Knock on not working - G2 Q&A, Help & Troubleshooting

I don't know what happened but the other day my touchscreen started acting up. For some reason the knock on doesn't work at all, but knock off does. Also there is like a strip about a half inch from the top of my screen where the touchscreen just does not work. I can't click on anything in that area. I'm running OptimuS v 2.2
Sent from my LG-LS980 using xda app-developers app

Nobody else has had this problem?
Sent from my LG-LS980 using xda app-developers app

Not with stock KK ROM, nope. Maybe others can help you. Otherwise I'd recommend doing factory reset. If that doesn't help, returning to stock to see if it's the ROM or hardware.

Im having that same problem im on stock rom it has never been droped i dont know how to fix it and now it gives me an alert saying it detects my screen is broken although its not

Related

DZ: capacitive buttons unresponsive

litterally out of the blue about 2 days ago, the 4 capacitive buttons on the front simply do not respond to touch...
and EVERYTHING else is working fine, keyboard, display, trackpad, everything else is working w/o a problem...
the lights behind the buttons come on, but no response when pressed...
its currently running Unity 1.27 (since released)
ive tried the patch via CWM to remap the keys to no avail... i am going to try and get into titanium to run a backup of apps, then wipe and flash version 1.31 of unity hoping its a software issue...
the closest thing i found to my issue (DZ related) was an issue with the light sensor causing the backlght to act up, but that isnt whats going on here, so as of now im at a total loss...
any help or direction would be greatly appreciated...
Ok, I wiped, flashed and installed 1.31 and same thing... Crap it has to be HW related then...
Ideas?
Sent from my MB860 using XDA Premium App
johng75 said:
Ok, I wiped, flashed and installed 1.31 and same thing... Crap it has to be HW related then...
Ideas?
Sent from my MB860 using XDA Premium App
Click to expand...
Click to collapse
If you are sure its hardware related, then try to unroot your phone and see if you can get a replacement from your carrier.
Sent from my HTC Vision using XDA App
You need to buy them and replace them. They come as a set with microphone and vibrator attached. Very cheap on ebay. Middle plate has to be separated from glass to get to them.
Sent from my SGH-T959 using XDA App
evilcuber said:
If you are sure its hardware related, then try to unroot your phone and see if you can get a replacement from your carrier.
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
only reason im leaning towards HW is because i already reflashed, and wiped the phone, and they still dont respond...
only problem is,im in FL-USA, and this came from canada... lol
buttons can be bought on ebay huh?
EDIT: would this be what im looking for?
http://www.ebay.com/itm/BUTTON-TRAC...232?pt=LH_DefaultDomain_0&hash=item3cb6a583b8
EDIT: wouldnt i be lookking at getting a digitizer? but if that were bad wouldnt i have more areas besides jus the buttons none responsive?
Can anyone help clarify the part I should be looking for?
Our even have other ideas I could test?
Thank you-
Sent from my MB860 using XDA Premium App
Yes? No? Maybe?
Can anyone help clarify the part I should be looking for?
Our even have other ideas I could test?
Curiously enough, my four capacitive buttons (apps/menu/back/search) have stopped working too
I take good care of my phones
HTC CRAP ??
I'll find out...
I replaced both parts... Back to working condition
Sent from my MB860 using xda premium
And what to parts were those? I have the same issue. The button trackpad flex cable and digitizer were bad?
thanks

Weird graphics corruption.

