my friends 4g slide. It stopped the mysterious powering off, Try it and see it if works for you! Hope this helps someone!
Click to expand...
Click to collapse
I actually have had a problem like this before with the battery contacts. It seems very snug in the 4g slide.
gtmaster303 said:
Definitely a hardware problem. Multiple roms should not all have that same problem. Either your battery, battery connection might be bad. But with such a general problem, it can be nearly anything
(exactly why I don't like buying used phones)
Click to expand...
Click to collapse
I'm going to say its a hardware problem but my phone has been on for days now, though I'm not using it as I'm using my old G2.
A part of me just wants to stay with the G2 but I miss the excellent camera on the 4g slide. Of course I need to find a use for the slide though. Gotta love turning a very minor decision into a big deal.

If you're going to go used . if you have your area supported in craigslist buy it from there. Then atleast you can check for full functionality before you fork any dough over. I dont think ive ever bought a new phone in my life and never got a lemon

I've bought most of my phone's used and never had a problem. I would get a new phone but my phone selection is limited due to the QWERTY and good camera I want.

My phone tends to turn off when connected to WiFi with WiFi calling on... or at least it used to with stock and the CM 7 kang, but I haven't tried other ROMs.
Since the CM 9 alpha just got WiFi calling, I haven't had much time to test for that yet.
Have you tried not using WiFi or WiFi calling?

Hi all,
I'm having a similar shut off issue, only mu phone is fully stock. No root, no s-off, and no rom. It seems to be completely at random either by using the browser or any app or no app at all(after I've set my phone down, I've tried using it only to find it shut off). I did a factory reset and the problem persist, though not as often. Any ideas? Thanks!

mojoffdawal said:
Hi all,
I'm having a similar shut off issue, only mu phone is fully stock. No root, no s-off, and no rom. It seems to be completely at random either by using the browser or any app or no app at all(after I've set my phone down, I've tried using it only to find it shut off). I did a factory reset and the problem persist, though not as often. Any ideas? Thanks!
Click to expand...
Click to collapse
Sounds like warranty replacement is in your future...
Hastily spouted for your befuddlement

Coug76 said:
Sounds like warranty replacement is in your future...
Hastily spouted for your befuddlement
Click to expand...
Click to collapse
Only if the phone came from TMO though

montusama said:
Only if the phone came from TMO though
Click to expand...
Click to collapse
HTC doesn't care where it came from.
Hastily spouted for your befuddlement

wifi calling / replacement
mojoffdawal said:
Hi all,
I'm having a similar shut off issue, only mu phone is fully stock. No root, no s-off, and no rom. It seems to be completely at random either by using the browser or any app or no app at all(after I've set my phone down, I've tried using it only to find it shut off). I did a factory reset and the problem persist, though not as often. Any ideas? Thanks!
Click to expand...
Click to collapse
Did you have any luck getting a replacement?
Was WiFi calling on? (My phone would reboot even stock randomly when WiFi calling was in use.)

qayshp said:
Did you have any luck getting a replacement?
Was WiFi calling on? (My phone would reboot even stock randomly when WiFi calling was in use.)
Click to expand...
Click to collapse
I did. Same thing happened with the replacement. I rarely use WiFi and I make sure WiFi calling's off when I do use it. I thought it might be an app but so far, it's turned out to be the battery. I got the phone in February so I didn't think it would go bad so soon. Got an Anker and been restart free since.

[Q] [HELP] Really Dead Nexus

Hope you can help.
Today in the morning, I wake up and see that my phone was stuck at the google logo. I removed the battery but after put it again, the phone didn't start. No google logo, no recovery screen, nothing.
Does anyone know an alternative method to start (resurrect) this thing?
Model: i9020a
ROM: AOKP JB M1
Kernel: Marmite 6.7

Are you able to load fastboot using the power and vol up button?

digitalguy13 said:
Are you able to load fastboot using the power and vol up button?
Click to expand...
Click to collapse
Nop. There is no response at all.

jpvalenz said:
Nop. There is no response at all.
Click to expand...
Click to collapse
Remove the battery for a while. While the battery is out, plug the phone in with both AC and USB charging.. this will help you see if it's a defective battery
Sent from my awesome Nexus S

FirePoncho86 said:
Remove the battery for a while. While the battery is out, plug the phone in with both AC and USB charging.. this will help you see if it's a defective battery
Sent from my awesome Nexus S
Click to expand...
Click to collapse
No, this also didn't work.

Hmm.. I'm really not sure how to help

FirePoncho86 said:
Hmm.. I'm really not sure how to help
Click to expand...
Click to collapse
What is curious is that whatever button combination you use, there is no response at all. And the phone was working without problem only a couple hours before. Even if I plug, there is no battery charging image.