Hi. I have had this Nexus 4 for about a month and it has does some strange things with the graphics on the bottom bar of buttons. Please see the screenshots attached. It can happen every few minutes and as soon as I touch the screen it will revert to normal again.
Is this something that is likely to get fixed with an update or a hardware issue?
I can't find anything on the internet referring to the same problem but the sales guy in the local carphone warehouse has a nexus 4 as well and said his does the same :-/
Anybody know what is causing it.
Completely stock BTW oh and as you can see. Pressing the hardware buttons for a screenshot does not fix it. Only touching the screen.
Sent from my Nexus 4 using xda app-developers app
Wow.. thats not normal! I would look into RMA'ing that sucker!
You could try using a toolkit to reflash stock to see if that helps, however you will have to unlock the bootloader, flash stock rom and then relock bootloader, then you just go into settings and do a full reset to hide the developer options then you will be stock. The toolkit I use is this one http://forum.xda-developers.com/showthread.php?t=2015469 and its awesome just follow the on screen prompts.
I'm quite sure that this is a software issue, since hardware issues can't be captured by screenshots obviously. I'd recommend flashing it with whatever you like and do a factory reset. You can restore all apps afterwards ofc (use Titanium Backup for example).
Best regards!
gimpor said:
Hi. I have had this Nexus 4 for about a month and it has does some strange things with the graphics on the bottom bar of buttons. Please see the screenshots attached. It can happen every few minutes and as soon as I touch the screen it will revert to normal again.
Is this something that is likely to get fixed with an update or a hardware issue?
I can't find anything on the internet referring to the same problem but the sales guy in the local carphone warehouse has a nexus 4 as well and said his does the same :-/
Anybody know what is causing it.
Completely stock BTW oh and as you can see. Pressing the hardware buttons for a screenshot does not fix it. Only touching the screen.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
OP, did you try checking "Disable HW Overlay" in the Developer's Options????
BlueFlame4 said:
I'm quite sure that this is a software issue, since hardware issues can't be captured by screenshots obviously. I'd recommend flashing it with whatever you like and do a factory reset. You can restore all apps afterwards ofc (use Titanium Backup for example).
Click to expand...
Click to collapse
That only means that it isn't an issue with the physical screen. It could still be an issue with the GPU or other hardware, since various hardware is used to create that software image in the first place.
I have seen exactly this sort of picture posted in at least one thread before on here before, though that might be hard to find on a search.
I would also recommend reinstalling the ROM and if it still happens then it must be hardware. I strongly suspect that it is the hardware.
Sent from my Nexus 4
Thanks for all the replies
I have now disabled HW overlays and it does seem to have fixed the issue (or at least made it far better, I have not noticed it since but it has only been an hour)
I will keep in eye on it for a bit and if it lasts cone back and change the title of the thread to solved.
Thanks for all the help guys.
Sent from my Nexus 4 using xda app-developers app
steviewevie said:
That only means that it isn't an issue with the physical screen. It could still be an issue with the GPU or other hardware, since various hardware is used to create that software image in the first place.
I have seen exactly this sort of picture posted in at least one thread before on here before, though that might be hard to find on a search.
I would also recommend reinstalling the ROM and if it still happens then it must be hardware. I strongly suspect that it is the hardware.
Sent from my Nexus 4
Click to expand...
Click to collapse
hmmm, and the gpu just decides to screw up down there in a perfectly aligned rectangular shape that happens to resemble the navigationbar? i think thats unlikely.
gimpor, can you play gpu accelerated games? try please.
its probably googles weird 4 layer stuff. thats why disabling hw overlays fixes it. same guy that screwed up the kernel colors that merged it into 4.2.2 btw. : P
gimpor again,
hwoverlay is not permanent, a reboot unchecks it. try this
replace persist.hwc.mdpcomp.enable=true
with debug.mdpcomp.maxlayer=3
in your build.prop
or in the worst case persist.hwc.mdpcomp.enable=false
Its much better but still not fixed. Only done it once in about 8 hours whilst playing a solitaire game. I will try the other suggestions when I have decoded them into English :-/
I have not found any games that don't work yet, bad piggies etc. Seem to work okay. Would they be GPU accelerated?
Once again thanks for the assistance with this, it does get rather annoying when you show someone your phone and it's all garbled.
It still does this though :-/
Sent from my Nexus 4 using xda app-developers app
gimpor said:
Its much better but still not fixed. Only done it once in about 8 hours whilst playing a solitaire game. I will try the other suggestions when I have decoded them into English :-/
I have not found any games that don't work yet, bad piggies etc. Seem to work okay. Would they be GPU accelerated?
Once again thanks for the assistance with this, it does get rather annoying when you show someone your phone and it's all garbled.
It still does this though :-/
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
This crap has been happening to me as well in both places of my phone are you on PA??? I hate to think it is that but here is my most resent shot!!!
Sent from my Nexus 4 using xda premium
I am guessing you mean paranoid android? No. Completely stock.
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gimpor said:
I am guessing you mean paranoid android? No. Completely stock.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Ya it was happening on stock as well for me too but I thought it was only my SMS I see you say others are having the same problem... Did you find out if it was hardware or software??? Have you done anything at all or is it still screwed???
Sent from my Nexus 4 using xda premium
I haven't found out anything further and it's still doing it but not as bad. It doesn't seem to happen to every stock phone so I'm guessing its hardware related, or at least something in software not playing well with this specific hardware. Mine is a 212 so they may have changed something on the later ones. I got it from Carphone warehouse on the UK as they were the only ones with stock. I had it changed already as the first one I got was DOA. I think it's going to have to go back if I can't get it fixed soon.
Sent from my Nexus 4 using xda app-developers app
gimpor said:
I haven't found out anything further and it's still doing it but not as bad. It doesn't seem to happen to every stock phone so I'm guessing its hardware related, or at least something in software not playing well with this specific hardware. Mine is a 212 so they may have changed something on the later ones. I got it from Carphone warehouse on the UK as they were the only ones with stock. I had it changed already as the first one I got was DOA. I think it's going to have to go back if I can't get it fixed soon.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Please keep me updated so you haven't rooted it???
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Not rooted. Completely stock. If it gets any better I will post back here.
Sent from my Nexus 4 using xda app-developers app
Guys. Sorry for kinda hijacking this thread but can anyone tell me what this is? It happens every time retract the keyboard and has been happening since first boot. I flashed factory IMG, factory reset and even formatted my phone. For some reason nothing. Again, i am just asking help. Thanks!

Wavy screen?

Any one else have a jittery screen? Occasionally my screen seems to glitch and like... I don't know... Fizzle to the right kind of and then returns to normal. Is this a known issue? Any one else have the issue I describe? I can't tell if it's the phone or the firmware (Stock), and if resetting it will work out or not. I think it's the phone personally and could classify as a manufacturers defect. Any thoughts?
Sent from my XT907 using xda premium
Zero Computing said:
Any one else have a jittery screen? Occasionally my screen seems to glitch and like... I don't know... Fizzle to the right kind of and then returns to normal. Is this a known issue? Any one else have the issue I describe? I can't tell if it's the phone or the firmware (Stock), and if resetting it will work out or not. I think it's the phone personally and could classify as a manufacturers defect. Any thoughts?
Sent from my XT907 using xda premium
Click to expand...
Click to collapse
That started happening to me too; I just thought it was an app freaking out. Every now and then it just jiggles left and right, as if it were shaking. Heck, I even had it happen in TWRP w/ Safestrap when doing a backup.
You have me worried about my own device now, lol.
I am on 4.1.2 and have not seen this issue before the update. I am rooted, but not unlocked.
Yea happens to me too never happened until the update
Sent from my XT907 using xda app-developers app
It happened to me before the update but not at all this bad, nor as noticeable.
Maybe it is software related them. This came with 4.1.1 just updated the other day and now it is definitely worse.
Sent from my XT907 using xda premium
Mine does it as well. Looks similar to how the screen shakes when you enter the screen lock password incorrectly but seems to be random. Most likely a software issue.
Sent from my ASUS Transformer Pad TF300T using Tapatalk HD
Yeah, but, it happens way too much for it to be acceptable or normal. Simple as that, my phone should not be twitching.
It went from happening once or twice every other day, to happening more than ten to twenty times a day. That's unnecessary, and unbelievably annoying.
I think I'm going to call Motorola.
Sent from my XT907 using xda premium
Same here. mines rare though
Sent from my XT907 using xda app-developers app
Happens to me as well, both at the lock screen and when using the phone, ( like browsing the internet) Most likely software related and not something to worry about
Mine does it too, seems to be common with this device.
I would assume firmware too, due to the above report of it happening in recovery.
It should still be brought to Motorola's attention in my opinion. It seems to be getting worse on my device though.
Sent from my XT907 using xda premium
Happening to me to. I'm completely stock, non-rooted, running the latest OTA 4.1.2
Seems to be getting worse too
Happening to me since the update as well. Stock unrooted.
Also seems to be increasing in frequency.
Yeah my frequency is increasing as well here, and I'm thinking it's firmware / hardware, not software. Driver issue maybe? But I'm thinking it's mostly hardware related since most seem not to be having the issue we have, leading me to believe it's a manufacturer's defect
Sent from my XT907 using xda premium
Zero Computing said:
Yeah my frequency is increasing as well here, and I'm thinking it's firmware / hardware, not software. Driver issue maybe? But I'm thinking it's mostly hardware related since most seem not to be having the issue we have, leading me to believe it's a manufacturer's defect
it doesnt happen on cm10
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Click to collapse
ifrankie10 said:
Zero Computing said:
Yeah my frequency is increasing as well here, and I'm thinking it's firmware / hardware, not software. Driver issue maybe? But I'm thinking it's mostly hardware related since most seem not to be having the issue we have, leading me to believe it's a manufacturer's defect
it doesnt happen on cm10
Click to expand...
Click to collapse
Hmm, so other ROMs are unaffected. Interesting. Weird since mine does it in safe strap (twrp), but I guess its a very low level driver freaking out.
Sent from my XT907 using xda app-developers app
Click to expand...
Click to collapse
Not sure really. It's like to switch to another Rom to test if it happens on non stock on my phone... But I'm not doing anything to it until I see a Rom that I feel is stable enough and aosp based.
Sent from my XT907 using xda premium
Hey, just curious if anyone with this problem has used the xfinity app for watching video at all... I now have a similar problem on this s3 im using after using xfinity app
Sent from my SGH-T999 using xda premium
It was happening to me after using the full!screen app. I uninstalled and wiped caches while in recovery and problem solved
Sent from my XT907 using xda app-developers app