Battery's dead?

jpvalenz said:
What is curious is that whatever button combination you use, there is no response at all. And the phone was working without problem only a couple hours before. Even if I plug, there is no battery charging image.
Click to expand...
Click to collapse
Aw man and I thought I had it bad... lol. Good luck with this!
I would try getting your hands on another battery though. I don't think the phone would boot up without a recognizable battery whether it had enough power or not. Maybe someone that actually knows can say... Either way I'll try it with mine tomorrow (mine boots into fastboot and recovery at least) and let you know

Looks like trying out another battery might be the only next logical step. No response even when plugged in for charging indicates a possible battery issue.

hey...
you got a similar condition with my phone...
dont know what to do now...
jpvalenz said:
Hope you can help.
Today in the morning, I wake up and see that my phone was stuck at the google logo. I removed the battery but after put it again, the phone didn't start. No google logo, no recovery screen, nothing.
Does anyone know an alternative method to start (resurrect) this thing?
Model: i9020a
ROM: AOKP JB M1
Kernel: Marmite 6.7
Click to expand...
Click to collapse

I had read a lot of forums that said that with the JB upgrade (any type: AOSP, OTA, etc), after some time, theirs phones gone dead as well. Seems there is some problem with the bootloader that affect the mainframe (motherboard?). No one has been able to resolve this problem.

jpvalenz said:
I had read a lot of forums that said that with the JB upgrade (any type: AOSP, OTA, etc), after some time, theirs phones gone dead as well. Seems there is some problem with the bootloader that affect the mainframe (motherboard?). No one has been able to resolve this problem.
Click to expand...
Click to collapse
So you are saying that Jelly Bean bricks the Nexus S? Where have you read this? It seems like a very serious accusation/assumption.

jpvalenz said:
I had read a lot of forums that said that with the JB upgrade (any type: AOSP, OTA, etc), after some time, theirs phones gone dead as well. Seems there is some problem with the bootloader that affect the mainframe (motherboard?). No one has been able to resolve this problem.
Click to expand...
Click to collapse
interesting.....anything to back this up....

Maybe a jtag could resolve your problem
http://www.youtube.com/watch?v=Ecp8jKmm48k

Mine is doing the same thing. At least it turns on to the Google screen if I remove the chip labled sandisk. Its also the card that has the nfc contacts. Any solution yet?
Sent from my PC36100 using xda app-developers app

I had the exact same thing happened to me. I installed a custom jb ROM (I was already using an earlier version of the same rom) and I noticed abnormal battery drain and in a few hours it died completely. No response at all. Tries different batteries, chargers, everything. I tried sending it in to get it fixed but I was told they found corrosion on the board which was true so it would coat 450 to fix! But I know for a fact that wasn't the reason why the phone was completely unresponsive. I went to wind to get it fixed and the guy told me that they've been getting a crap load of nexus s devices back for the exact same reason. This coincided with the jelly bean upgrade. There's definitely an issue happening with the upgrade but Google or Samsung aren't saying anything.
Sent from my Nexus 4 using xda app-developers app

2nd Screen not showing with main off but shortcuts still active

Just got the phone ,stock att, I already did factory reset it doesn't show 2nd screen when main off but the shortcuts still work(flashlight camera etc..). Could it be that it is super dim, anyway to change that ? It works normal with main screen on. I am on latest att update. I looked everywhere and didn't see anyone with similar issue that didn't get fixed by factory reset. Phone is unlocked also. Any ideas ?

Could you give a little more information about your problem?
The phone has a sensor that detects when you have a flip cover on and shuts off the second screen until you open it, so it could be there's something in front of it.
Another thing you can try is disabling Quick Cover in the settings if you don't have the official LG cover.
Sent from my LG-H900 using Tapatalk

Inquisitor956 said:
Could you give a little more information about your problem?
The phone has a sensor that detects when you have a flip cover on and shuts off the second screen until you open it, so it could be there's something in front of it.
Another thing you can try is disabling Quick Cover in the settings if you don't have the official LG cover.
Sent from my LG-H900 using Tapatalk
Click to expand...
Click to collapse
I tested that sensor with aida64 it seems to be working fine when I put my hand in front of it, also it doesn't show anything in front of it otherwise. I disabled the quick cover option and enabled it doesn't work either way. One thing I noticed that if I use quick cover case and open and close really fast I can see the 2nd screen being on for split second and then it goes black even though the shortcuts are still there.

aim1999x said:
I tested that sensor with aida64 it seems to be working fine when I put my hand in front of it, also it doesn't show anything in front of it otherwise. I disabled the quick cover option and enabled it doesn't work either way. One thing I noticed that if I use quick cover case and open and close really fast I can see the 2nd screen being on for split second and then it goes black even though the shortcuts are still there.
Click to expand...
Click to collapse
Ok. One last thing you should try is to go into settings, Second Screen, and toggle the two options in there. One should be for when the main screen is on, another for when it is off. Switch both of them off, then on, and restart the phone. If that doesn't work, perhaps there's something wrong with the screen.
Sent from my LG-H900 using Tapatalk

Inquisitor956 said:
Ok. One last thing you should try is to go into settings, Second Screen, and toggle the two options in there. One should be for when the main screen is on, another for when it is off. Switch both of them off, then on, and restart the phone. If that doesn't work, perhaps there's something wrong with the screen.
Sent from my LG-H900 using Tapatalk
Click to expand...
Click to collapse
Yeah did that, no difference.