[Q] screen partially not touchable

my screen bottom and right side are not touchable as the attachment, bottom and right out of the blue line are not touchable. I'm not sure about the bottom area, but the right side surely became untouchable after I flashed a CM 10 rom, so I guess this is a software problem. yet reset and flash new ROM doesn't fix it. Is there anything i can try to fix it? much appreciate!
Never heard this kind of a software problem. I don't think it's a rom issue. May be your touch screen broken.
That looks like a sense ROM to me. Maybe your screen is messed like conzzy said
Sent from my myTouch 4g using xda app-developers app
I'm having the same issue. Started when using a sense ROM, but the problem has persisted with a couple of CM ROMS as well, so figuring it's a hardware issue...
nola mike said:
I'm having the same issue. Started when using a sense ROM, but the problem has persisted with a couple of CM ROMS as well, so figuring it's a hardware issue...
Click to expand...
Click to collapse
I think we have the same thing, and it is the reason i think it's a software problem that the issue came after flashing a ROM. But everyone believe it's a hardware issue, haha. Probably it's time to change a new phone.
I have the same problem too. The bottom part of the screen doesnt respond in some apps but responds in others. And its not like say it responds in whatsapp today it wont respond for whatsapp next time. If it doesnt respond for a certain app, thats it,it wont respond to that app again no matter what I tried. And I dont think its hardware related. Cause if it was, why would the area that doesnt respond for app A respond to app B. I dont really remember when it started but it started when I was using slimbean rom 4.2.
Sent from my HTC Glacier using xda app-developers app
It happens to me too sometimes.
I don't know why though
Sent from my myTouch 4g using xda app-developers app

Knock off works. Knock on doesnt

The title says it all. I'm afraid it may have been due to a wet application screen protector (last time I'm using that ****).
But everything works.... Just no knock on?? Any suggestions?
Thanks in advance
Sent from my LG-G2
It might as well try to reflash your rom (stock?). I'm no expert in this but that's what I'd do.
Sent from my LG D802
try to remove screen protector,if still doesn't work try to perform factory reset.backup all data before your pc or something.
Sent from my LG-D802 using xda app-developers app

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