aim1999x said:
Yeah did that, no difference.
Click to expand...
Click to collapse
Could you post an example of what exactly is happening? The second screen does have some issues, mainly light bleed, but that's something that is inevitable due to the manufacturing process. It could be a problem with the backlight, because as far as I know, the screens are independent and don't utilize the same backlight.
Sent from my LG-H900 using Tapatalk

Inquisitor956 said:
Could you post an example of what exactly is happening? The second screen does have some issues, mainly light bleed, but that's something that is inevitable due to the manufacturing process. It could be a problem with the backlight, because as far as I know, the screens are independent and don't utilize the same backlight.
Sent from my LG-H900 using Tapatalk
Click to expand...
Click to collapse
https://youtu.be/7XpASoy91dE
See the video.

aim1999x said:
https://youtu.be/7XpASoy91dE
See the video.
Click to expand...
Click to collapse
I see now. Does the signature show up or do neither of the options work?
I am not sure, but you could also try manually setting your clock and weather settings as well. It is definitely something software side.
Sent from my LG-H900 using Tapatalk

Inquisitor956 said:
I see now. Does the signature show up or do neither of the options work?
I am not sure, but you could also try manually setting your clock and weather settings as well. It is definitely something software side.
Sent from my LG-H900 using Tapatalk
Click to expand...
Click to collapse
Neither option work. Though like I said even though screen is dark if I swipe it to the left with main screen off the shortcuts do work. I want to think this is software issue, but then factory reset should have fixed it. With smart cover it will stay on for half a second and then go dark.

aim1999x said:
Neither option work. Though like I said even though screen is dark if I swipe it to the left with main screen off the shortcuts do work. I want to think this is software issue, but then factory reset should have fixed it. With smart cover it will stay on for half a second and then go dark.
Click to expand...
Click to collapse
Believe me, factory resetting a phone can fix many issues, but if 8ts a bug in the ROM itself, it won't fix that. It is a very strange issue, I admit. I don't know if the phone has a separate backlight for ambient display, but if the screen works when the device is unlocked, it should work when it is off.
My best recommendation for you is to exchange the phone if still under warranty. If you cannot do that, then perhaps try flashing another stock AT&T Rom. If you are unable to do that, then your best bet is to keep fiddling with settings to see if it gets fixed or not.
Sent from my LG-H900 using Tapatalk

Inquisitor956 said:
Believe me, factory resetting a phone can fix many issues, but if 8ts a bug in the ROM itself, it won't fix that. It is a very strange issue, I admit. I don't know if the phone has a separate backlight for ambient display, but if the screen works when the device is unlocked, it should work when it is off.
My best recommendation for you is to exchange the phone if still under warranty. If you cannot do that, then perhaps try flashing another stock AT&T Rom. If you are unable to do that, then your best bet is to keep fiddling with settings to see if it gets fixed or not.
Sent from my LG-H900 using Tapatalk
Click to expand...
Click to collapse
I did buy it on swappa. I do have the receipt from the person that bought it at att store (it was bought in december last year) however I am on cricket. I doubt att will help me. I may need to send it to LG as last resort. I was just hoping there is something else I can do. Could you point to a good guide regarding flashing a stock rom ? I haven't flashed anything in a while

aim1999x said:
I did buy it on swappa. I do have the receipt from the person that bought it at att store (it was bought in december last year) however I am on cricket. I doubt att will help me. I may need to send it to LG as last resort. I was just hoping there is something else I can do. Could you point to a good guide regarding flashing a stock rom ? I haven't flashed anything in a while
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-v10/general/guide-lg-v10-stock-firmware-to-stock-t3224170
I used this guide a quite some time ago when I was removing a rooted FW. I hope this can help.

I sent the phone to LG and they "repaired" it. They friggin replaced the lcd and obviously didn't test for the issue. It is still there. Question is should I return it again or should I try flashing it myself ?

aim1999x said:
I sent the phone to LG and they "repaired" it. They friggin replaced the lcd and obviously didn't test for the issue. It is still there. Question is should I return it again or should I try flashing it myself ?
Click to expand...
Click to collapse
Well, I flashed latest stock firmware using LGUP refurbish option and it didn't fix it. Does anyone have any other ideas ?

Well, I can tell you from experience that whomever received your device for repair probably didn't get all the information. He or she was probably told that there were issues with the screen and to just replace it, without anything else. This is what happens when you have a third party that doesn't understand much about the technology or the devices themselves transferring information between two points.
I can honestly tell you that if swapping out the display didn't fix your issue, there's not much to do about it. It's a shame though, because this is a great phone, and besides battery life, LG nailed pretty much every aspect of what a great phone is. I think your best best is to contact the original owner and notify them of the issue and work something out. Other than that, you can either keep using the device like it or switch to another phone.
Sent from my LG-H900 using Tapatalk